Merge branch 'master' into keeper-some-improvement2

.github/PULL_REQUEST_TEMPLATE.md

@@ -59,6 +59,9 @@ At a minimum, the following information should be added (but add more as needed)
 - [ ] <!---ci_exclude_tsan|msan|ubsan|coverage--> Exclude: All with TSAN, MSAN, UBSAN, Coverage
 - [ ] <!---ci_exclude_aarch64|release|debug--> Exclude: All with aarch64, release, debug
 ---
+- [ ] <!---ci_include_fuzzer--> Run only fuzzers related jobs (libFuzzer fuzzers, AST fuzzers, etc.)
+- [ ] <!---ci_exclude_ast--> Exclude: AST fuzzers
+---
 - [ ] <!---do_not_test--> Do not test
 - [ ] <!---woolen_wolfdog--> Woolen Wolfdog
 - [ ] <!---upload_all--> Upload binaries for special builds

.github/actions/clean/action.yml

@@ -1,11 +1,23 @@
 name: Clean runner
 description: Clean the runner's temp path on ending
+inputs:
+  images:
+    description: clean docker images
+    default: false
+    type: boolean
 runs:
   using: "composite"
   steps:
-    - name: Clean
+    - name: Clean Temp
       shell: bash
       run: |
-          docker ps --quiet | xargs --no-run-if-empty docker kill ||:
-          docker ps --all --quiet | xargs --no-run-if-empty docker rm -f ||:
-          sudo rm -fr "${{runner.temp}}"
+        sudo rm -fr "${{runner.temp}}"
+    - name: Clean Docker Containers
+      shell: bash
+      run: |
+          docker rm -vf $(docker ps -aq) ||:
+    - name: Clean Docker Images
+      if: ${{ inputs.images }}
+      shell: bash
+      run: |
+        docker rmi -f $(docker images -aq) ||:

.github/actions/debug/action.yml

@@ -0,0 +1,18 @@
+name: DebugInfo
+description: Prints workflow debug info
+
+runs:
+  using: "composite"
+  steps:
+    - name: Print envs
+      shell: bash
+      run: |
+          echo "::group::Envs"
+          env
+          echo "::endgroup::"
+    - name: Print Event.json
+      shell: bash
+      run: |
+          echo "::group::Event.json"
+          python3 -m json.tool "$GITHUB_EVENT_PATH"
+          echo "::endgroup::"

.github/workflows/auto_releases.yml

@@ -0,0 +1,99 @@
+name: AutoReleases
+
+env:
+  PYTHONUNBUFFERED: 1
+
+concurrency:
+  group: autoreleases
+
+on:
+  #  schedule:
+  #    - cron: '0 9 * * *'
+  workflow_dispatch:
+    inputs:
+      dry-run:
+        description: 'Dry run'
+        required: false
+        default: false
+        type: boolean
+
+jobs:
+  AutoReleaseInfo:
+    runs-on: [self-hosted, release-maker]
+    outputs:
+      data: ${{ steps.info.outputs.AUTO_RELEASE_PARAMS }}
+      dry_run: ${{ steps.info.outputs.DRY_RUN }}
+    steps:
+      - name: Set envs
+        run: |
+          cat >> "$GITHUB_ENV" << 'EOF'
+          ROBOT_CLICKHOUSE_SSH_KEY<<RCSK
+          ${{secrets.ROBOT_CLICKHOUSE_SSH_KEY}}
+          RCSK
+          EOF
+          echo "DRY_RUN=true" >> "$GITHUB_ENV"
+      - name: Check out repository code
+        uses: ClickHouse/checkout@v1
+        with:
+          fetch-depth: 0  # full history needed
+      - name: Debug Info
+        uses: ./.github/actions/debug
+      - name: Prepare Info
+        id: info
+        run: |
+          cd "$GITHUB_WORKSPACE/tests/ci"
+          python3 auto_release.py --prepare
+          echo "::group::Auto Release Info"
+          python3 -m json.tool /tmp/autorelease_info.json
+          echo "::endgroup::"
+          {
+              echo 'AUTO_RELEASE_PARAMS<<EOF'
+              cat  /tmp/autorelease_params.json
+              echo 'EOF'
+          } >> "$GITHUB_OUTPUT"
+          if [[ "${{ github.event_name }}" == "schedule" ]]; then
+            echo "DRY_RUN=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "DRY_RUN=${{ github.event.inputs.dry-run }}" >> "$GITHUB_OUTPUT"
+          fi
+      - name: Post Release Branch statuses
+        run: |
+          cd "$GITHUB_WORKSPACE/tests/ci"
+          python3 auto_release.py --post-status
+      - name: Clean up
+        uses: ./.github/actions/clean
+
+  Releases:
+    needs: AutoReleaseInfo
+    strategy:
+      matrix:
+        release_params: ${{ fromJson(needs.AutoReleaseInfo.outputs.data).releases }}
+      max-parallel: 1
+    name: Release ${{ matrix.release_params.release_branch }}
+    uses: ./.github/workflows/create_release.yml
+    with:
+      ref: ${{ matrix.release_params.commit_sha }}
+      type: patch
+      dry-run: ${{ fromJson(needs.AutoReleaseInfo.outputs.dry_run) }}
+    secrets:
+      ROBOT_CLICKHOUSE_COMMIT_TOKEN: ${{ secrets.ROBOT_CLICKHOUSE_COMMIT_TOKEN }}
+
+  CleanUp:
+    needs: [Releases]
+    runs-on: [self-hosted, release-maker]
+    steps:
+      - uses: ./.github/actions/clean
+        with:
+          images: true
+
+#  PostSlackMessage:
+#    needs: [Releases]
+#    runs-on: [self-hosted, release-maker]
+#    if: ${{ !cancelled() }}
+#    steps:
+#      - name: Check out repository code
+#        uses: ClickHouse/checkout@v1
+#      - name: Post
+#        run: |
+#          cd "$GITHUB_WORKSPACE/tests/ci"
+#          python3 auto_release.py --post-auto-release-complete --wf-status ${{ job.status }}

.github/workflows/create_release.yml

@@ -2,6 +2,7 @@ name: CreateRelease
 
 concurrency:
   group: release
+
 'on':
   workflow_dispatch:
     inputs:
@@ -26,6 +27,28 @@ concurrency:
         required: false
         default: false
         type: boolean
+  workflow_call:
+    inputs:
+      ref:
+        description: 'Git reference (branch or commit sha) from which to create the release'
+        required: true
+        type: string
+      type:
+        description: 'The type of release: "new" for a new release or "patch" for a patch release'
+        required: true
+        type: string
+      only-repo:
+        description: 'Run only repos updates including docker (repo-recovery, tests)'
+        required: false
+        default: false
+        type: boolean
+      dry-run:
+        description: 'Dry run'
+        required: false
+        default: false
+        type: boolean
+    secrets:
+      ROBOT_CLICKHOUSE_COMMIT_TOKEN:
 
 jobs:
   CreateRelease:
@@ -101,6 +124,7 @@ jobs:
             --volume=".:/wd" --workdir="/wd" \
             clickhouse/style-test \
             ./tests/ci/changelog.py -v --debug-helpers \
+            --gh-user-or-token ${{ secrets.ROBOT_CLICKHOUSE_COMMIT_TOKEN }} \
             --jobs=5 \
             --output="./docs/changelogs/${{ env.RELEASE_TAG }}.md" ${{ env.RELEASE_TAG }}
           git add ./docs/changelogs/${{ env.RELEASE_TAG }}.md
@@ -129,9 +153,9 @@ jobs:
         if: ${{ inputs.type == 'patch' && ! inputs.only-repo }}
         shell: bash
         run: |
-          python3 ./tests/ci/create_release.py --set-progress-completed
           git reset --hard HEAD
           git checkout "$GITHUB_REF_NAME"
+          python3 ./tests/ci/create_release.py --set-progress-completed
       - name: Create GH Release
         if: ${{ inputs.type == 'patch' && ! inputs.only-repo }}
         shell: bash

.github/workflows/release_branches.yml

@@ -130,6 +130,7 @@ jobs:
     with:
       build_name: package_debug
       data: ${{ needs.RunConfig.outputs.data }}
+      force: true
   BuilderBinDarwin:
     needs: [RunConfig, BuildDockers]
     if: ${{ !failure() && !cancelled() }}
@@ -482,7 +483,7 @@ jobs:
         if: ${{ !failure() }}
         run: |
           # update overall ci report
-          python3 finish_check.py --wf-status ${{ contains(needs.*.result, 'failure') && 'failure' || 'success' }}
+          python3 ./tests/ci/finish_check.py --wf-status ${{ contains(needs.*.result, 'failure') && 'failure' || 'success' }}
       - name: Check Workflow results
         if: ${{ !cancelled() }}
         run: |
@@ -490,5 +491,4 @@ jobs:
           cat > "$WORKFLOW_RESULT_FILE" << 'EOF'
           ${{ toJson(needs) }}
           EOF
-
           python3 ./tests/ci/ci_buddy.py --check-wf-status

.gitmodules

@@ -108,7 +108,7 @@
 	url = https://github.com/ClickHouse/icudata
 [submodule "contrib/icu"]
 	path = contrib/icu
-	url = https://github.com/unicode-org/icu
+	url = https://github.com/ClickHouse/icu
 [submodule "contrib/flatbuffers"]
 	path = contrib/flatbuffers
 	url = https://github.com/ClickHouse/flatbuffers
@@ -230,9 +230,6 @@
 [submodule "contrib/minizip-ng"]
 	path = contrib/minizip-ng
 	url = https://github.com/zlib-ng/minizip-ng
-[submodule "contrib/annoy"]
-	path = contrib/annoy
-	url = https://github.com/ClickHouse/annoy
 [submodule "contrib/qpl"]
 	path = contrib/qpl
 	url = https://github.com/intel/qpl
@@ -348,9 +345,6 @@
 [submodule "contrib/FP16"]
 	path = contrib/FP16
 	url = https://github.com/Maratyszcza/FP16.git
-[submodule "contrib/robin-map"]
-	path = contrib/robin-map
-	url = https://github.com/Tessil/robin-map.git
 [submodule "contrib/aklomp-base64"]
 	path = contrib/aklomp-base64
 	url = https://github.com/aklomp/base64.git

CHANGELOG.md

@@ -1,4 +1,5 @@
 ### Table of Contents
+**[ClickHouse release v24.8 LTS, 2024-08-20](#243)**<br/>
 **[ClickHouse release v24.7, 2024-07-30](#247)**<br/>
 **[ClickHouse release v24.6, 2024-07-01](#246)**<br/>
 **[ClickHouse release v24.5, 2024-05-30](#245)**<br/>
@@ -10,6 +11,152 @@
 
 # 2024 Changelog
 
+### <a id="248"></a> ClickHouse release 24.8 LTS, 2024-08-20
+
+#### Backward Incompatible Change
+* `clickhouse-client` and `clickhouse-local` now default to multi-query mode (instead single-query mode). As an example, `clickhouse-client -q "SELECT 1; SELECT 2"` now works, whereas users previously had to add `--multiquery` (or `-n`). The `--multiquery/-n` switch became obsolete. INSERT queries in multi-query statements are treated specially based on their FORMAT clause: If the FORMAT is `VALUES` (the most common case), the end of the INSERT statement is represented by a trailing semicolon `;` at the end of the query. For all other FORMATs (e.g. `CSV` or `JSONEachRow`), the end of the INSERT statement is represented by two newlines `\n\n` at the end of the query. [#63898](https://github.com/ClickHouse/ClickHouse/pull/63898) ([FFish](https://github.com/wxybear)).
+* In previous versions, it was possible to use an alternative syntax for `LowCardinality` data types by appending `WithDictionary` to the name of the data type. It was an initial working implementation, and it was never documented or exposed to the public. Now, it is deprecated. If you have used this syntax, you have to ALTER your tables and rename the data types to `LowCardinality`. [#66842](https://github.com/ClickHouse/ClickHouse/pull/66842) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix logical errors with storage `Buffer` used with distributed destination table. It's a backward incompatible change: queries using `Buffer` with a distributed destination table may stop working if the table appears more than once in the query (e.g., in a self-join). [#67015](https://github.com/ClickHouse/ClickHouse/pull/67015) ([vdimir](https://github.com/vdimir)).
+* In previous versions, calling functions for random distributions based on the Gamma function (such as Chi-Squared, Student, Fisher) with negative arguments close to zero led to a long computation or an infinite loop. In the new version, calling these functions with zero or negative arguments will produce an exception. This closes [#67297](https://github.com/ClickHouse/ClickHouse/issues/67297). [#67326](https://github.com/ClickHouse/ClickHouse/pull/67326) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* The system table `text_log` is enabled by default. This is fully compatible with previous versions, but you may notice subtly increased disk usage on the local disk (this system table takes a tiny amount of disk space). [#67428](https://github.com/ClickHouse/ClickHouse/pull/67428) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* In previous versions, `arrayWithConstant` can be slow if asked to generate very large arrays. In the new version, it is limited to 1 GB per array. This closes [#32754](https://github.com/ClickHouse/ClickHouse/issues/32754). [#67741](https://github.com/ClickHouse/ClickHouse/pull/67741) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix REPLACE modifier formatting (forbid omitting brackets). [#67774](https://github.com/ClickHouse/ClickHouse/pull/67774) ([Azat Khuzhin](https://github.com/azat)).
+* Backported in [#68349](https://github.com/ClickHouse/ClickHouse/issues/68349): Reimplement `Dynamic` type. Now when the limit of dynamic data types is reached new types are not casted to String but stored in a special data structure in binary format with binary encoded data type. Now any type ever inserted into `Dynamic` column can be read from it as subcolumn. [#68132](https://github.com/ClickHouse/ClickHouse/pull/68132) ([Kruglov Pavel](https://github.com/Avogar)).
+
+#### New Feature
+* Added a new `MergeTree` setting `deduplicate_merge_projection_mode` to control the projections during merges (for specific engines) and `OPTIMIZE DEDUPLICATE` query. Supported options: `throw` (throw an exception in case the projection is not fully supported for *MergeTree engine), `drop` (remove projection during merge if it can't be merged itself consistently) and `rebuild` (rebuild projection from scratch, which is a heavy operation). [#66672](https://github.com/ClickHouse/ClickHouse/pull/66672) ([jsc0218](https://github.com/jsc0218)).
+* Add `_etag` virtual column for S3 table engine. Fixes [#65312](https://github.com/ClickHouse/ClickHouse/issues/65312). [#65386](https://github.com/ClickHouse/ClickHouse/pull/65386) ([skyoct](https://github.com/skyoct)).
+* Added a tagging (namespace) mechanism for the query cache. The same queries with different tags are considered different by the query cache. Example: `SELECT 1 SETTINGS use_query_cache = 1, query_cache_tag = 'abc'` and `SELECT 1 SETTINGS use_query_cache = 1, query_cache_tag = 'def'` now create different query cache entries. [#68235](https://github.com/ClickHouse/ClickHouse/pull/68235) ([sakulali](https://github.com/sakulali)).
+* Support more variants of JOIN strictness (`LEFT/RIGHT SEMI/ANTI/ANY JOIN`) with inequality conditions which involve columns from both left and right table. e.g. `t1.y < t2.y` (see the setting `allow_experimental_join_condition`). [#64281](https://github.com/ClickHouse/ClickHouse/pull/64281) ([lgbo](https://github.com/lgbo-ustc)).
+* Intrpret Hive-style partitioning for different engines (`File`, `URL`, `S3`, `AzureBlobStorage`, `HDFS`). Hive-style partitioning organizes data into partitioned sub-directories, making it efficient to query and manage large datasets. Currently, it only creates virtual columns with the appropriate name and data. The follow-up PR will introduce the appropriate data filtering (performance speedup). [#65997](https://github.com/ClickHouse/ClickHouse/pull/65997) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
+* Add function `printf` for Spark compatiability (but you can use the existing `format` function). [#66257](https://github.com/ClickHouse/ClickHouse/pull/66257) ([李扬](https://github.com/taiyang-li)).
+* Add options `restore_replace_external_engines_to_null` and `restore_replace_external_table_functions_to_null` to replace external engines and table_engines to `Null` engine that can be useful for testing. It should work for RESTORE and explicit table creation. [#66536](https://github.com/ClickHouse/ClickHouse/pull/66536) ([Ilya Yatsishin](https://github.com/qoega)).
+* Added support for reading `MULTILINESTRING` geometry in `WKT` format using function `readWKTLineString`. [#67647](https://github.com/ClickHouse/ClickHouse/pull/67647) ([Jacob Reckhard](https://github.com/jacobrec)).
+* Add a new table function `fuzzQuery`. This function allows the modification of a given query string with random variations. Example: `SELECT query FROM fuzzQuery('SELECT 1') LIMIT 5;`. [#67655](https://github.com/ClickHouse/ClickHouse/pull/67655) ([pufit](https://github.com/pufit)).
+* Add a query `ALTER TABLE ... DROP DETACHED PARTITION ALL` to drop all detached partitions. [#67885](https://github.com/ClickHouse/ClickHouse/pull/67885) ([Duc Canh Le](https://github.com/canhld94)).
+* Add the `rows_before_aggregation_at_least` statistic to the query response when a new setting, `rows_before_aggregation` is enabled. This statistic represents the number of rows read before aggregation. In the context of a distributed query, when using the `group by` or `max` aggregation function without a `limit`, `rows_before_aggregation_at_least` can reflect the number of rows hit by the query. [#66084](https://github.com/ClickHouse/ClickHouse/pull/66084) ([morning-color](https://github.com/morning-color)).
+* Support `OPTIMIZE` query on `Join` tables to reduce their memory footprint. [#67883](https://github.com/ClickHouse/ClickHouse/pull/67883) ([Duc Canh Le](https://github.com/canhld94)).
+* Allow run query instantly in play if you add `&run=1` in the URL [#66457](https://github.com/ClickHouse/ClickHouse/pull/66457) ([Aleksandr Musorin](https://github.com/AVMusorin)).
+
+#### Experimental Feature
+* Implement a new `JSON` data type. [#66444](https://github.com/ClickHouse/ClickHouse/pull/66444) ([Kruglov Pavel](https://github.com/Avogar)).
+* Add the new `TimeSeries` table engine. [#64183](https://github.com/ClickHouse/ClickHouse/pull/64183) ([Vitaly Baranov](https://github.com/vitlibar)).
+* Add new experimental `Kafka` storage engine to store offsets in Keeper instead of relying on committing them to Kafka. It makes the commit to ClickHouse tables atomic with regard to consumption from the queue. [#57625](https://github.com/ClickHouse/ClickHouse/pull/57625) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Use adaptive read task size calculation method (adaptive meaning it depends on read column sizes) for parallel replicas. [#60377](https://github.com/ClickHouse/ClickHouse/pull/60377) ([Nikita Taranov](https://github.com/nickitat)).
+* Added statistics type `count_min` (count-min sketches) which provide selectivity estimations for equality predicates like `col = 'val'`. Supported data types are string, date, datatime and numeric types. [#65521](https://github.com/ClickHouse/ClickHouse/pull/65521) ([JackyWoo](https://github.com/JackyWoo)).
+
+#### Performance Improvement
+* Setting `optimize_functions_to_subcolumns` is enabled by default. [#68053](https://github.com/ClickHouse/ClickHouse/pull/68053) ([Anton Popov](https://github.com/CurtizJ)).
+* Store the `plain_rewritable` disk directory metadata in `__meta` layout, separately from the merge tree data in the object storage. Move the `plain_rewritable` disk to a flat directory structure. [#65751](https://github.com/ClickHouse/ClickHouse/pull/65751) ([Julia Kartseva](https://github.com/jkartseva)).
+* Improve columns squashing (an operation happening in INSERT queries) for `String`/`Array`/`Map`/`Variant`/`Dynamic` types by reserving required memory in advance for all subcolumns. [#67043](https://github.com/ClickHouse/ClickHouse/pull/67043) ([Kruglov Pavel](https://github.com/Avogar)).
+* Speed up `SYSTEM FLUSH LOGS` and flush logs on shutdown. [#67472](https://github.com/ClickHouse/ClickHouse/pull/67472) ([Sema Checherinda](https://github.com/CheSema)).
+* Improved overall performance of merges by reducing the overhead of the scheduling steps of merges. [#68016](https://github.com/ClickHouse/ClickHouse/pull/68016) ([Anton Popov](https://github.com/CurtizJ)).
+* Speed up tables removal for `DROP DATABASE` query, increased the default value for `database_catalog_drop_table_concurrency` to 16. [#67228](https://github.com/ClickHouse/ClickHouse/pull/67228) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
+* Avoid allocating too much capacity for array column while writing ORC. Performance speeds up 15% for an Array column. [#67879](https://github.com/ClickHouse/ClickHouse/pull/67879) ([李扬](https://github.com/taiyang-li)).
+* Speed up mutations for non-replicated MergeTree significantly [#66911](https://github.com/ClickHouse/ClickHouse/pull/66911) [#66909](https://github.com/ClickHouse/ClickHouse/pull/66909) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+
+#### Improvement
+* Setting `allow_experimental_analyzer` is renamed to `enable_analyzer`. The old name is preserved in a form of an alias. This signifies that Analyzer is no longer in beta and is fully promoted to production. [#66438](https://github.com/ClickHouse/ClickHouse/pull/66438) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
+* Improve schema inference of date times. Now DateTime64 used only when date time has fractional part, otherwise regular DateTime is used. Inference of Date/DateTime is more strict now, especially when `date_time_input_format='best_effort'` to avoid inferring date times from strings in corner cases. [#68382](https://github.com/ClickHouse/ClickHouse/pull/68382) ([Kruglov Pavel](https://github.com/Avogar)).
+* ClickHouse server now supports new setting `max_keep_alive_requests`. For keep-alive HTTP connections to the server it works in tandem with `keep_alive_timeout` - if idle timeout not expired but there already more than `max_keep_alive_requests` requests done through the given connection - it will be closed by the server. [#61793](https://github.com/ClickHouse/ClickHouse/pull/61793) ([Nikita Taranov](https://github.com/nickitat)).
+* Various improvements in the advanced dashboard. This closes [#67697](https://github.com/ClickHouse/ClickHouse/issues/67697). This closes [#63407](https://github.com/ClickHouse/ClickHouse/issues/63407). This closes [#51129](https://github.com/ClickHouse/ClickHouse/issues/51129). This closes [#61204](https://github.com/ClickHouse/ClickHouse/issues/61204). [#67701](https://github.com/ClickHouse/ClickHouse/pull/67701) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Do not require a grant for REMOTE when creating a Distributed table: a grant for the Distributed engine is enough. [#65419](https://github.com/ClickHouse/ClickHouse/pull/65419) ([jsc0218](https://github.com/jsc0218)).
+* Do not pass logs for keeper explicitly in the Docker image to allow overriding. [#65564](https://github.com/ClickHouse/ClickHouse/pull/65564) ([Azat Khuzhin](https://github.com/azat)).
+* Introduced `use_same_password_for_base_backup` settings for `BACKUP` and `RESTORE` queries, allowing to create and restore incremental backups to/from password protected archives. [#66214](https://github.com/ClickHouse/ClickHouse/pull/66214) ([Samuele](https://github.com/sguerrini97)).
+* Ignore `async_load_databases` for `ATTACH` query (previously it was possible for ATTACH to return before the tables had been attached). [#66240](https://github.com/ClickHouse/ClickHouse/pull/66240) ([Azat Khuzhin](https://github.com/azat)).
+* Added logs and metrics for rejected connections (where there are not enough resources). [#66410](https://github.com/ClickHouse/ClickHouse/pull/66410) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Support proper `UUID` type for MongoDB engine. [#66671](https://github.com/ClickHouse/ClickHouse/pull/66671) ([Azat Khuzhin](https://github.com/azat)).
+* Add replication lag and recovery time metrics. [#66703](https://github.com/ClickHouse/ClickHouse/pull/66703) ([Miсhael Stetsyuk](https://github.com/mstetsyuk)).
+* Add `DiskS3NoSuchKeyErrors` metric. [#66704](https://github.com/ClickHouse/ClickHouse/pull/66704) ([Miсhael Stetsyuk](https://github.com/mstetsyuk)).
+* Ensure the `COMMENT` clause works for all table engines. [#66832](https://github.com/ClickHouse/ClickHouse/pull/66832) ([Joe Lynch](https://github.com/joelynch)).
+* Function `mapFromArrays` now accepts `Map(K, V)` as first argument, for example: `SELECT mapFromArrays(map('a', 4, 'b', 4), ['aa', 'bb'])` now works and returns `{('a',4):'aa',('b',4):'bb'}`. Also, if the 1st argument is an Array, it can now also be of type `Array(Nullable(T))` or `Array(LowCardinality(Nullable(T)))` as long as the actual array values are not `NULL`. [#67103](https://github.com/ClickHouse/ClickHouse/pull/67103) ([李扬](https://github.com/taiyang-li)).
+* Read configuration for `clickhouse-local` from `~/.clickhouse-local`. [#67135](https://github.com/ClickHouse/ClickHouse/pull/67135) ([Azat Khuzhin](https://github.com/azat)).
+* Rename setting `input_format_orc_read_use_writer_time_zone` to `input_format_orc_reader_timezone` and allow the user to set the reader timezone. [#67175](https://github.com/ClickHouse/ClickHouse/pull/67175) ([kevinyhzou](https://github.com/KevinyhZou)).
+* Decrease level of the `Socket is not connected` error when HTTP connection immediately reset by peer after connecting, close [#34218](https://github.com/ClickHouse/ClickHouse/issues/34218). [#67177](https://github.com/ClickHouse/ClickHouse/pull/67177) ([vdimir](https://github.com/vdimir)).
+* Add ability to load dashboards for `system.dashboards` from config (once set, they overrides the default dashboards preset). [#67232](https://github.com/ClickHouse/ClickHouse/pull/67232) ([Azat Khuzhin](https://github.com/azat)).
+* The window functions in SQL are traditionally in snake case. ClickHouse uses `camelCase`, so new aliases `denseRank()` and `percentRank()` have been created. These new functions can be called the exact same as the original `dense_rank()` and `percent_rank()` functions. Both snake case and camelCase syntaxes remain usable. A new test for each of the functions has been added as well. This closes [#67042](https://github.com/ClickHouse/ClickHouse/issues/67042) . [#67334](https://github.com/ClickHouse/ClickHouse/pull/67334) ([Peter Nguyen](https://github.com/petern48)).
+* Autodetect configuration file format if is not `.xml`, `.yml` or `.yaml`. If the file begins with &lt; it might be XML, otherwise it might be YAML. It is useful when providing a configuration file from a pipe: `clickhouse-server --config-file <(echo "hello: world")`. [#67391](https://github.com/ClickHouse/ClickHouse/pull/67391) ([sakulali](https://github.com/sakulali)).
+* Functions `formatDateTime` and `formatDateTimeInJodaSyntax` now treat their format parameter as optional. If it is not specified, format strings `%Y-%m-%d %H:%i:%s` and `yyyy-MM-dd HH:mm:ss` are assumed. Example: `SELECT parseDateTime('2021-01-04 23:12:34')` now returns DateTime value `2021-01-04 23:12:34` (previously, this threw an exception). [#67399](https://github.com/ClickHouse/ClickHouse/pull/67399) ([Robert Schulze](https://github.com/rschu1ze)).
+* Automatically retry Keeper requests in KeeperMap if they happen because of timeout or connection loss. [#67448](https://github.com/ClickHouse/ClickHouse/pull/67448) ([Antonio Andelic](https://github.com/antonio2368)).
+* Add `-no-pie` to Aarch64 Linux builds to allow proper introspection and symbolizing of stacktraces after a ClickHouse restart. [#67916](https://github.com/ClickHouse/ClickHouse/pull/67916) ([filimonov](https://github.com/filimonov)).
+* Added profile events for merges and mutations for better introspection. [#68015](https://github.com/ClickHouse/ClickHouse/pull/68015) ([Anton Popov](https://github.com/CurtizJ)).
+* Fix settings and `current_database` in `system.processes` for async BACKUP/RESTORE. [#68163](https://github.com/ClickHouse/ClickHouse/pull/68163) ([Azat Khuzhin](https://github.com/azat)).
+* Remove unnecessary logs for non-replicated `MergeTree`. [#68238](https://github.com/ClickHouse/ClickHouse/pull/68238) ([Daniil Ivanik](https://github.com/divanik)).
+
+#### Build/Testing/Packaging Improvement
+* Integration tests flaky check will not run each test case multiple times to find more issues in tests and make them more reliable. It is using `pytest-repeat` library to run test case multiple times for the same environment. It is important to cleanup tables and other entities in the end of a test case to pass. Repeating works much faster than several pytest runs as it starts necessary containers only once. [#66986](https://github.com/ClickHouse/ClickHouse/pull/66986) ([Ilya Yatsishin](https://github.com/qoega)).
+* Unblock the usage of CLion with ClickHouse. In previous versions, CLion freezed for a minute on every keypress. This closes [#66994](https://github.com/ClickHouse/ClickHouse/issues/66994). [#66995](https://github.com/ClickHouse/ClickHouse/pull/66995) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* getauxval: avoid a crash under a sanitizer re-exec due to high ASLR entropy in newer Linux kernels. [#67081](https://github.com/ClickHouse/ClickHouse/pull/67081) ([Raúl Marín](https://github.com/Algunenano)).
+* Some parts of client code are extracted to a single file and highest possible level optimization is applied to them even for debug builds. This closes: [#65745](https://github.com/ClickHouse/ClickHouse/issues/65745). [#67215](https://github.com/ClickHouse/ClickHouse/pull/67215) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
+
+#### Bug Fix
+* Only relevant to the experimental Variant data type. Fix crash with Variant + AggregateFunction type. [#67122](https://github.com/ClickHouse/ClickHouse/pull/67122) ([Kruglov Pavel](https://github.com/Avogar)).
+* Fix crash in DistributedAsyncInsert when connection is empty. [#67219](https://github.com/ClickHouse/ClickHouse/pull/67219) ([Pablo Marcos](https://github.com/pamarcos)).
+* Fix crash of `uniq` and `uniqTheta ` with `tuple()` argument. Closes [#67303](https://github.com/ClickHouse/ClickHouse/issues/67303). [#67306](https://github.com/ClickHouse/ClickHouse/pull/67306) ([flynn](https://github.com/ucasfl)).
+* Fixes [#66026](https://github.com/ClickHouse/ClickHouse/issues/66026). Avoid unresolved table function arguments traversal in `ReplaceTableNodeToDummyVisitor`. [#67522](https://github.com/ClickHouse/ClickHouse/pull/67522) ([Dmitry Novik](https://github.com/novikd)).
+* Fix potential stack overflow in `JSONMergePatch` function. Renamed this function from `jsonMergePatch` to `JSONMergePatch` because the previous name was wrong. The previous name is still kept for compatibility. Improved diagnostic of errors in the function. This closes [#67304](https://github.com/ClickHouse/ClickHouse/issues/67304). [#67756](https://github.com/ClickHouse/ClickHouse/pull/67756) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fixed a NULL pointer dereference, triggered by a specially crafted query, that crashed the server via hopEnd, hopStart, tumbleEnd, and tumbleStart. [#68098](https://github.com/ClickHouse/ClickHouse/pull/68098) ([Salvatore Mesoraca](https://github.com/aiven-sal)).
+* Fixed `Not-ready Set` in some system tables when filtering using subqueries. [#66018](https://github.com/ClickHouse/ClickHouse/pull/66018) ([Michael Kolupaev](https://github.com/al13n321)).
+* Fixed reading of subcolumns after `ALTER ADD COLUMN` query. [#66243](https://github.com/ClickHouse/ClickHouse/pull/66243) ([Anton Popov](https://github.com/CurtizJ)).
+* Fix boolean literals in query sent to external database (for engines like `PostgreSQL`). [#66282](https://github.com/ClickHouse/ClickHouse/pull/66282) ([vdimir](https://github.com/vdimir)).
+* Fix formatting of query with aliased JOIN ON expression, e.g. `... JOIN t2 ON (x = y) AS e ORDER BY x` should be formatted as `... JOIN t2 ON ((x = y) AS e) ORDER BY x`. [#66312](https://github.com/ClickHouse/ClickHouse/pull/66312) ([vdimir](https://github.com/vdimir)).
+* Fix cluster() for inter-server secret (preserve initial user as before). [#66364](https://github.com/ClickHouse/ClickHouse/pull/66364) ([Azat Khuzhin](https://github.com/azat)).
+* Fix possible runtime error while converting Array field with nulls to Array(Variant). [#66727](https://github.com/ClickHouse/ClickHouse/pull/66727) ([Kruglov Pavel](https://github.com/Avogar)).
+* Fix for occasional deadlock in Context::getDDLWorker. [#66843](https://github.com/ClickHouse/ClickHouse/pull/66843) ([Alexander Gololobov](https://github.com/davenger)).
+* Fix creating KeeperMap table after an incomplete drop. [#66865](https://github.com/ClickHouse/ClickHouse/pull/66865) ([Antonio Andelic](https://github.com/antonio2368)).
+* Fix broken part error while restoring to a `s3_plain_rewritable` disk. [#66881](https://github.com/ClickHouse/ClickHouse/pull/66881) ([Vitaly Baranov](https://github.com/vitlibar)).
+* In rare cases ClickHouse could consider parts as broken because of some unexpected projections on disk. Now it's fixed. [#66898](https://github.com/ClickHouse/ClickHouse/pull/66898) ([alesapin](https://github.com/alesapin)).
+* Fix invalid format detection in schema inference that could lead to logical error Format {} doesn't support schema inference. [#66899](https://github.com/ClickHouse/ClickHouse/pull/66899) ([Kruglov Pavel](https://github.com/Avogar)).
+* Fix possible deadlock on query cancel with parallel replicas. [#66905](https://github.com/ClickHouse/ClickHouse/pull/66905) ([Nikita Taranov](https://github.com/nickitat)).
+* Forbid create as select even when database_replicated_allow_heavy_create is set. It was unconditionally forbidden in 23.12 and accidentally allowed under the setting in unreleased 24.7. [#66980](https://github.com/ClickHouse/ClickHouse/pull/66980) ([vdimir](https://github.com/vdimir)).
+* Reading from the `numbers` could wrongly throw an exception when the `max_rows_to_read` limit was set. This closes [#66992](https://github.com/ClickHouse/ClickHouse/issues/66992). [#66996](https://github.com/ClickHouse/ClickHouse/pull/66996) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Add proper type conversion to lagInFrame and leadInFrame window functions - fixes msan test. [#67091](https://github.com/ClickHouse/ClickHouse/pull/67091) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
+* TRUNCATE DATABASE used to stop replication as if it was a DROP DATABASE query, it's fixed. [#67129](https://github.com/ClickHouse/ClickHouse/pull/67129) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Use a separate client context in `clickhouse-local`. [#67133](https://github.com/ClickHouse/ClickHouse/pull/67133) ([Vitaly Baranov](https://github.com/vitlibar)).
+* Fix error `Cannot convert column because it is non constant in source stream but must be constant in result.` for a query that reads from the `Merge` table over the `Distriburted` table with one shard. [#67146](https://github.com/ClickHouse/ClickHouse/pull/67146) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Correct behavior of `ORDER BY all` with disabled `enable_order_by_all` and parallel replicas (distributed queries as well). [#67153](https://github.com/ClickHouse/ClickHouse/pull/67153) ([Igor Nikonov](https://github.com/devcrafter)).
+* Fix wrong usage of input_format_max_bytes_to_read_for_schema_inference in schema cache. [#67157](https://github.com/ClickHouse/ClickHouse/pull/67157) ([Kruglov Pavel](https://github.com/Avogar)).
+* Fix the memory leak for count distinct, when exception issued during group by single nullable key. [#67171](https://github.com/ClickHouse/ClickHouse/pull/67171) ([Jet He](https://github.com/compasses)).
+* Fix an error in optimization which converts OUTER JOIN to INNER JOIN. This closes [#67156](https://github.com/ClickHouse/ClickHouse/issues/67156). This closes [#66447](https://github.com/ClickHouse/ClickHouse/issues/66447). The bug was introduced in https://github.com/ClickHouse/ClickHouse/pull/62907. [#67178](https://github.com/ClickHouse/ClickHouse/pull/67178) ([Maksim Kita](https://github.com/kitaisreal)).
+* Fix error `Conversion from AggregateFunction(name, Type) to AggregateFunction(name, Nullable(Type)) is not supported`. The bug was caused by the `optimize_rewrite_aggregate_function_with_if` optimization. Fixes [#67112](https://github.com/ClickHouse/ClickHouse/issues/67112). [#67229](https://github.com/ClickHouse/ClickHouse/pull/67229) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Fix hung query when using empty tuple as lhs of function IN. [#67295](https://github.com/ClickHouse/ClickHouse/pull/67295) ([Duc Canh Le](https://github.com/canhld94)).
+* It was possible to create a very deep nested JSON data that triggered stack overflow while skipping unknown fields. This closes [#67292](https://github.com/ClickHouse/ClickHouse/issues/67292). [#67324](https://github.com/ClickHouse/ClickHouse/pull/67324) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix attaching ReplicatedMergeTree table after exception during startup. [#67360](https://github.com/ClickHouse/ClickHouse/pull/67360) ([Antonio Andelic](https://github.com/antonio2368)).
+* Fix segfault caused by incorrectly detaching from thread group in `Aggregator`. [#67385](https://github.com/ClickHouse/ClickHouse/pull/67385) ([Antonio Andelic](https://github.com/antonio2368)).
+* Fix one more case when a non-deterministic function is specified in PK. [#67395](https://github.com/ClickHouse/ClickHouse/pull/67395) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Fixed `bloom_filter` index breaking queries with mildly weird conditions like `(k=2)=(k=2)` or `has([1,2,3], k)`. [#67423](https://github.com/ClickHouse/ClickHouse/pull/67423) ([Michael Kolupaev](https://github.com/al13n321)).
+* Correctly parse file name/URI containing `::` if it's not an archive. [#67433](https://github.com/ClickHouse/ClickHouse/pull/67433) ([Antonio Andelic](https://github.com/antonio2368)).
+* Fix wait for tasks in ~WriteBufferFromS3 in case WriteBuffer was cancelled. [#67459](https://github.com/ClickHouse/ClickHouse/pull/67459) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Protect temporary part directories from removing during RESTORE. [#67491](https://github.com/ClickHouse/ClickHouse/pull/67491) ([Vitaly Baranov](https://github.com/vitlibar)).
+* Fix execution of nested short-circuit functions. [#67520](https://github.com/ClickHouse/ClickHouse/pull/67520) ([Kruglov Pavel](https://github.com/Avogar)).
+* Fix `Logical error: Expected the argument №N of type T to have X rows, but it has 0`. The error could happen in a remote query with constant expression in `GROUP BY` (with a new analyzer). [#67536](https://github.com/ClickHouse/ClickHouse/pull/67536) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Fix join on tuple with NULLs: Some queries with the new analyzer and `NULL` inside the tuple in the `JOIN ON` section returned incorrect results. [#67538](https://github.com/ClickHouse/ClickHouse/pull/67538) ([vdimir](https://github.com/vdimir)).
+* Fix redundant reschedule of FileCache::freeSpaceRatioKeepingThreadFunc() in case of full non-evictable cache. [#67540](https://github.com/ClickHouse/ClickHouse/pull/67540) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Fix inserting into stream like engines (Kafka, RabbitMQ, NATS) through HTTP interface. [#67554](https://github.com/ClickHouse/ClickHouse/pull/67554) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Fix for function `toStartOfWeek` which returned the wrong result with a small `DateTime64` value. [#67558](https://github.com/ClickHouse/ClickHouse/pull/67558) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
+* Fix creation of view with recursive CTE. [#67587](https://github.com/ClickHouse/ClickHouse/pull/67587) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
+* Fix `Logical error: 'file_offset_of_buffer_end <= read_until_position'` in filesystem cache. Closes [#57508](https://github.com/ClickHouse/ClickHouse/issues/57508). [#67623](https://github.com/ClickHouse/ClickHouse/pull/67623) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Fixes [#62282](https://github.com/ClickHouse/ClickHouse/issues/62282). Removed the call to `convertFieldToString()` and added datatype specific serialization code. Parameterized view substitution was broken for multiple datatypes when parameter value was a function or expression returning datatype instance. [#67654](https://github.com/ClickHouse/ClickHouse/pull/67654) ([Shankar](https://github.com/shiyer7474)).
+* Fix crash on `percent_rank`. `percent_rank`'s default frame type is changed to `range unbounded preceding and unbounded following`. `IWindowFunction`'s default window frame is considered and now window functions without window frame definition in sql can be put into different `WindowTransfomer`s properly. [#67661](https://github.com/ClickHouse/ClickHouse/pull/67661) ([lgbo](https://github.com/lgbo-ustc)).
+* Fix reloading SQL UDFs with UNION. Previously, restarting the server could make UDF invalid. [#67665](https://github.com/ClickHouse/ClickHouse/pull/67665) ([Antonio Andelic](https://github.com/antonio2368)).
+* Fix possible logical error "Unexpected return type from if" with experimental Variant type and enabled setting `use_variant_as_common_type ` in function if with Tuples and Maps. [#67687](https://github.com/ClickHouse/ClickHouse/pull/67687) ([Kruglov Pavel](https://github.com/Avogar)).
+* Due to a bug in Linux Kernel, a query can hung in `TimerDescriptor::drain`. This closes [#37686](https://github.com/ClickHouse/ClickHouse/issues/37686). [#67702](https://github.com/ClickHouse/ClickHouse/pull/67702) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix completion of `RESTORE ON CLUSTER` command. [#67720](https://github.com/ClickHouse/ClickHouse/pull/67720) ([Vitaly Baranov](https://github.com/vitlibar)).
+* Fix dictionary hang in case of CANNOT_SCHEDULE_TASK while loading. [#67751](https://github.com/ClickHouse/ClickHouse/pull/67751) ([Azat Khuzhin](https://github.com/azat)).
+* Queries like `SELECT count() FROM t WHERE cast(c = 1 or c = 9999 AS Bool) SETTINGS use_skip_indexes=1` with bloom filter indexes on `c` now work correctly. [#67781](https://github.com/ClickHouse/ClickHouse/pull/67781) ([jsc0218](https://github.com/jsc0218)).
+* Fix wrong aggregation result in some queries with aggregation without keys and filter, close [#67419](https://github.com/ClickHouse/ClickHouse/issues/67419). [#67804](https://github.com/ClickHouse/ClickHouse/pull/67804) ([vdimir](https://github.com/vdimir)).
+* Validate experimental/suspicious data types in ALTER ADD/MODIFY COLUMN. [#67911](https://github.com/ClickHouse/ClickHouse/pull/67911) ([Kruglov Pavel](https://github.com/Avogar)).
+* Fix DateTime64 parsing after constant folding in distributed queries, close [#66773](https://github.com/ClickHouse/ClickHouse/issues/66773). [#67920](https://github.com/ClickHouse/ClickHouse/pull/67920) ([vdimir](https://github.com/vdimir)).
+* Fix wrong `count()` result when there is non-deterministic function in predicate. [#67922](https://github.com/ClickHouse/ClickHouse/pull/67922) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Fixed the calculation of the maximum thread soft limit in containerized environments where the usable CPU count is limited. [#67963](https://github.com/ClickHouse/ClickHouse/pull/67963) ([Robert Schulze](https://github.com/rschu1ze)).
+* Now ClickHouse doesn't consider part as broken if projection doesn't exist on disk but exists in `checksums.txt`. [#68003](https://github.com/ClickHouse/ClickHouse/pull/68003) ([alesapin](https://github.com/alesapin)).
+* Fixed skipping of untouched parts in mutations with new analyzer. Previously with enabled analyzer data in part could be rewritten by mutation even if mutation doesn't affect this part according to predicate. [#68052](https://github.com/ClickHouse/ClickHouse/pull/68052) ([Anton Popov](https://github.com/CurtizJ)).
+* Removes an incorrect optimization to remove sorting in subqueries that use `OFFSET`. Fixes [#67906](https://github.com/ClickHouse/ClickHouse/issues/67906). [#68099](https://github.com/ClickHouse/ClickHouse/pull/68099) ([Graham Campbell](https://github.com/GrahamCampbell)).
+* Attempt to fix `Block structure mismatch in AggregatingStep stream: different types` for aggregate projection optimization. [#68107](https://github.com/ClickHouse/ClickHouse/pull/68107) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Try fix postgres crash when query is cancelled. [#68288](https://github.com/ClickHouse/ClickHouse/pull/68288) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Fix missing sync replica mode in query `SYSTEM SYNC REPLICA`. [#68326](https://github.com/ClickHouse/ClickHouse/pull/68326) ([Duc Canh Le](https://github.com/canhld94)).
+
+
 ### <a id="247"></a> ClickHouse release 24.7, 2024-07-30
 
 #### Backward Incompatible Change

CMakeLists.txt

@@ -322,17 +322,21 @@ if (DISABLE_OMIT_FRAME_POINTER)
     set (CMAKE_ASM_FLAGS_ADD "${CMAKE_ASM_FLAGS_ADD} -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer")
 endif()
 
+# Before you start hating your debugger because it refuses to show variables ('<optimized out>'), try building with -DDEBUG_O_LEVEL="0"
+# https://stackoverflow.com/questions/63386189/whats-the-difference-between-a-compilers-o0-option-and-og-option/63386263#63386263
+set(DEBUG_O_LEVEL "g" CACHE STRING "The -Ox level used for debug builds")
+
 set (CMAKE_CXX_FLAGS                     "${CMAKE_CXX_FLAGS} ${COMPILER_FLAGS} ${CMAKE_CXX_FLAGS_ADD}")
 set (CMAKE_CXX_FLAGS_RELWITHDEBINFO      "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -O3 ${DEBUG_INFO_FLAGS} ${CMAKE_CXX_FLAGS_ADD}")
-set (CMAKE_CXX_FLAGS_DEBUG               "${CMAKE_CXX_FLAGS_DEBUG} -Og ${DEBUG_INFO_FLAGS} ${CMAKE_CXX_FLAGS_ADD}")
+set (CMAKE_CXX_FLAGS_DEBUG               "${CMAKE_CXX_FLAGS_DEBUG} -O${DEBUG_O_LEVEL} ${DEBUG_INFO_FLAGS} ${CMAKE_CXX_FLAGS_ADD}")
 
 set (CMAKE_C_FLAGS                       "${CMAKE_C_FLAGS} ${COMPILER_FLAGS} ${CMAKE_C_FLAGS_ADD}")
 set (CMAKE_C_FLAGS_RELWITHDEBINFO        "${CMAKE_C_FLAGS_RELWITHDEBINFO} -O3 ${DEBUG_INFO_FLAGS} ${CMAKE_C_FLAGS_ADD}")
-set (CMAKE_C_FLAGS_DEBUG                 "${CMAKE_C_FLAGS_DEBUG} -Og ${DEBUG_INFO_FLAGS} ${CMAKE_C_FLAGS_ADD}")
+set (CMAKE_C_FLAGS_DEBUG                 "${CMAKE_C_FLAGS_DEBUG} -O${DEBUG_O_LEVEL} ${DEBUG_INFO_FLAGS} ${CMAKE_C_FLAGS_ADD}")
 
 set (CMAKE_ASM_FLAGS                     "${CMAKE_ASM_FLAGS} ${COMPILER_FLAGS} ${CMAKE_ASM_FLAGS_ADD}")
 set (CMAKE_ASM_FLAGS_RELWITHDEBINFO      "${CMAKE_ASM_FLAGS_RELWITHDEBINFO} -O3 ${DEBUG_INFO_FLAGS} ${CMAKE_ASM_FLAGS_ADD}")
-set (CMAKE_ASM_FLAGS_DEBUG               "${CMAKE_ASM_FLAGS_DEBUG} -Og ${DEBUG_INFO_FLAGS} ${CMAKE_ASM_FLAGS_ADD}")
+set (CMAKE_ASM_FLAGS_DEBUG               "${CMAKE_ASM_FLAGS_DEBUG} -O${DEBUG_O_LEVEL} ${DEBUG_INFO_FLAGS} ${CMAKE_ASM_FLAGS_ADD}")
 
 if (OS_DARWIN)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
@@ -601,7 +605,9 @@ if (NATIVE_BUILD_TARGETS
 
     execute_process(
         COMMAND ${CMAKE_COMMAND} -E make_directory "${NATIVE_BUILD_DIR}"
-        COMMAND_ECHO STDOUT)
+        COMMAND_ECHO STDOUT
+        COMMAND_ERROR_IS_FATAL ANY
+    )
 
     execute_process(
         COMMAND ${CMAKE_COMMAND}
@@ -613,9 +619,13 @@ if (NATIVE_BUILD_TARGETS
             "-DENABLE_CLICKHOUSE_SELF_EXTRACTING=${ENABLE_CLICKHOUSE_SELF_EXTRACTING}"
         ${PROJECT_SOURCE_DIR}
         WORKING_DIRECTORY "${NATIVE_BUILD_DIR}"
-        COMMAND_ECHO STDOUT)
+        COMMAND_ECHO STDOUT
+        COMMAND_ERROR_IS_FATAL ANY
+    )
 
     execute_process(
         COMMAND ${CMAKE_COMMAND} --build "${NATIVE_BUILD_DIR}" --target ${NATIVE_BUILD_TARGETS}
-        COMMAND_ECHO STDOUT)
+        COMMAND_ECHO STDOUT
+        COMMAND_ERROR_IS_FATAL ANY
+    )
 endif ()

PreLoad.cmake

@@ -51,8 +51,14 @@ if (NOT "$ENV{CFLAGS}" STREQUAL ""
 endif()
 
 # Default toolchain - this is needed to avoid dependency on OS files.
-execute_process(COMMAND uname -s OUTPUT_VARIABLE OS)
-execute_process(COMMAND uname -m OUTPUT_VARIABLE ARCH)
+execute_process(COMMAND uname -s
+    OUTPUT_VARIABLE OS
+    COMMAND_ERROR_IS_FATAL ANY
+)
+execute_process(COMMAND uname -m
+    OUTPUT_VARIABLE ARCH
+    COMMAND_ERROR_IS_FATAL ANY
+)
 
 # By default, prefer clang on Linux
 # But note, that you still may change the compiler with -DCMAKE_C_COMPILER/-DCMAKE_CXX_COMPILER.

README.md

@@ -34,17 +34,41 @@ curl https://clickhouse.com/ | sh
 
 Every month we get together with the community (users, contributors, customers, those interested in learning more about ClickHouse) to discuss what is coming in the latest release. If you are interested in sharing what you've built on ClickHouse, let us know.
 
-* [v24.8 Community Call](https://clickhouse.com/company/events/v24-8-community-release-call) - August 29
+* [v24.9 Community Call](https://clickhouse.com/company/events/v24-9-community-release-call) - September 26
 
 ## Upcoming Events
 
 Keep an eye out for upcoming meetups and events around the world. Somewhere else you want us to be? Please feel free to reach out to tyler `<at>` clickhouse `<dot>` com. You can also peruse [ClickHouse Events](https://clickhouse.com/company/news-events) for a list of all upcoming trainings, meetups, speaking engagements, etc.
 
-* MORE COMING SOON!
+The following upcoming meetups are featuring creator of ClickHouse & CTO, Alexey Milovidov:
+
+* [ClickHouse Guangzhou User Group Meetup](https://mp.weixin.qq.com/s/GSvo-7xUoVzCsuUvlLTpCw) - August 25
+* [San Francisco Meetup (Cloudflare)](https://www.meetup.com/clickhouse-silicon-valley-meetup-group/events/302540575) - September 5
+* [Raleigh Meetup (Deutsche Bank)](https://www.meetup.com/triangletechtalks/events/302723486/) - September 9
+* [New York Meetup (Rokt)](https://www.meetup.com/clickhouse-new-york-user-group/events/302575342) - September 10
+* [Chicago Meetup (Jump Capital)](https://lu.ma/43tvmrfw) - September 12
+
+Other upcoming meetups
+* [Seattle Meetup (Statsig)](https://www.meetup.com/clickhouse-seattle-user-group/events/302518075/) - August 27
+* [Melbourne Meetup](https://www.meetup.com/clickhouse-australia-user-group/events/302732666/) - August 27
+* [Sydney Meetup](https://www.meetup.com/clickhouse-australia-user-group/events/302862966/) - September 5
+* [Zurich Meetup](https://www.meetup.com/clickhouse-switzerland-meetup-group/events/302267429/) - September 5
+* [Toronto Meetup (Shopify)](https://www.meetup.com/clickhouse-toronto-user-group/events/301490855/) - September 10
+* [Austin Meetup](https://www.meetup.com/clickhouse-austin-user-group/events/302558689/) - September 17
+* [London Meetup](https://www.meetup.com/clickhouse-london-user-group/events/302977267) - September 17
+* [Tel Aviv Meetup](https://www.meetup.com/clickhouse-meetup-israel/events/303095121) - September 22
+* [Madrid Meetup](https://www.meetup.com/clickhouse-spain-user-group/events/303096564/) - October 22
+* [Barcelona Meetup](https://www.meetup.com/clickhouse-spain-user-group/events/303096876/) - October 29
+* [Oslo Meetup](https://www.meetup.com/open-source-real-time-data-warehouse-real-time-analytics/events/302938622) - October 31
+* [Ghent Meetup](https://www.meetup.com/clickhouse-belgium-user-group/events/303049405/) - November 19
+* [Dubai Meetup](https://www.meetup.com/clickhouse-dubai-meetup-group/events/303096989/) - November 21
+* [Paris Meetup](https://www.meetup.com/clickhouse-france-user-group/events/303096434) - November 26
+
+
 
 ## Recent Recordings
 * **Recent Meetup Videos**: [Meetup Playlist](https://www.youtube.com/playlist?list=PL0Z2YDlm0b3iNDUzpY1S3L_iV4nARda_U) Whenever possible recordings of the ClickHouse Community Meetups are edited and presented as individual talks. Current featuring "Modern SQL in 2023", "Fast, Concurrent, and Consistent Asynchronous INSERTS in ClickHouse", and "Full-Text Indices: Design and Experiments"
-* **Recording available**: [**v24.4 Release Call**](https://www.youtube.com/watch?v=dtUqgcfOGmE) All the features of 24.4, one convenient video! Watch it now!
+* **Recording available**: [**v24.8 LTS Release Call**](https://www.youtube.com/watch?v=AeLmp2jc51k) All the features of 24.8 LTS, one convenient video! Watch it now!
   
  ## Interested in joining ClickHouse and making it your full-time job? 
   

SECURITY.md

@@ -14,25 +14,15 @@ The following versions of ClickHouse server are currently supported with securit
 
 | Version | Supported |
 |:-|:-|
+| 24.8 | ✔️ |
 | 24.7 | ✔️ |
 | 24.6 | ✔️ |
-| 24.5 | ✔️ |
+| 24.5 | ❌ |
 | 24.4 | ❌ |
 | 24.3 | ✔️ |
 | 24.2 | ❌ |
 | 24.1 | ❌ |
-| 23.12 | ❌ |
-| 23.11 | ❌ |
-| 23.10 | ❌ |
-| 23.9 | ❌ |
-| 23.8 | ✔️ |
-| 23.7 | ❌ |
-| 23.6 | ❌ |
-| 23.5 | ❌ |
-| 23.4 | ❌ |
-| 23.3 | ❌ |
-| 23.2 | ❌ |
-| 23.1 | ❌ |
+| 23.* | ❌ |
 | 22.* | ❌ |
 | 21.* | ❌ |
 | 20.* | ❌ |

base/base/CMakeLists.txt

@@ -1,4 +1,4 @@
-add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:${COVERAGE_FLAGS}>)
+add_compile_options("$<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:${COVERAGE_FLAGS}>")
 
 if (USE_CLANG_TIDY)
     set (CMAKE_CXX_CLANG_TIDY "${CLANG_TIDY_PATH}")
@@ -8,6 +8,8 @@ endif ()
 # when instantiated from JSON.cpp. Try again when libcxx(abi) and Clang are upgraded to 16.
 set (CMAKE_CXX_STANDARD 20)
 
+configure_file(GitHash.cpp.in GitHash.generated.cpp)
+
 set (SRCS
     argsToConfig.cpp
     cgroupsv2.cpp
@@ -33,6 +35,7 @@ set (SRCS
     safeExit.cpp
     throwError.cpp
     Numa.cpp
+    GitHash.generated.cpp
 )
 
 add_library (common ${SRCS})

base/base/cgroupsv2.cpp

@@ -27,27 +27,6 @@ bool cgroupsV2Enabled()
 #endif
 }
 
-bool cgroupsV2MemoryControllerEnabled()
-{
-#if defined(OS_LINUX)
-    chassert(cgroupsV2Enabled());
-    /// According to https://docs.kernel.org/admin-guide/cgroup-v2.html, file "cgroup.controllers" defines which controllers are available
-    /// for the current + child cgroups. The set of available controllers can be restricted from level to level using file
-    /// "cgroups.subtree_control". It is therefore sufficient to check the bottom-most nested "cgroup.controllers" file.
-    fs::path cgroup_dir = cgroupV2PathOfProcess();
-    if (cgroup_dir.empty())
-        return false;
-    std::ifstream controllers_file(cgroup_dir / "cgroup.controllers");
-    if (!controllers_file.is_open())
-        return false;
-    std::string controllers;
-    std::getline(controllers_file, controllers);
-    return controllers.find("memory") != std::string::npos;
-#else
-    return false;
-#endif
-}
-
 fs::path cgroupV2PathOfProcess()
 {
 #if defined(OS_LINUX)
@@ -71,3 +50,28 @@ fs::path cgroupV2PathOfProcess()
     return {};
 #endif
 }
+
+std::optional<std::string> getCgroupsV2PathContainingFile([[maybe_unused]] std::string_view file_name)
+{
+#if defined(OS_LINUX)
+    if (!cgroupsV2Enabled())
+        return {};
+
+    fs::path current_cgroup = cgroupV2PathOfProcess();
+    if (current_cgroup.empty())
+        return {};
+
+    /// Return the bottom-most nested file. If there is no such file at the current
+    /// level, try again at the parent level as settings are inherited.
+    while (current_cgroup != default_cgroups_mount.parent_path())
+    {
+        const auto path = current_cgroup / file_name;
+        if (fs::exists(path))
+            return {current_cgroup};
+        current_cgroup = current_cgroup.parent_path();
+    }
+    return {};
+#else
+    return {};
+#endif
+}

base/base/cgroupsv2.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <filesystem>
+#include <string_view>
 
 #if defined(OS_LINUX)
 /// I think it is possible to mount the cgroups hierarchy somewhere else (e.g. when in containers).
@@ -11,11 +12,11 @@ static inline const std::filesystem::path default_cgroups_mount = "/sys/fs/cgrou
 /// Is cgroups v2 enabled on the system?
 bool cgroupsV2Enabled();
 
-/// Is the memory controller of cgroups v2 enabled on the system?
-/// Assumes that cgroupsV2Enabled() is enabled.
-bool cgroupsV2MemoryControllerEnabled();
-
 /// Detects which cgroup v2 the process belongs to and returns the filesystem path to the cgroup.
 /// Returns an empty path the cgroup cannot be determined.
 /// Assumes that cgroupsV2Enabled() is enabled.
 std::filesystem::path cgroupV2PathOfProcess();
+
+/// Returns the most nested cgroup dir containing the specified file.
+/// If cgroups v2 is not enabled - returns an empty optional.
+std::optional<std::string> getCgroupsV2PathContainingFile([[maybe_unused]] std::string_view file_name);

base/base/getMemoryAmount.cpp

@@ -19,9 +19,6 @@ std::optional<uint64_t> getCgroupsV2MemoryLimit()
     if (!cgroupsV2Enabled())
         return {};
 
-    if (!cgroupsV2MemoryControllerEnabled())
-        return {};
-
     std::filesystem::path current_cgroup = cgroupV2PathOfProcess();
     if (current_cgroup.empty())
         return {};

base/poco/Net/include/Poco/Net/HTTPResponse.h

@@ -18,7 +18,9 @@
 #define Net_HTTPResponse_INCLUDED
 
 
+#include <map>
 #include <vector>
+
 #include "Poco/Net/HTTPCookie.h"
 #include "Poco/Net/HTTPMessage.h"
 #include "Poco/Net/Net.h"
@@ -180,6 +182,8 @@ namespace Net
         /// May throw an exception in case of a malformed
         /// Set-Cookie header.
 
+        void getHeaders(std::map<std::string, std::string> & headers) const;
+
         void write(std::ostream & ostr) const;
         /// Writes the HTTP response to the given
         /// output stream.

base/poco/Net/include/Poco/Net/HTTPServerSession.h

@@ -58,6 +58,10 @@ namespace Net
 
         void setKeepAliveTimeout(Poco::Timespan keepAliveTimeout);
 
+        size_t getKeepAliveTimeout() const { return _keepAliveTimeout.totalSeconds(); }
+
+        size_t getMaxKeepAliveRequests() const { return _maxKeepAliveRequests; }
+
     private:
         bool _firstRequest;
         Poco::Timespan _keepAliveTimeout;

base/poco/Net/src/HTTPResponse.cpp

@@ -209,6 +209,15 @@ void HTTPResponse::getCookies(std::vector<HTTPCookie>& cookies) const
 	}
 }
 
+void HTTPResponse::getHeaders(std::map<std::string, std::string> & headers) const
+{
+    headers.clear();
+    for (const auto & it : *this)
+    {
+        headers.emplace(it.first, it.second);
+    }
+}
+
 
 void HTTPResponse::write(std::ostream& ostr) const
 {

base/poco/Net/src/HTTPServerSession.cpp

@@ -19,11 +19,11 @@ namespace Poco {
 namespace Net {
 
 
-HTTPServerSession::HTTPServerSession(const StreamSocket& socket, HTTPServerParams::Ptr pParams):
-	HTTPSession(socket, pParams->getKeepAlive()),
-	_firstRequest(true),
-	_keepAliveTimeout(pParams->getKeepAliveTimeout()),
-	_maxKeepAliveRequests(pParams->getMaxKeepAliveRequests())
+HTTPServerSession::HTTPServerSession(const StreamSocket & socket, HTTPServerParams::Ptr pParams)
+    : HTTPSession(socket, pParams->getKeepAlive())
+    , _firstRequest(true)
+    , _keepAliveTimeout(pParams->getKeepAliveTimeout())
+    , _maxKeepAliveRequests(pParams->getMaxKeepAliveRequests())
 {
 	setTimeout(pParams->getTimeout());
 }
@@ -52,11 +52,12 @@ bool HTTPServerSession::hasMoreRequests()
 	}
 	else if (_maxKeepAliveRequests != 0 && getKeepAlive())
 	{
-		if (_maxKeepAliveRequests > 0) 
-			--_maxKeepAliveRequests;
-		return buffered() > 0 || socket().poll(_keepAliveTimeout, Socket::SELECT_READ);
-	}
-	else return false;
+        if (_maxKeepAliveRequests > 0)
+            --_maxKeepAliveRequests;
+        return buffered() > 0 || socket().poll(_keepAliveTimeout, Socket::SELECT_READ);
+    }
+    else
+        return false;
 }
 
 

base/poco/NetSSL_OpenSSL/src/SecureSocketImpl.cpp

@@ -311,6 +311,14 @@ int SecureSocketImpl::sendBytes(const void* buffer, int length, int flags)
 	while (mustRetry(rc, remaining_time));
 	if (rc <= 0)
 	{
+		// At this stage we still can have last not yet received SSL message containing SSL error
+		// so make a read to force SSL to process possible SSL error
+		if (SSL_get_error(_pSSL, rc) == SSL_ERROR_SYSCALL && SocketImpl::lastError() == POCO_ECONNRESET)
+		{
+			char c = 0;
+			SSL_read(_pSSL, &c, 1);
+		}
+
 		rc = handleError(rc);
 		if (rc == 0) throw SSLConnectionUnexpectedlyClosedException();
 	}

cmake/autogenerated_versions.txt

@@ -2,11 +2,11 @@
 
 # NOTE: VERSION_REVISION has nothing common with DBMS_TCP_PROTOCOL_VERSION,
 # only DBMS_TCP_PROTOCOL_VERSION should be incremented on protocol changes.
-SET(VERSION_REVISION 54489)
+SET(VERSION_REVISION 54490)
 SET(VERSION_MAJOR 24)
-SET(VERSION_MINOR 8)
+SET(VERSION_MINOR 9)
 SET(VERSION_PATCH 1)
-SET(VERSION_GITHASH 3f8b27d7accd2b5ec4afe7d0dd459115323304af)
-SET(VERSION_DESCRIBE v24.8.1.1-testing)
-SET(VERSION_STRING 24.8.1.1)
+SET(VERSION_GITHASH e02b434d2fc0c4fbee29ca675deab7474d274608)
+SET(VERSION_DESCRIBE v24.9.1.1-testing)
+SET(VERSION_STRING 24.9.1.1)
 # end of autochange

cmake/freebsd/default_libs.cmake

@@ -9,10 +9,18 @@ endif ()
 file(GLOB bprefix "/usr/local/llvm${COMPILER_VERSION_MAJOR}/lib/clang/${COMPILER_VERSION_MAJOR}/lib/${system_processor}-portbld-freebsd*/")
 message(STATUS "-Bprefix: ${bprefix}")
 
-execute_process(COMMAND ${CMAKE_CXX_COMPILER} -Bprefix=${bprefix} --print-file-name=libclang_rt.builtins-${system_processor}.a OUTPUT_VARIABLE BUILTINS_LIBRARY OUTPUT_STRIP_TRAILING_WHITESPACE)
+execute_process(COMMAND
+    ${CMAKE_CXX_COMPILER} -Bprefix=${bprefix} --print-file-name=libclang_rt.builtins-${system_processor}.a
+    OUTPUT_VARIABLE BUILTINS_LIBRARY
+    COMMAND_ERROR_IS_FATAL ANY
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
 # --print-file-name simply prints what you passed in case of nothing was resolved, so let's try one other possible option
 if (BUILTINS_LIBRARY STREQUAL "libclang_rt.builtins-${system_processor}.a")
-    execute_process(COMMAND ${CMAKE_CXX_COMPILER} -Bprefix=${bprefix} --print-file-name=libclang_rt.builtins.a OUTPUT_VARIABLE BUILTINS_LIBRARY OUTPUT_STRIP_TRAILING_WHITESPACE)
+    execute_process(COMMAND
+        ${CMAKE_CXX_COMPILER} -Bprefix=${bprefix} --print-file-name=libclang_rt.builtins.a
+        OUTPUT_VARIABLE BUILTINS_LIBRARY
+        COMMAND_ERROR_IS_FATAL ANY
+        OUTPUT_STRIP_TRAILING_WHITESPACE)
 endif()
 if (BUILTINS_LIBRARY STREQUAL "libclang_rt.builtins.a")
     message(FATAL_ERROR "libclang_rt.builtins had not been found")

cmake/freebsd/toolchain-x86_64.cmake

@@ -8,4 +8,7 @@ set (CMAKE_CXX_COMPILER_TARGET "x86_64-pc-freebsd11")
 set (CMAKE_ASM_COMPILER_TARGET "x86_64-pc-freebsd11")
 set (CMAKE_SYSROOT "${CMAKE_CURRENT_LIST_DIR}/../../contrib/sysroot/freebsd-x86_64")
 
+# dprintf is used in a patched version of replxx
+add_compile_definitions(_WITH_DPRINTF)
+
 set (CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)  # disable linkage check - it doesn't work in CMake

cmake/limit_jobs.cmake

@@ -42,19 +42,9 @@ endif ()
 # But use 2 parallel jobs, since:
 # - this is what llvm does
 # - and I've verfied that lld-11 does not use all available CPU time (in peak) while linking one binary
-if (CMAKE_BUILD_TYPE_UC STREQUAL "RELWITHDEBINFO" AND ENABLE_THINLTO)
-    if (ARCH_AARCH64)
-        # aarch64 builds start to often fail with OOMs (reason not yet clear), for now let's limit the concurrency
-        message(STATUS "ThinLTO provides its own parallel linking - limiting parallel link jobs to 1.")
-        set (PARALLEL_LINK_JOBS 1)
-        if (LINKER_NAME MATCHES "lld")
-            math(EXPR LTO_JOBS ${NUMBER_OF_LOGICAL_CORES}/4)
-            set (CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO} -Wl,--thinlto-jobs=${LTO_JOBS}")
-        endif()
-    elseif (PARALLEL_LINK_JOBS GREATER 2)
-        message(STATUS "ThinLTO provides its own parallel linking - limiting parallel link jobs to 2.")
-        set (PARALLEL_LINK_JOBS 2)
-    endif ()
+if (CMAKE_BUILD_TYPE_UC STREQUAL "RELWITHDEBINFO" AND ENABLE_THINLTO AND PARALLEL_LINK_JOBS GREATER 2)
+    message(STATUS "ThinLTO provides its own parallel linking - limiting parallel link jobs to 2.")
+    set (PARALLEL_LINK_JOBS 2)
 endif()
 
 message(STATUS "Building sub-tree with ${PARALLEL_COMPILE_JOBS} compile jobs and ${PARALLEL_LINK_JOBS} linker jobs (system: ${NUMBER_OF_LOGICAL_CORES} cores, ${TOTAL_PHYSICAL_MEMORY} MB RAM, 'OFF' means the native core count).")

cmake/linux/default_libs.cmake

@@ -5,7 +5,11 @@ set (DEFAULT_LIBS "-nodefaultlibs")
 
 # We need builtins from Clang's RT even without libcxx - for ubsan+int128.
 # See https://bugs.llvm.org/show_bug.cgi?id=16404
-execute_process (COMMAND ${CMAKE_CXX_COMPILER} --target=${CMAKE_CXX_COMPILER_TARGET} --print-libgcc-file-name --rtlib=compiler-rt OUTPUT_VARIABLE BUILTINS_LIBRARY OUTPUT_STRIP_TRAILING_WHITESPACE)
+execute_process (COMMAND
+    ${CMAKE_CXX_COMPILER} --target=${CMAKE_CXX_COMPILER_TARGET} --print-libgcc-file-name --rtlib=compiler-rt
+    OUTPUT_VARIABLE BUILTINS_LIBRARY
+    COMMAND_ERROR_IS_FATAL ANY
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
 
 # Apparently, in clang-19, the UBSan support library for C++ was moved out into ubsan_standalone_cxx.a, so we have to include both.
 if (SANITIZE STREQUAL undefined)

cmake/sanitize.cmake

@@ -57,8 +57,8 @@ option(WITH_COVERAGE "Instrumentation for code coverage with default implementat
 
 if (WITH_COVERAGE)
     message (STATUS "Enabled instrumentation for code coverage")
-    set(COVERAGE_FLAGS "SHELL:-fprofile-instr-generate -fcoverage-mapping")
-    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fprofile-instr-generate -fcoverage-mapping")
+    set (COVERAGE_FLAGS -fprofile-instr-generate -fcoverage-mapping)
+    set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fprofile-instr-generate -fcoverage-mapping")
 endif()
 
 option (SANITIZE_COVERAGE "Instrumentation for code coverage with custom callbacks" OFF)

cmake/tools.cmake

@@ -5,7 +5,11 @@ if (NOT CMAKE_CXX_COMPILER_ID MATCHES "Clang")
 endif ()
 
 # Print details to output
-execute_process(COMMAND ${CMAKE_CXX_COMPILER} --version OUTPUT_VARIABLE COMPILER_SELF_IDENTIFICATION OUTPUT_STRIP_TRAILING_WHITESPACE)
+execute_process(COMMAND ${CMAKE_CXX_COMPILER} --version
+    OUTPUT_VARIABLE COMPILER_SELF_IDENTIFICATION
+    COMMAND_ERROR_IS_FATAL ANY
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+)
 message (STATUS "Using compiler:\n${COMPILER_SELF_IDENTIFICATION}")
 
 # Require minimum compiler versions

cmake/utils.cmake

@@ -90,7 +90,10 @@ endfunction()
 
 # Function get_cmake_properties returns list of all propreties that cmake supports
 function(get_cmake_properties outvar)
-    execute_process(COMMAND cmake --help-property-list OUTPUT_VARIABLE cmake_properties)
+    execute_process(COMMAND cmake --help-property-list
+        OUTPUT_VARIABLE cmake_properties
+        COMMAND_ERROR_IS_FATAL ANY
+    )
     # Convert command output into a CMake list
     string(REGEX REPLACE ";" "\\\\;" cmake_properties "${cmake_properties}")
     string(REGEX REPLACE "\n" ";" cmake_properties "${cmake_properties}")

contrib/CMakeLists.txt

@@ -205,14 +205,12 @@ add_contrib (morton-nd-cmake morton-nd)
 if (ARCH_S390X)
     add_contrib(crc32-s390x-cmake crc32-s390x)
 endif()
-add_contrib (annoy-cmake annoy)
 
-option(ENABLE_USEARCH "Enable USearch (Approximate Neighborhood Search, HNSW) support" ${ENABLE_LIBRARIES})
+option(ENABLE_USEARCH "Enable USearch" ${ENABLE_LIBRARIES})
 if (ENABLE_USEARCH)
     add_contrib (FP16-cmake FP16)
-    add_contrib (robin-map-cmake robin-map)
     add_contrib (SimSIMD-cmake SimSIMD)
-    add_contrib (usearch-cmake usearch) # requires: FP16, robin-map, SimdSIMD
+    add_contrib (usearch-cmake usearch) # requires: FP16, SimdSIMD
 else ()
     message(STATUS "Not using USearch")
 endif ()

contrib/SimSIMD

@@ -1 +1 @@
-Subproject commit de2cb75b9e9e3389d5e1e51fd9f8ed151f3c17cf
+Subproject commit 91a76d1ac519b3b9dc8957734a3dabd985f00c26

contrib/annoy

@@ -1 +0,0 @@
-Subproject commit f2ac8e7b48f9a9cf676d3b58286e5455aba8e956

contrib/annoy-cmake/CMakeLists.txt

@@ -1,24 +0,0 @@
-option(ENABLE_ANNOY "Enable Annoy index support" ${ENABLE_LIBRARIES})
-
-# Annoy index should be disabled with undefined sanitizer. Because of memory storage optimizations
-# (https://github.com/ClickHouse/annoy/blob/9d8a603a4cd252448589e84c9846f94368d5a289/src/annoylib.h#L442-L463)
-# UBSan fails and leads to crash. Simmilar issue is already opened in Annoy repo
-# https://github.com/spotify/annoy/issues/456
-# Problem with aligment can lead to errors like
-# (https://stackoverflow.com/questions/46790550/c-undefined-behavior-strict-aliasing-rule-or-incorrect-alignment)
-# or will lead to crash on arm https://developer.arm.com/documentation/ka003038/latest
-# This issues should be resolved before annoy became non-experimental (--> setting "allow_experimental_annoy_index")
-if ((NOT ENABLE_ANNOY) OR (SANITIZE STREQUAL "undefined") OR (ARCH_AARCH64))
-    message (STATUS "Not using annoy")
-    return()
-endif()
-
-set(ANNOY_PROJECT_DIR "${ClickHouse_SOURCE_DIR}/contrib/annoy")
-set(ANNOY_SOURCE_DIR "${ANNOY_PROJECT_DIR}/src")
-
-add_library(_annoy INTERFACE)
-target_include_directories(_annoy SYSTEM INTERFACE ${ANNOY_SOURCE_DIR})
-
-add_library(ch_contrib::annoy ALIAS _annoy)
-target_compile_definitions(_annoy INTERFACE ENABLE_ANNOY)
-target_compile_definitions(_annoy INTERFACE ANNOYLIB_MULTITHREADED_BUILD)

contrib/aws

@@ -1 +1 @@
-Subproject commit 1c2946bfcb7f1e3ae0a858de0b59d4f1a7b4ccaf
+Subproject commit d5450d76abda556ce145ddabe7e0cc6a7644ec59

contrib/aws-crt-cpp

@@ -1 +1 @@
-Subproject commit f532d6abc0d2b0d8b5d6fe9e7c51eaedbe4afbd0
+Subproject commit e5aa45cacfdcda7719ead38760e7c61076f5745f

contrib/cctz-cmake/CMakeLists.txt

@@ -37,7 +37,9 @@ message(STATUS "Packaging with tzdata version: ${TZDATA_VERSION}")
 execute_process(COMMAND
     bash -c "cd ${TZDIR} && find * -type f -and ! -name '*.tab' -and ! -name 'localtime' | LC_ALL=C sort | paste -sd ';' -"
     OUTPUT_STRIP_TRAILING_WHITESPACE
-    OUTPUT_VARIABLE TIMEZONES)
+    OUTPUT_VARIABLE TIMEZONES
+    COMMAND_ERROR_IS_FATAL ANY
+)
 
 file(APPEND ${TIMEZONES_FILE} "// autogenerated by ClickHouse/contrib/cctz-cmake/CMakeLists.txt\n")
 file(APPEND ${TIMEZONES_FILE} "#include <incbin.h>\n")

contrib/google-protobuf-cmake/CMakeLists.txt

@@ -359,7 +359,9 @@ else ()
 
         execute_process(
             COMMAND mkdir -p ${PROTOC_BUILD_DIR}
-            COMMAND_ECHO STDOUT)
+            COMMAND_ECHO STDOUT
+            COMMAND_ERROR_IS_FATAL ANY
+        )
 
         execute_process(
             COMMAND ${CMAKE_COMMAND}
@@ -375,11 +377,15 @@ else ()
                 "-DABSL_ENABLE_INSTALL=0"
                 "${protobuf_source_dir}"
             WORKING_DIRECTORY "${PROTOC_BUILD_DIR}"
-            COMMAND_ECHO STDOUT)
+            COMMAND_ECHO STDOUT
+            COMMAND_ERROR_IS_FATAL ANY
+        )
 
         execute_process(
             COMMAND ${CMAKE_COMMAND} --build "${PROTOC_BUILD_DIR}"
-            COMMAND_ECHO STDOUT)
+            COMMAND_ECHO STDOUT
+            COMMAND_ERROR_IS_FATAL ANY
+        )
     endif ()
 
     add_executable(protoc IMPORTED GLOBAL)

contrib/grpc-cmake/CMakeLists.txt

@@ -51,8 +51,9 @@ if (NOT CMAKE_HOST_SYSTEM_NAME STREQUAL CMAKE_SYSTEM_NAME
     set(OPENSSL_SOURCE_DIR "${ClickHouse_SOURCE_DIR}/contrib/openssl-cmake")
 
     execute_process(
-      COMMAND mkdir -p ${OPENSSL_BUILD_DIR}
-      COMMAND_ECHO STDOUT
+        COMMAND mkdir -p ${OPENSSL_BUILD_DIR}
+        COMMAND_ECHO STDOUT
+        COMMAND_ERROR_IS_FATAL ANY
     )
 
     if (CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "amd64|x86_64")
@@ -89,15 +90,21 @@ if (NOT CMAKE_HOST_SYSTEM_NAME STREQUAL CMAKE_SYSTEM_NAME
             "-DClickHouse_SOURCE_DIR=${ClickHouse_SOURCE_DIR}"
             "${OPENSSL_SOURCE_DIR}"
         WORKING_DIRECTORY "${OPENSSL_BUILD_DIR}"
-        COMMAND_ECHO STDOUT)
+        COMMAND_ECHO STDOUT
+        COMMAND_ERROR_IS_FATAL ANY
+    )
 
     execute_process(
         COMMAND ${CMAKE_COMMAND} --build "${OPENSSL_BUILD_DIR}"
-        COMMAND_ECHO STDOUT)
+        COMMAND_ECHO STDOUT
+        COMMAND_ERROR_IS_FATAL ANY
+    )
 
     execute_process(
         COMMAND ${CMAKE_COMMAND} --install "${OPENSSL_BUILD_DIR}"
-        COMMAND_ECHO STDOUT)
+        COMMAND_ECHO STDOUT
+        COMMAND_ERROR_IS_FATAL ANY
+    )
 
     # It's not important on which file we depend, we just want to specify right order
     add_library(openssl_for_grpc STATIC IMPORTED GLOBAL)
@@ -108,8 +115,9 @@ if (NOT CMAKE_HOST_SYSTEM_NAME STREQUAL CMAKE_SYSTEM_NAME
     set (GRPC_CPP_PLUGIN_BUILD_DIR "${_gRPC_BINARY_DIR}/build")
 
     execute_process(
-      COMMAND mkdir -p ${GRPC_CPP_PLUGIN_BUILD_DIR}
-      COMMAND_ECHO STDOUT
+        COMMAND mkdir -p ${GRPC_CPP_PLUGIN_BUILD_DIR}
+        COMMAND_ECHO STDOUT
+        COMMAND_ERROR_IS_FATAL ANY
     )
 
     set(abseil_source_dir "${ClickHouse_SOURCE_DIR}/contrib/abseil-cpp")
@@ -140,11 +148,15 @@ if (NOT CMAKE_HOST_SYSTEM_NAME STREQUAL CMAKE_SYSTEM_NAME
             "-DgRPC_SSL_PROVIDER=package"
             "${_gRPC_SOURCE_DIR}"
         WORKING_DIRECTORY "${GRPC_CPP_PLUGIN_BUILD_DIR}"
-        COMMAND_ECHO STDOUT)
+        COMMAND_ECHO STDOUT
+        COMMAND_ERROR_IS_FATAL ANY
+    )
 
     execute_process(
         COMMAND ${CMAKE_COMMAND} --build "${GRPC_CPP_PLUGIN_BUILD_DIR}"
-        COMMAND_ECHO STDOUT)
+        COMMAND_ECHO STDOUT
+        COMMAND_ERROR_IS_FATAL ANY
+    )
 
     add_executable(grpc_cpp_plugin IMPORTED GLOBAL)
     set_target_properties (grpc_cpp_plugin PROPERTIES IMPORTED_LOCATION "${GRPC_CPP_PLUGIN_BUILD_DIR}/grpc_cpp_plugin")

contrib/icu

@@ -1 +1 @@
-Subproject commit 7750081bda4b3bc1768ae03849ec70f67ea10625
+Subproject commit 4216173eeeb39c1d4caaa54a68860e800412d273

contrib/libfiu

@@ -1 +1 @@
-Subproject commit b85edbde4cf974b1b40d27828a56f0505f4e2ee5
+Subproject commit a1290d8cd3d7b4541d6c976e0a54f572ac03f2a3

contrib/libprotobuf-mutator

@@ -1 +1 @@
-Subproject commit 1f95f8083066f5b38fd2db172e7e7f9aa7c49d2d
+Subproject commit b922c8ab9004ef9944982e4f165e2747b13223fa

contrib/libunwind

@@ -1 +1 @@
-Subproject commit a89d904befea07814628c6ce0b44083c4e149c62
+Subproject commit 601db0b0e03018c01710470a37703b618f9cf08b

contrib/replxx

@@ -1 +1 @@
-Subproject commit 5d04501f93a4fb7f0bb8b73b8f614bc986f9e25b
+Subproject commit 711c18e7f4d951255aa8b0851e5a55d5a5fb0ddb

contrib/robin-map

@@ -1 +0,0 @@
-Subproject commit 851a59e0e3063ee0e23089062090a73fd3de482d

contrib/robin-map-cmake/CMakeLists.txt

@@ -1 +0,0 @@
-# See contrib/usearch-cmake/CMakeLists.txt

contrib/usearch

@@ -1 +1 @@
-Subproject commit 30810452bec5d3d3aa0931bb5d761e2f09aa6356
+Subproject commit 7a8967cb442b08ca20c3dd781414378e65957d37

contrib/usearch-cmake/CMakeLists.txt

@@ -1,17 +1,22 @@
-set(USEARCH_PROJECT_DIR "${ClickHouse_SOURCE_DIR}/contrib/usearch")
-set(USEARCH_SOURCE_DIR "${USEARCH_PROJECT_DIR}/include")
-
 set(FP16_PROJECT_DIR "${ClickHouse_SOURCE_DIR}/contrib/FP16")
-set(ROBIN_MAP_PROJECT_DIR "${ClickHouse_SOURCE_DIR}/contrib/robin-map")
-set(SIMSIMD_PROJECT_DIR "${ClickHouse_SOURCE_DIR}/contrib/SimSIMD-map")
+set(SIMSIMD_PROJECT_DIR "${ClickHouse_SOURCE_DIR}/contrib/SimSIMD")
+set(USEARCH_PROJECT_DIR "${ClickHouse_SOURCE_DIR}/contrib/usearch")
 
 add_library(_usearch INTERFACE)
 
 target_include_directories(_usearch SYSTEM INTERFACE
     ${FP16_PROJECT_DIR}/include
-    ${ROBIN_MAP_PROJECT_DIR}/include
     ${SIMSIMD_PROJECT_DIR}/include
-    ${USEARCH_SOURCE_DIR})
+    ${USEARCH_PROJECT_DIR}/include)
+
+target_compile_definitions(_usearch INTERFACE USEARCH_USE_FP16LIB)
+
+# target_compile_definitions(_usearch INTERFACE USEARCH_USE_SIMSIMD)
+# ^^ simsimd is not enabled at the moment. Reasons:
+# - Vectorization is important for raw scans but not so much for HNSW. We use usearch only for HNSW.
+# - Simsimd does compile-time dispatch (choice of SIMD kernels determined by capabilities of the build machine) or dynamic dispatch (SIMD
+#   kernels chosen at runtime based on cpuid instruction). Since current builds are limited to SSE 4.2 (x86) and NEON (ARM), the speedup of
+#   the former would be moderate compared to AVX-512 / SVE. The latter is at the moment too fragile with respect to portability across x86
+#   and ARM machines ... certain conbinations of quantizations / distance functions / SIMD instructions are not implemented at the moment.
 
 add_library(ch_contrib::usearch ALIAS _usearch)
-target_compile_definitions(_usearch INTERFACE ENABLE_USEARCH)

docker/images.json

@@ -47,8 +47,7 @@
     "docker/test/stateful": {
         "name": "clickhouse/stateful-test",
         "dependent": [
-            "docker/test/stress",
-            "docker/test/upgrade"
+            "docker/test/stress"
         ]
     },
     "docker/test/unit": {
@@ -59,10 +58,6 @@
         "name": "clickhouse/stress-test",
         "dependent": []
     },
-    "docker/test/upgrade": {
-        "name": "clickhouse/upgrade-check",
-        "dependent": []
-    },
     "docker/test/integration/runner": {
         "name": "clickhouse/integration-tests-runner",
         "dependent": []

docker/keeper/Dockerfile

@@ -34,7 +34,7 @@ RUN arch=${TARGETARCH:-amd64} \
 # lts / testing / prestable / etc
 ARG REPO_CHANNEL="stable"
 ARG REPOSITORY="https://packages.clickhouse.com/tgz/${REPO_CHANNEL}"
-ARG VERSION="24.7.3.42"
+ARG VERSION="24.8.2.3"
 ARG PACKAGES="clickhouse-keeper"
 ARG DIRECT_DOWNLOAD_URLS=""
 

docker/packager/binary-builder/build.sh

@@ -108,7 +108,8 @@ if [ -n "$MAKE_DEB" ]; then
   bash -x /build/packages/build
 fi
 
-mv ./programs/clickhouse* /output || mv ./programs/*_fuzzer /output
+mv ./programs/clickhouse* /output ||:
+mv ./programs/*_fuzzer /output ||:
 [ -x ./programs/self-extracting/clickhouse ] && mv ./programs/self-extracting/clickhouse /output
 [ -x ./programs/self-extracting/clickhouse-stripped ] && mv ./programs/self-extracting/clickhouse-stripped /output
 [ -x ./programs/self-extracting/clickhouse-keeper ] && mv ./programs/self-extracting/clickhouse-keeper /output

docker/server/Dockerfile.alpine

@@ -32,7 +32,7 @@ RUN arch=${TARGETARCH:-amd64} \
 # lts / testing / prestable / etc
 ARG REPO_CHANNEL="stable"
 ARG REPOSITORY="https://packages.clickhouse.com/tgz/${REPO_CHANNEL}"
-ARG VERSION="24.7.3.42"
+ARG VERSION="24.8.2.3"
 ARG PACKAGES="clickhouse-client clickhouse-server clickhouse-common-static"
 ARG DIRECT_DOWNLOAD_URLS=""
 

docker/server/Dockerfile.ubuntu

@@ -28,7 +28,7 @@ RUN sed -i "s|http://archive.ubuntu.com|${apt_archive}|g" /etc/apt/sources.list
 
 ARG REPO_CHANNEL="stable"
 ARG REPOSITORY="deb [signed-by=/usr/share/keyrings/clickhouse-keyring.gpg] https://packages.clickhouse.com/deb ${REPO_CHANNEL} main"
-ARG VERSION="24.7.3.42"
+ARG VERSION="24.8.2.3"
 ARG PACKAGES="clickhouse-client clickhouse-server clickhouse-common-static"
 
 #docker-official-library:off

docker/test/fasttest/Dockerfile

@@ -93,6 +93,3 @@ RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 ENV COMMIT_SHA=''
 ENV PULL_REQUEST_NUMBER=''
 ENV COPY_CLICKHOUSE_BINARY_TO_OUTPUT=0
-
-COPY run.sh /
-CMD ["/bin/bash", "/run.sh"]

docker/test/integration/runner/requirements.txt

@@ -112,3 +112,5 @@ wadllib==1.3.6
 websocket-client==0.59.0
 wheel==0.37.1
 zipp==1.0.0
+deltalake==0.16.0
+

docker/test/performance-comparison/run.sh

@@ -13,7 +13,8 @@ entry="/usr/share/clickhouse-test/performance/scripts/entrypoint.sh"
 # https://www.kernel.org/doc/Documentation/filesystems/tmpfs.txt
 # Double-escaped backslashes are a tribute to the engineering wonder of docker --
 # it gives '/bin/sh: 1: [bash,: not found' otherwise.
-numactl --hardware
+echo > compare.log
+numactl --hardware | tee -a compare.log
 node=$(( RANDOM % $(numactl --hardware | sed -n 's/^.*available:\(.*\)nodes.*$/\1/p') ));
-echo Will bind to NUMA node $node;
+echo Will bind to NUMA node $node | tee -a compare.log
 numactl --cpunodebind=$node --membind=$node $entry

docker/test/sqllogic/Dockerfile

@@ -35,12 +35,8 @@ RUN mkdir -p /tmp/clickhouse-odbc-tmp \
 
 
 ENV TZ=Europe/Amsterdam
-ENV MAX_RUN_TIME=9000
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
 ARG sqllogic_test_repo="https://github.com/gregrahn/sqllogictest.git"
 
 RUN git clone --recursive ${sqllogic_test_repo}
-
-COPY run.sh /
-CMD ["/bin/bash", "/run.sh"]

docker/test/sqltest/Dockerfile

@@ -22,7 +22,6 @@ ARG sqltest_repo="https://github.com/elliotchance/sqltest/"
 RUN git clone ${sqltest_repo}
 
 ENV TZ=UTC
-ENV MAX_RUN_TIME=900
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
 COPY run.sh /

docker/test/stateful/Dockerfile

@@ -10,7 +10,3 @@ RUN apt-get update -y \
         npm \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/* /var/cache/debconf /tmp/*
-
-COPY create.sql /
-COPY run.sh /
-CMD ["/bin/bash", "/run.sh"]

docker/test/stateful/setup_minio.sh

@@ -1 +0,0 @@
-../stateless/setup_minio.sh

docker/test/stateless/Dockerfile

@@ -65,7 +65,6 @@ ENV TZ=Europe/Amsterdam
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
 ENV NUM_TRIES=1
-ENV MAX_RUN_TIME=0
 
 # Unrelated to vars in setup_minio.sh, but should be the same there
 # to have the same binaries for local running scenario
@@ -86,18 +85,6 @@ RUN curl -L --no-verbose -O 'https://archive.apache.org/dist/hadoop/common/hadoo
 ENV MINIO_ROOT_USER="clickhouse"
 ENV MINIO_ROOT_PASSWORD="clickhouse"
 ENV EXPORT_S3_STORAGE_POLICIES=1
-ENV CLICKHOUSE_GRPC_CLIENT="/usr/share/clickhouse-utils/grpc-client/clickhouse-grpc-client.py"
 
 RUN npm install -g azurite@3.30.0 \
     && npm install -g tslib && npm install -g node
-
-COPY run.sh /
-COPY setup_minio.sh /
-COPY setup_hdfs_minicluster.sh /
-COPY attach_gdb.lib /
-COPY utils.lib /
-
-# We store stress_tests.lib in stateless image to avoid duplication of this file in stress and upgrade tests
-COPY stress_tests.lib /
-
-CMD ["/bin/bash", "/run.sh"]

docker/test/stress/Dockerfile

@@ -22,8 +22,5 @@ RUN apt-get update -y \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/* /var/cache/debconf /tmp/*
 
-COPY run.sh /
-
 ENV EXPORT_S3_STORAGE_POLICIES=1
 
-CMD ["/bin/bash", "/run.sh"]

docker/test/upgrade/Dockerfile

@@ -1,29 +0,0 @@
-# rebuild in #33610
-# docker build -t clickhouse/upgrade-check .
-ARG FROM_TAG=latest
-FROM clickhouse/stateful-test:$FROM_TAG
-
-RUN apt-get update -y \
-    && env DEBIAN_FRONTEND=noninteractive \
-        apt-get install --yes --no-install-recommends \
-            bash \
-            tzdata \
-            parallel \
-            expect \
-            python3 \
-            python3-lxml \
-            python3-termcolor \
-            python3-requests \
-            curl \
-            sudo \
-            openssl \
-            netcat-openbsd \
-            brotli \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/* /var/cache/debconf /tmp/*
-
-COPY run.sh /
-
-ENV EXPORT_S3_STORAGE_POLICIES=1
-
-CMD ["/bin/bash", "/run.sh"]

docker/test/util/Dockerfile

@@ -56,7 +56,5 @@ RUN apt-get update \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/* /var/cache/debconf /tmp/*
 
-COPY process_functional_tests_result.py /
-
 COPY --from=clickhouse/cctools:0d6b90a7a490 /opt/gdb /opt/gdb
 ENV PATH="/opt/gdb/bin:${PATH}"

docs/changelogs/v24.3.7.30-lts.md

@@ -0,0 +1,29 @@
+---
+sidebar_position: 1
+sidebar_label: 2024
+---
+
+# 2024 Changelog
+
+### ClickHouse release v24.3.7.30-lts (c8a28cf4331) FIXME as compared to v24.3.6.48-lts (b2d33c3c45d)
+
+#### Improvement
+* Backported in [#68103](https://github.com/ClickHouse/ClickHouse/issues/68103): Distinguish booleans and integers while parsing values for custom settings: ``` SET custom_a = true; SET custom_b = 1; ```. [#62206](https://github.com/ClickHouse/ClickHouse/pull/62206) ([Vitaly Baranov](https://github.com/vitlibar)).
+
+#### Bug Fix (user-visible misbehavior in an official stable release)
+* Backported in [#67931](https://github.com/ClickHouse/ClickHouse/issues/67931): Fixing the `Not-ready Set` error after the `PREWHERE` optimization for StorageMerge. [#65057](https://github.com/ClickHouse/ClickHouse/pull/65057) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#68062](https://github.com/ClickHouse/ClickHouse/issues/68062): Fix boolean literals in query sent to external database (for engines like `PostgreSQL`). [#66282](https://github.com/ClickHouse/ClickHouse/pull/66282) ([vdimir](https://github.com/vdimir)).
+* Backported in [#67812](https://github.com/ClickHouse/ClickHouse/issues/67812): Only relevant to the experimental Variant data type. Fix crash with Variant + AggregateFunction type. [#67122](https://github.com/ClickHouse/ClickHouse/pull/67122) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#67848](https://github.com/ClickHouse/ClickHouse/issues/67848): Fixes [#66026](https://github.com/ClickHouse/ClickHouse/issues/66026). Avoid unresolved table function arguments traversal in `ReplaceTableNodeToDummyVisitor`. [#67522](https://github.com/ClickHouse/ClickHouse/pull/67522) ([Dmitry Novik](https://github.com/novikd)).
+* Backported in [#68271](https://github.com/ClickHouse/ClickHouse/issues/68271): Fix inserting into stream like engines (Kafka, RabbitMQ, NATS) through HTTP interface. [#67554](https://github.com/ClickHouse/ClickHouse/pull/67554) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#67806](https://github.com/ClickHouse/ClickHouse/issues/67806): Fix reloading SQL UDFs with UNION. Previously, restarting the server could make UDF invalid. [#67665](https://github.com/ClickHouse/ClickHouse/pull/67665) ([Antonio Andelic](https://github.com/antonio2368)).
+* Backported in [#67834](https://github.com/ClickHouse/ClickHouse/issues/67834): Fix potential stack overflow in `JSONMergePatch` function. Renamed this function from `jsonMergePatch` to `JSONMergePatch` because the previous name was wrong. The previous name is still kept for compatibility. Improved diagnostic of errors in the function. This closes [#67304](https://github.com/ClickHouse/ClickHouse/issues/67304). [#67756](https://github.com/ClickHouse/ClickHouse/pull/67756) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Backported in [#68206](https://github.com/ClickHouse/ClickHouse/issues/68206): Fix wrong `count()` result when there is non-deterministic function in predicate. [#67922](https://github.com/ClickHouse/ClickHouse/pull/67922) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#68089](https://github.com/ClickHouse/ClickHouse/issues/68089): Fixed the calculation of the maximum thread soft limit in containerized environments where the usable CPU count is limited. [#67963](https://github.com/ClickHouse/ClickHouse/pull/67963) ([Robert Schulze](https://github.com/rschu1ze)).
+* Backported in [#68120](https://github.com/ClickHouse/ClickHouse/issues/68120): Fixed skipping of untouched parts in mutations with new analyzer. Previously with enabled analyzer data in part could be rewritten by mutation even if mutation doesn't affect this part according to predicate. [#68052](https://github.com/ClickHouse/ClickHouse/pull/68052) ([Anton Popov](https://github.com/CurtizJ)).
+
+#### NOT FOR CHANGELOG / INSIGNIFICANT
+
+* Update version after release. [#67676](https://github.com/ClickHouse/ClickHouse/pull/67676) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Backported in [#68074](https://github.com/ClickHouse/ClickHouse/issues/68074): Add an explicit error for `ALTER MODIFY SQL SECURITY` on non-view tables. [#67953](https://github.com/ClickHouse/ClickHouse/pull/67953) ([pufit](https://github.com/pufit)).
+

docs/changelogs/v24.3.8.13-lts.md

@@ -0,0 +1,16 @@
+---
+sidebar_position: 1
+sidebar_label: 2024
+---
+
+# 2024 Changelog
+
+### ClickHouse release v24.3.8.13-lts (84bbfc70f5d) FIXME as compared to v24.3.7.30-lts (c8a28cf4331)
+
+#### Bug Fix (user-visible misbehavior in an official stable release)
+* Backported in [#68562](https://github.com/ClickHouse/ClickHouse/issues/68562): Fix indexHint function case found by fuzzer. [#66286](https://github.com/ClickHouse/ClickHouse/pull/66286) ([Anton Popov](https://github.com/CurtizJ)).
+* Backported in [#68114](https://github.com/ClickHouse/ClickHouse/issues/68114): Fix possible PARAMETER_OUT_OF_BOUND error during reading variant subcolumn. [#66659](https://github.com/ClickHouse/ClickHouse/pull/66659) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#67989](https://github.com/ClickHouse/ClickHouse/issues/67989): Validate experimental/suspicious data types in ALTER ADD/MODIFY COLUMN. [#67911](https://github.com/ClickHouse/ClickHouse/pull/67911) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#68335](https://github.com/ClickHouse/ClickHouse/issues/68335): Try fix postgres crash when query is cancelled. [#68288](https://github.com/ClickHouse/ClickHouse/pull/68288) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Backported in [#68392](https://github.com/ClickHouse/ClickHouse/issues/68392): Fix missing sync replica mode in query `SYSTEM SYNC REPLICA`. [#68326](https://github.com/ClickHouse/ClickHouse/pull/68326) ([Duc Canh Le](https://github.com/canhld94)).
+

docs/changelogs/v24.5.5.41-stable.md

@@ -0,0 +1,71 @@
+---
+sidebar_position: 1
+sidebar_label: 2024
+---
+
+# 2024 Changelog
+
+### ClickHouse release v24.5.5.41-stable (441d4a6ebe3) FIXME as compared to v24.5.4.49-stable (63b760955a0)
+
+#### Improvement
+* Backported in [#66768](https://github.com/ClickHouse/ClickHouse/issues/66768): Make allow_experimental_analyzer be controlled by the initiator for distributed queries. This ensures compatibility and correctness during operations in mixed version clusters. [#65777](https://github.com/ClickHouse/ClickHouse/pull/65777) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
+
+#### Bug Fix (user-visible misbehavior in an official stable release)
+* Backported in [#65350](https://github.com/ClickHouse/ClickHouse/issues/65350): Fix possible abort on uncaught exception in ~WriteBufferFromFileDescriptor in StatusFile. [#64206](https://github.com/ClickHouse/ClickHouse/pull/64206) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#65621](https://github.com/ClickHouse/ClickHouse/issues/65621): Fix `Cannot find column` in distributed query with `ARRAY JOIN` by `Nested` column. Fixes [#64755](https://github.com/ClickHouse/ClickHouse/issues/64755). [#64801](https://github.com/ClickHouse/ClickHouse/pull/64801) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#67902](https://github.com/ClickHouse/ClickHouse/issues/67902): Fixing the `Not-ready Set` error after the `PREWHERE` optimization for StorageMerge. [#65057](https://github.com/ClickHouse/ClickHouse/pull/65057) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#66884](https://github.com/ClickHouse/ClickHouse/issues/66884): Fix unexpeced size of low cardinality column in function calls. [#65298](https://github.com/ClickHouse/ClickHouse/pull/65298) ([Raúl Marín](https://github.com/Algunenano)).
+* Backported in [#65933](https://github.com/ClickHouse/ClickHouse/issues/65933): For queries that read from `PostgreSQL`, cancel the internal `PostgreSQL` query if the ClickHouse query is finished. Otherwise, `ClickHouse` query cannot be canceled until the internal `PostgreSQL` query is finished. [#65771](https://github.com/ClickHouse/ClickHouse/pull/65771) ([Maksim Kita](https://github.com/kitaisreal)).
+* Backported in [#66301](https://github.com/ClickHouse/ClickHouse/issues/66301): Better handling of join conditions involving `IS NULL` checks (for example `ON (a = b AND (a IS NOT NULL) AND (b IS NOT NULL) ) OR ( (a IS NULL) AND (b IS NULL) )` is rewritten to `ON a <=> b`), fix incorrect optimization when condition other then `IS NULL` are present. [#65835](https://github.com/ClickHouse/ClickHouse/pull/65835) ([vdimir](https://github.com/vdimir)).
+* Backported in [#66328](https://github.com/ClickHouse/ClickHouse/issues/66328): Add missing settings `input_format_csv_skip_first_lines/input_format_tsv_skip_first_lines/input_format_csv_try_infer_numbers_from_strings/input_format_csv_try_infer_strings_from_quoted_tuples` in schema inference cache because they can change the resulting schema. It prevents from incorrect result of schema inference with these settings changed. [#65980](https://github.com/ClickHouse/ClickHouse/pull/65980) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#68252](https://github.com/ClickHouse/ClickHouse/issues/68252): Fixed `Not-ready Set` in some system tables when filtering using subqueries. [#66018](https://github.com/ClickHouse/ClickHouse/pull/66018) ([Michael Kolupaev](https://github.com/al13n321)).
+* Backported in [#66155](https://github.com/ClickHouse/ClickHouse/issues/66155): Fixed buffer overflow bug in `unbin`/`unhex` implementation. [#66106](https://github.com/ClickHouse/ClickHouse/pull/66106) ([Nikita Taranov](https://github.com/nickitat)).
+* Backported in [#66454](https://github.com/ClickHouse/ClickHouse/issues/66454): Fixed a bug in ZooKeeper client: a session could get stuck in unusable state after receiving a hardware error from ZooKeeper. For example, this might happen due to "soft memory limit" in ClickHouse Keeper. [#66140](https://github.com/ClickHouse/ClickHouse/pull/66140) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Backported in [#66226](https://github.com/ClickHouse/ClickHouse/issues/66226): Fix issue in SumIfToCountIfVisitor and signed integers. [#66146](https://github.com/ClickHouse/ClickHouse/pull/66146) ([Raúl Marín](https://github.com/Algunenano)).
+* Backported in [#66680](https://github.com/ClickHouse/ClickHouse/issues/66680): Fix handling limit for `system.numbers_mt` when no index can be used. [#66231](https://github.com/ClickHouse/ClickHouse/pull/66231) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#66604](https://github.com/ClickHouse/ClickHouse/issues/66604): Fixed how the ClickHouse server detects the maximum number of usable CPU cores as specified by cgroups v2 if the server runs in a container such as Docker. In more detail, containers often run their process in the root cgroup which has an empty name. In that case, ClickHouse ignored the CPU limits set by cgroups v2. [#66237](https://github.com/ClickHouse/ClickHouse/pull/66237) ([filimonov](https://github.com/filimonov)).
+* Backported in [#66360](https://github.com/ClickHouse/ClickHouse/issues/66360): Fix the `Not-ready set` error when a subquery with `IN` is used in the constraint. [#66261](https://github.com/ClickHouse/ClickHouse/pull/66261) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#68064](https://github.com/ClickHouse/ClickHouse/issues/68064): Fix boolean literals in query sent to external database (for engines like `PostgreSQL`). [#66282](https://github.com/ClickHouse/ClickHouse/pull/66282) ([vdimir](https://github.com/vdimir)).
+* Backported in [#68158](https://github.com/ClickHouse/ClickHouse/issues/68158): Fix cluster() for inter-server secret (preserve initial user as before). [#66364](https://github.com/ClickHouse/ClickHouse/pull/66364) ([Azat Khuzhin](https://github.com/azat)).
+* Backported in [#66972](https://github.com/ClickHouse/ClickHouse/issues/66972): Fix `Column identifier is already registered` error with `group_by_use_nulls=true` and new analyzer. [#66400](https://github.com/ClickHouse/ClickHouse/pull/66400) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#66691](https://github.com/ClickHouse/ClickHouse/issues/66691): Fix the VALID UNTIL clause in the user definition resetting after a restart. Closes [#66405](https://github.com/ClickHouse/ClickHouse/issues/66405). [#66409](https://github.com/ClickHouse/ClickHouse/pull/66409) ([Nikolay Degterinsky](https://github.com/evillique)).
+* Backported in [#66969](https://github.com/ClickHouse/ClickHouse/issues/66969): Fix `Cannot find column` error for queries with constant expression in `GROUP BY` key and new analyzer enabled. [#66433](https://github.com/ClickHouse/ClickHouse/pull/66433) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#66720](https://github.com/ClickHouse/ClickHouse/issues/66720): Correctly track memory for `Allocator::realloc`. [#66548](https://github.com/ClickHouse/ClickHouse/pull/66548) ([Antonio Andelic](https://github.com/antonio2368)).
+* Backported in [#66951](https://github.com/ClickHouse/ClickHouse/issues/66951): Fix an invalid result for queries with `WINDOW`. This could happen when `PARTITION` columns have sparse serialization and window functions are executed in parallel. [#66579](https://github.com/ClickHouse/ClickHouse/pull/66579) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#66757](https://github.com/ClickHouse/ClickHouse/issues/66757): Fix `Unknown identifier` and `Column is not under aggregate function` errors for queries with the expression `(column IS NULL).` The bug was triggered by [#65088](https://github.com/ClickHouse/ClickHouse/issues/65088), with the disabled analyzer only. [#66654](https://github.com/ClickHouse/ClickHouse/pull/66654) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#66948](https://github.com/ClickHouse/ClickHouse/issues/66948): Fix `Method getResultType is not supported for QUERY query node` error when scalar subquery was used as the first argument of IN (with new analyzer). [#66655](https://github.com/ClickHouse/ClickHouse/pull/66655) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#68115](https://github.com/ClickHouse/ClickHouse/issues/68115): Fix possible PARAMETER_OUT_OF_BOUND error during reading variant subcolumn. [#66659](https://github.com/ClickHouse/ClickHouse/pull/66659) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#67633](https://github.com/ClickHouse/ClickHouse/issues/67633): Fix for occasional deadlock in Context::getDDLWorker. [#66843](https://github.com/ClickHouse/ClickHouse/pull/66843) ([Alexander Gololobov](https://github.com/davenger)).
+* Backported in [#67481](https://github.com/ClickHouse/ClickHouse/issues/67481): In rare cases ClickHouse could consider parts as broken because of some unexpected projections on disk. Now it's fixed. [#66898](https://github.com/ClickHouse/ClickHouse/pull/66898) ([alesapin](https://github.com/alesapin)).
+* Backported in [#67814](https://github.com/ClickHouse/ClickHouse/issues/67814): Only relevant to the experimental Variant data type. Fix crash with Variant + AggregateFunction type. [#67122](https://github.com/ClickHouse/ClickHouse/pull/67122) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#67197](https://github.com/ClickHouse/ClickHouse/issues/67197): TRUNCATE DATABASE used to stop replication as if it was a DROP DATABASE query, it's fixed. [#67129](https://github.com/ClickHouse/ClickHouse/pull/67129) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Backported in [#67379](https://github.com/ClickHouse/ClickHouse/issues/67379): Fix error `Cannot convert column because it is non constant in source stream but must be constant in result.` for a query that reads from the `Merge` table over the `Distriburted` table with one shard. [#67146](https://github.com/ClickHouse/ClickHouse/pull/67146) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#67501](https://github.com/ClickHouse/ClickHouse/issues/67501): Fix crash in DistributedAsyncInsert when connection is empty. [#67219](https://github.com/ClickHouse/ClickHouse/pull/67219) ([Pablo Marcos](https://github.com/pamarcos)).
+* Backported in [#67886](https://github.com/ClickHouse/ClickHouse/issues/67886): Correctly parse file name/URI containing `::` if it's not an archive. [#67433](https://github.com/ClickHouse/ClickHouse/pull/67433) ([Antonio Andelic](https://github.com/antonio2368)).
+* Backported in [#67576](https://github.com/ClickHouse/ClickHouse/issues/67576): Fix execution of nested short-circuit functions. [#67520](https://github.com/ClickHouse/ClickHouse/pull/67520) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#67850](https://github.com/ClickHouse/ClickHouse/issues/67850): Fixes [#66026](https://github.com/ClickHouse/ClickHouse/issues/66026). Avoid unresolved table function arguments traversal in `ReplaceTableNodeToDummyVisitor`. [#67522](https://github.com/ClickHouse/ClickHouse/pull/67522) ([Dmitry Novik](https://github.com/novikd)).
+* Backported in [#68272](https://github.com/ClickHouse/ClickHouse/issues/68272): Fix inserting into stream like engines (Kafka, RabbitMQ, NATS) through HTTP interface. [#67554](https://github.com/ClickHouse/ClickHouse/pull/67554) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#67807](https://github.com/ClickHouse/ClickHouse/issues/67807): Fix reloading SQL UDFs with UNION. Previously, restarting the server could make UDF invalid. [#67665](https://github.com/ClickHouse/ClickHouse/pull/67665) ([Antonio Andelic](https://github.com/antonio2368)).
+* Backported in [#67836](https://github.com/ClickHouse/ClickHouse/issues/67836): Fix potential stack overflow in `JSONMergePatch` function. Renamed this function from `jsonMergePatch` to `JSONMergePatch` because the previous name was wrong. The previous name is still kept for compatibility. Improved diagnostic of errors in the function. This closes [#67304](https://github.com/ClickHouse/ClickHouse/issues/67304). [#67756](https://github.com/ClickHouse/ClickHouse/pull/67756) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Backported in [#67991](https://github.com/ClickHouse/ClickHouse/issues/67991): Validate experimental/suspicious data types in ALTER ADD/MODIFY COLUMN. [#67911](https://github.com/ClickHouse/ClickHouse/pull/67911) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#68207](https://github.com/ClickHouse/ClickHouse/issues/68207): Fix wrong `count()` result when there is non-deterministic function in predicate. [#67922](https://github.com/ClickHouse/ClickHouse/pull/67922) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#68091](https://github.com/ClickHouse/ClickHouse/issues/68091): Fixed the calculation of the maximum thread soft limit in containerized environments where the usable CPU count is limited. [#67963](https://github.com/ClickHouse/ClickHouse/pull/67963) ([Robert Schulze](https://github.com/rschu1ze)).
+* Backported in [#68122](https://github.com/ClickHouse/ClickHouse/issues/68122): Fixed skipping of untouched parts in mutations with new analyzer. Previously with enabled analyzer data in part could be rewritten by mutation even if mutation doesn't affect this part according to predicate. [#68052](https://github.com/ClickHouse/ClickHouse/pull/68052) ([Anton Popov](https://github.com/CurtizJ)).
+* Backported in [#68171](https://github.com/ClickHouse/ClickHouse/issues/68171): Removes an incorrect optimization to remove sorting in subqueries that use `OFFSET`. Fixes [#67906](https://github.com/ClickHouse/ClickHouse/issues/67906). [#68099](https://github.com/ClickHouse/ClickHouse/pull/68099) ([Graham Campbell](https://github.com/GrahamCampbell)).
+* Backported in [#68337](https://github.com/ClickHouse/ClickHouse/issues/68337): Try fix postgres crash when query is cancelled. [#68288](https://github.com/ClickHouse/ClickHouse/pull/68288) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Backported in [#68667](https://github.com/ClickHouse/ClickHouse/issues/68667): Fix `LOGICAL_ERROR`s when functions `sipHash64Keyed`, `sipHash128Keyed`, or `sipHash128ReferenceKeyed` are applied to empty arrays or tuples. [#68630](https://github.com/ClickHouse/ClickHouse/pull/68630) ([Robert Schulze](https://github.com/rschu1ze)).
+
+#### NOT FOR CHANGELOG / INSIGNIFICANT
+
+* Backported in [#66387](https://github.com/ClickHouse/ClickHouse/issues/66387): Disable broken cases from 02911_join_on_nullsafe_optimization. [#66310](https://github.com/ClickHouse/ClickHouse/pull/66310) ([vdimir](https://github.com/vdimir)).
+* Backported in [#66426](https://github.com/ClickHouse/ClickHouse/issues/66426): Ignore subquery for IN in DDLLoadingDependencyVisitor. [#66395](https://github.com/ClickHouse/ClickHouse/pull/66395) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#66544](https://github.com/ClickHouse/ClickHouse/issues/66544): Add additional log masking in CI. [#66523](https://github.com/ClickHouse/ClickHouse/pull/66523) ([Raúl Marín](https://github.com/Algunenano)).
+* Backported in [#66859](https://github.com/ClickHouse/ClickHouse/issues/66859): Fix data race in S3::ClientCache. [#66644](https://github.com/ClickHouse/ClickHouse/pull/66644) ([Konstantin Morozov](https://github.com/k-morozov)).
+* Backported in [#66875](https://github.com/ClickHouse/ClickHouse/issues/66875): Support one more case in JOIN ON ... IS NULL. [#66725](https://github.com/ClickHouse/ClickHouse/pull/66725) ([vdimir](https://github.com/vdimir)).
+* Backported in [#67059](https://github.com/ClickHouse/ClickHouse/issues/67059): Increase asio pool size in case the server is tiny. [#66761](https://github.com/ClickHouse/ClickHouse/pull/66761) ([alesapin](https://github.com/alesapin)).
+* Backported in [#66945](https://github.com/ClickHouse/ClickHouse/issues/66945): Small fix in realloc memory tracking. [#66820](https://github.com/ClickHouse/ClickHouse/pull/66820) ([Antonio Andelic](https://github.com/antonio2368)).
+* Backported in [#67252](https://github.com/ClickHouse/ClickHouse/issues/67252): Followup [#66725](https://github.com/ClickHouse/ClickHouse/issues/66725). [#66869](https://github.com/ClickHouse/ClickHouse/pull/66869) ([vdimir](https://github.com/vdimir)).
+* Backported in [#67412](https://github.com/ClickHouse/ClickHouse/issues/67412): CI: Fix build results for release branches. [#67402](https://github.com/ClickHouse/ClickHouse/pull/67402) ([Max K.](https://github.com/maxknv)).
+* Update version after release. [#67862](https://github.com/ClickHouse/ClickHouse/pull/67862) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Backported in [#68077](https://github.com/ClickHouse/ClickHouse/issues/68077): Add an explicit error for `ALTER MODIFY SQL SECURITY` on non-view tables. [#67953](https://github.com/ClickHouse/ClickHouse/pull/67953) ([pufit](https://github.com/pufit)).
+

docs/changelogs/v24.5.6.45-stable.md

@@ -0,0 +1,33 @@
+---
+sidebar_position: 1
+sidebar_label: 2024
+---
+
+# 2024 Changelog
+
+### ClickHouse release v24.5.6.45-stable (bdca8604c29) FIXME as compared to v24.5.5.78-stable (0138248cb62)
+
+#### Bug Fix (user-visible misbehavior in an official stable release)
+* Backported in [#67902](https://github.com/ClickHouse/ClickHouse/issues/67902): Fixing the `Not-ready Set` error after the `PREWHERE` optimization for StorageMerge. [#65057](https://github.com/ClickHouse/ClickHouse/pull/65057) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#68252](https://github.com/ClickHouse/ClickHouse/issues/68252): Fixed `Not-ready Set` in some system tables when filtering using subqueries. [#66018](https://github.com/ClickHouse/ClickHouse/pull/66018) ([Michael Kolupaev](https://github.com/al13n321)).
+* Backported in [#68064](https://github.com/ClickHouse/ClickHouse/issues/68064): Fix boolean literals in query sent to external database (for engines like `PostgreSQL`). [#66282](https://github.com/ClickHouse/ClickHouse/pull/66282) ([vdimir](https://github.com/vdimir)).
+* Backported in [#68158](https://github.com/ClickHouse/ClickHouse/issues/68158): Fix cluster() for inter-server secret (preserve initial user as before). [#66364](https://github.com/ClickHouse/ClickHouse/pull/66364) ([Azat Khuzhin](https://github.com/azat)).
+* Backported in [#68115](https://github.com/ClickHouse/ClickHouse/issues/68115): Fix possible PARAMETER_OUT_OF_BOUND error during reading variant subcolumn. [#66659](https://github.com/ClickHouse/ClickHouse/pull/66659) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#67886](https://github.com/ClickHouse/ClickHouse/issues/67886): Correctly parse file name/URI containing `::` if it's not an archive. [#67433](https://github.com/ClickHouse/ClickHouse/pull/67433) ([Antonio Andelic](https://github.com/antonio2368)).
+* Backported in [#68272](https://github.com/ClickHouse/ClickHouse/issues/68272): Fix inserting into stream like engines (Kafka, RabbitMQ, NATS) through HTTP interface. [#67554](https://github.com/ClickHouse/ClickHouse/pull/67554) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#67807](https://github.com/ClickHouse/ClickHouse/issues/67807): Fix reloading SQL UDFs with UNION. Previously, restarting the server could make UDF invalid. [#67665](https://github.com/ClickHouse/ClickHouse/pull/67665) ([Antonio Andelic](https://github.com/antonio2368)).
+* Backported in [#67836](https://github.com/ClickHouse/ClickHouse/issues/67836): Fix potential stack overflow in `JSONMergePatch` function. Renamed this function from `jsonMergePatch` to `JSONMergePatch` because the previous name was wrong. The previous name is still kept for compatibility. Improved diagnostic of errors in the function. This closes [#67304](https://github.com/ClickHouse/ClickHouse/issues/67304). [#67756](https://github.com/ClickHouse/ClickHouse/pull/67756) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Backported in [#67991](https://github.com/ClickHouse/ClickHouse/issues/67991): Validate experimental/suspicious data types in ALTER ADD/MODIFY COLUMN. [#67911](https://github.com/ClickHouse/ClickHouse/pull/67911) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#68207](https://github.com/ClickHouse/ClickHouse/issues/68207): Fix wrong `count()` result when there is non-deterministic function in predicate. [#67922](https://github.com/ClickHouse/ClickHouse/pull/67922) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#68091](https://github.com/ClickHouse/ClickHouse/issues/68091): Fixed the calculation of the maximum thread soft limit in containerized environments where the usable CPU count is limited. [#67963](https://github.com/ClickHouse/ClickHouse/pull/67963) ([Robert Schulze](https://github.com/rschu1ze)).
+* Backported in [#68122](https://github.com/ClickHouse/ClickHouse/issues/68122): Fixed skipping of untouched parts in mutations with new analyzer. Previously with enabled analyzer data in part could be rewritten by mutation even if mutation doesn't affect this part according to predicate. [#68052](https://github.com/ClickHouse/ClickHouse/pull/68052) ([Anton Popov](https://github.com/CurtizJ)).
+* Backported in [#68171](https://github.com/ClickHouse/ClickHouse/issues/68171): Removes an incorrect optimization to remove sorting in subqueries that use `OFFSET`. Fixes [#67906](https://github.com/ClickHouse/ClickHouse/issues/67906). [#68099](https://github.com/ClickHouse/ClickHouse/pull/68099) ([Graham Campbell](https://github.com/GrahamCampbell)).
+* Backported in [#68337](https://github.com/ClickHouse/ClickHouse/issues/68337): Try fix postgres crash when query is cancelled. [#68288](https://github.com/ClickHouse/ClickHouse/pull/68288) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Backported in [#68667](https://github.com/ClickHouse/ClickHouse/issues/68667): Fix `LOGICAL_ERROR`s when functions `sipHash64Keyed`, `sipHash128Keyed`, or `sipHash128ReferenceKeyed` are applied to empty arrays or tuples. [#68630](https://github.com/ClickHouse/ClickHouse/pull/68630) ([Robert Schulze](https://github.com/rschu1ze)).
+
+#### NOT FOR CHANGELOG / INSIGNIFICANT
+
+* Update version after release. [#67862](https://github.com/ClickHouse/ClickHouse/pull/67862) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Backported in [#68077](https://github.com/ClickHouse/ClickHouse/issues/68077): Add an explicit error for `ALTER MODIFY SQL SECURITY` on non-view tables. [#67953](https://github.com/ClickHouse/ClickHouse/pull/67953) ([pufit](https://github.com/pufit)).
+* Backported in [#68756](https://github.com/ClickHouse/ClickHouse/issues/68756): To make patch release possible from every commit on release branch, package_debug build is required and must not be skipped. [#68750](https://github.com/ClickHouse/ClickHouse/pull/68750) ([Max K.](https://github.com/maxknv)).
+

docs/changelogs/v24.6.3.38-stable.md

@@ -0,0 +1,83 @@
+---
+sidebar_position: 1
+sidebar_label: 2024
+---
+
+# 2024 Changelog
+
+### ClickHouse release v24.6.3.38-stable (4e33c831589) FIXME as compared to v24.6.2.17-stable (5710a8b5c0c)
+
+#### Improvement
+* Backported in [#66770](https://github.com/ClickHouse/ClickHouse/issues/66770): Make allow_experimental_analyzer be controlled by the initiator for distributed queries. This ensures compatibility and correctness during operations in mixed version clusters. [#65777](https://github.com/ClickHouse/ClickHouse/pull/65777) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
+
+#### Bug Fix (user-visible misbehavior in an official stable release)
+* Backported in [#66885](https://github.com/ClickHouse/ClickHouse/issues/66885): Fix unexpeced size of low cardinality column in function calls. [#65298](https://github.com/ClickHouse/ClickHouse/pull/65298) ([Raúl Marín](https://github.com/Algunenano)).
+* Backported in [#66303](https://github.com/ClickHouse/ClickHouse/issues/66303): Better handling of join conditions involving `IS NULL` checks (for example `ON (a = b AND (a IS NOT NULL) AND (b IS NOT NULL) ) OR ( (a IS NULL) AND (b IS NULL) )` is rewritten to `ON a <=> b`), fix incorrect optimization when condition other then `IS NULL` are present. [#65835](https://github.com/ClickHouse/ClickHouse/pull/65835) ([vdimir](https://github.com/vdimir)).
+* Backported in [#66330](https://github.com/ClickHouse/ClickHouse/issues/66330): Add missing settings `input_format_csv_skip_first_lines/input_format_tsv_skip_first_lines/input_format_csv_try_infer_numbers_from_strings/input_format_csv_try_infer_strings_from_quoted_tuples` in schema inference cache because they can change the resulting schema. It prevents from incorrect result of schema inference with these settings changed. [#65980](https://github.com/ClickHouse/ClickHouse/pull/65980) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#66157](https://github.com/ClickHouse/ClickHouse/issues/66157): Fixed buffer overflow bug in `unbin`/`unhex` implementation. [#66106](https://github.com/ClickHouse/ClickHouse/pull/66106) ([Nikita Taranov](https://github.com/nickitat)).
+* Backported in [#66210](https://github.com/ClickHouse/ClickHouse/issues/66210): Disable the `merge-filters` optimization introduced in [#64760](https://github.com/ClickHouse/ClickHouse/issues/64760). It may cause an exception if optimization merges two filter expressions and does not apply a short-circuit evaluation. [#66126](https://github.com/ClickHouse/ClickHouse/pull/66126) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#66456](https://github.com/ClickHouse/ClickHouse/issues/66456): Fixed a bug in ZooKeeper client: a session could get stuck in unusable state after receiving a hardware error from ZooKeeper. For example, this might happen due to "soft memory limit" in ClickHouse Keeper. [#66140](https://github.com/ClickHouse/ClickHouse/pull/66140) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Backported in [#66228](https://github.com/ClickHouse/ClickHouse/issues/66228): Fix issue in SumIfToCountIfVisitor and signed integers. [#66146](https://github.com/ClickHouse/ClickHouse/pull/66146) ([Raúl Marín](https://github.com/Algunenano)).
+* Backported in [#66183](https://github.com/ClickHouse/ClickHouse/issues/66183): Fix rare case with missing data in the result of distributed query, close [#61432](https://github.com/ClickHouse/ClickHouse/issues/61432). [#66174](https://github.com/ClickHouse/ClickHouse/pull/66174) ([vdimir](https://github.com/vdimir)).
+* Backported in [#66271](https://github.com/ClickHouse/ClickHouse/issues/66271): Don't throw `TIMEOUT_EXCEEDED` for `none_only_active` mode of `distributed_ddl_output_mode`. [#66218](https://github.com/ClickHouse/ClickHouse/pull/66218) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Backported in [#66682](https://github.com/ClickHouse/ClickHouse/issues/66682): Fix handling limit for `system.numbers_mt` when no index can be used. [#66231](https://github.com/ClickHouse/ClickHouse/pull/66231) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#66587](https://github.com/ClickHouse/ClickHouse/issues/66587): Fixed how the ClickHouse server detects the maximum number of usable CPU cores as specified by cgroups v2 if the server runs in a container such as Docker. In more detail, containers often run their process in the root cgroup which has an empty name. In that case, ClickHouse ignored the CPU limits set by cgroups v2. [#66237](https://github.com/ClickHouse/ClickHouse/pull/66237) ([filimonov](https://github.com/filimonov)).
+* Backported in [#66362](https://github.com/ClickHouse/ClickHouse/issues/66362): Fix the `Not-ready set` error when a subquery with `IN` is used in the constraint. [#66261](https://github.com/ClickHouse/ClickHouse/pull/66261) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#68066](https://github.com/ClickHouse/ClickHouse/issues/68066): Fix boolean literals in query sent to external database (for engines like `PostgreSQL`). [#66282](https://github.com/ClickHouse/ClickHouse/pull/66282) ([vdimir](https://github.com/vdimir)).
+* Backported in [#68566](https://github.com/ClickHouse/ClickHouse/issues/68566): Fix indexHint function case found by fuzzer. [#66286](https://github.com/ClickHouse/ClickHouse/pull/66286) ([Anton Popov](https://github.com/CurtizJ)).
+* Backported in [#68159](https://github.com/ClickHouse/ClickHouse/issues/68159): Fix cluster() for inter-server secret (preserve initial user as before). [#66364](https://github.com/ClickHouse/ClickHouse/pull/66364) ([Azat Khuzhin](https://github.com/azat)).
+* Backported in [#66613](https://github.com/ClickHouse/ClickHouse/issues/66613): Fix `Column identifier is already registered` error with `group_by_use_nulls=true` and new analyzer. [#66400](https://github.com/ClickHouse/ClickHouse/pull/66400) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#66693](https://github.com/ClickHouse/ClickHouse/issues/66693): Fix the VALID UNTIL clause in the user definition resetting after a restart. Closes [#66405](https://github.com/ClickHouse/ClickHouse/issues/66405). [#66409](https://github.com/ClickHouse/ClickHouse/pull/66409) ([Nikolay Degterinsky](https://github.com/evillique)).
+* Backported in [#66577](https://github.com/ClickHouse/ClickHouse/issues/66577): Fix `Cannot find column` error for queries with constant expression in `GROUP BY` key and new analyzer enabled. [#66433](https://github.com/ClickHouse/ClickHouse/pull/66433) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#66721](https://github.com/ClickHouse/ClickHouse/issues/66721): Correctly track memory for `Allocator::realloc`. [#66548](https://github.com/ClickHouse/ClickHouse/pull/66548) ([Antonio Andelic](https://github.com/antonio2368)).
+* Backported in [#66670](https://github.com/ClickHouse/ClickHouse/issues/66670): Fix reading of uninitialized memory when hashing empty tuples. This closes [#66559](https://github.com/ClickHouse/ClickHouse/issues/66559). [#66562](https://github.com/ClickHouse/ClickHouse/pull/66562) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Backported in [#66952](https://github.com/ClickHouse/ClickHouse/issues/66952): Fix an invalid result for queries with `WINDOW`. This could happen when `PARTITION` columns have sparse serialization and window functions are executed in parallel. [#66579](https://github.com/ClickHouse/ClickHouse/pull/66579) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#66956](https://github.com/ClickHouse/ClickHouse/issues/66956): Fix removing named collections in local storage. [#66599](https://github.com/ClickHouse/ClickHouse/pull/66599) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#66716](https://github.com/ClickHouse/ClickHouse/issues/66716): Fix removing named collections in local storage. [#66599](https://github.com/ClickHouse/ClickHouse/pull/66599) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#66759](https://github.com/ClickHouse/ClickHouse/issues/66759): Fix `Unknown identifier` and `Column is not under aggregate function` errors for queries with the expression `(column IS NULL).` The bug was triggered by [#65088](https://github.com/ClickHouse/ClickHouse/issues/65088), with the disabled analyzer only. [#66654](https://github.com/ClickHouse/ClickHouse/pull/66654) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#66751](https://github.com/ClickHouse/ClickHouse/issues/66751): Fix `Method getResultType is not supported for QUERY query node` error when scalar subquery was used as the first argument of IN (with new analyzer). [#66655](https://github.com/ClickHouse/ClickHouse/pull/66655) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#68116](https://github.com/ClickHouse/ClickHouse/issues/68116): Fix possible PARAMETER_OUT_OF_BOUND error during reading variant subcolumn. [#66659](https://github.com/ClickHouse/ClickHouse/pull/66659) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#67635](https://github.com/ClickHouse/ClickHouse/issues/67635): Fix for occasional deadlock in Context::getDDLWorker. [#66843](https://github.com/ClickHouse/ClickHouse/pull/66843) ([Alexander Gololobov](https://github.com/davenger)).
+* Backported in [#67482](https://github.com/ClickHouse/ClickHouse/issues/67482): In rare cases ClickHouse could consider parts as broken because of some unexpected projections on disk. Now it's fixed. [#66898](https://github.com/ClickHouse/ClickHouse/pull/66898) ([alesapin](https://github.com/alesapin)).
+* Backported in [#67816](https://github.com/ClickHouse/ClickHouse/issues/67816): Only relevant to the experimental Variant data type. Fix crash with Variant + AggregateFunction type. [#67122](https://github.com/ClickHouse/ClickHouse/pull/67122) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#67199](https://github.com/ClickHouse/ClickHouse/issues/67199): TRUNCATE DATABASE used to stop replication as if it was a DROP DATABASE query, it's fixed. [#67129](https://github.com/ClickHouse/ClickHouse/pull/67129) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Backported in [#67381](https://github.com/ClickHouse/ClickHouse/issues/67381): Fix error `Cannot convert column because it is non constant in source stream but must be constant in result.` for a query that reads from the `Merge` table over the `Distriburted` table with one shard. [#67146](https://github.com/ClickHouse/ClickHouse/pull/67146) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#67244](https://github.com/ClickHouse/ClickHouse/issues/67244): This closes [#67156](https://github.com/ClickHouse/ClickHouse/issues/67156). This closes [#66447](https://github.com/ClickHouse/ClickHouse/issues/66447). The bug was introduced in https://github.com/ClickHouse/ClickHouse/pull/62907. [#67178](https://github.com/ClickHouse/ClickHouse/pull/67178) ([Maksim Kita](https://github.com/kitaisreal)).
+* Backported in [#67503](https://github.com/ClickHouse/ClickHouse/issues/67503): Fix crash in DistributedAsyncInsert when connection is empty. [#67219](https://github.com/ClickHouse/ClickHouse/pull/67219) ([Pablo Marcos](https://github.com/pamarcos)).
+* Backported in [#67887](https://github.com/ClickHouse/ClickHouse/issues/67887): Correctly parse file name/URI containing `::` if it's not an archive. [#67433](https://github.com/ClickHouse/ClickHouse/pull/67433) ([Antonio Andelic](https://github.com/antonio2368)).
+* Backported in [#67578](https://github.com/ClickHouse/ClickHouse/issues/67578): Fix execution of nested short-circuit functions. [#67520](https://github.com/ClickHouse/ClickHouse/pull/67520) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#68611](https://github.com/ClickHouse/ClickHouse/issues/68611): Fixes [#66026](https://github.com/ClickHouse/ClickHouse/issues/66026). Avoid unresolved table function arguments traversal in `ReplaceTableNodeToDummyVisitor`. [#67522](https://github.com/ClickHouse/ClickHouse/pull/67522) ([Dmitry Novik](https://github.com/novikd)).
+* Backported in [#67852](https://github.com/ClickHouse/ClickHouse/issues/67852): Fixes [#66026](https://github.com/ClickHouse/ClickHouse/issues/66026). Avoid unresolved table function arguments traversal in `ReplaceTableNodeToDummyVisitor`. [#67522](https://github.com/ClickHouse/ClickHouse/pull/67522) ([Dmitry Novik](https://github.com/novikd)).
+* Backported in [#68275](https://github.com/ClickHouse/ClickHouse/issues/68275): Fix inserting into stream like engines (Kafka, RabbitMQ, NATS) through HTTP interface. [#67554](https://github.com/ClickHouse/ClickHouse/pull/67554) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#67808](https://github.com/ClickHouse/ClickHouse/issues/67808): Fix reloading SQL UDFs with UNION. Previously, restarting the server could make UDF invalid. [#67665](https://github.com/ClickHouse/ClickHouse/pull/67665) ([Antonio Andelic](https://github.com/antonio2368)).
+* Backported in [#67838](https://github.com/ClickHouse/ClickHouse/issues/67838): Fix potential stack overflow in `JSONMergePatch` function. Renamed this function from `jsonMergePatch` to `JSONMergePatch` because the previous name was wrong. The previous name is still kept for compatibility. Improved diagnostic of errors in the function. This closes [#67304](https://github.com/ClickHouse/ClickHouse/issues/67304). [#67756](https://github.com/ClickHouse/ClickHouse/pull/67756) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Backported in [#67993](https://github.com/ClickHouse/ClickHouse/issues/67993): Validate experimental/suspicious data types in ALTER ADD/MODIFY COLUMN. [#67911](https://github.com/ClickHouse/ClickHouse/pull/67911) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#68208](https://github.com/ClickHouse/ClickHouse/issues/68208): Fix wrong `count()` result when there is non-deterministic function in predicate. [#67922](https://github.com/ClickHouse/ClickHouse/pull/67922) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#68093](https://github.com/ClickHouse/ClickHouse/issues/68093): Fixed the calculation of the maximum thread soft limit in containerized environments where the usable CPU count is limited. [#67963](https://github.com/ClickHouse/ClickHouse/pull/67963) ([Robert Schulze](https://github.com/rschu1ze)).
+* Backported in [#68124](https://github.com/ClickHouse/ClickHouse/issues/68124): Fixed skipping of untouched parts in mutations with new analyzer. Previously with enabled analyzer data in part could be rewritten by mutation even if mutation doesn't affect this part according to predicate. [#68052](https://github.com/ClickHouse/ClickHouse/pull/68052) ([Anton Popov](https://github.com/CurtizJ)).
+* Backported in [#68221](https://github.com/ClickHouse/ClickHouse/issues/68221): Fixed a NULL pointer dereference, triggered by a specially crafted query, that crashed the server via hopEnd, hopStart, tumbleEnd, and tumbleStart. [#68098](https://github.com/ClickHouse/ClickHouse/pull/68098) ([Salvatore Mesoraca](https://github.com/aiven-sal)).
+* Backported in [#68173](https://github.com/ClickHouse/ClickHouse/issues/68173): Removes an incorrect optimization to remove sorting in subqueries that use `OFFSET`. Fixes [#67906](https://github.com/ClickHouse/ClickHouse/issues/67906). [#68099](https://github.com/ClickHouse/ClickHouse/pull/68099) ([Graham Campbell](https://github.com/GrahamCampbell)).
+* Backported in [#68339](https://github.com/ClickHouse/ClickHouse/issues/68339): Try fix postgres crash when query is cancelled. [#68288](https://github.com/ClickHouse/ClickHouse/pull/68288) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Backported in [#68396](https://github.com/ClickHouse/ClickHouse/issues/68396): Fix missing sync replica mode in query `SYSTEM SYNC REPLICA`. [#68326](https://github.com/ClickHouse/ClickHouse/pull/68326) ([Duc Canh Le](https://github.com/canhld94)).
+* Backported in [#68668](https://github.com/ClickHouse/ClickHouse/issues/68668): Fix `LOGICAL_ERROR`s when functions `sipHash64Keyed`, `sipHash128Keyed`, or `sipHash128ReferenceKeyed` are applied to empty arrays or tuples. [#68630](https://github.com/ClickHouse/ClickHouse/pull/68630) ([Robert Schulze](https://github.com/rschu1ze)).
+
+#### NO CL ENTRY
+
+* NO CL ENTRY:  'Revert "Backport [#66599](https://github.com/ClickHouse/ClickHouse/issues/66599) to 24.6: Fix dropping named collection in local storage"'. [#66922](https://github.com/ClickHouse/ClickHouse/pull/66922) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+
+#### NOT FOR CHANGELOG / INSIGNIFICANT
+
+* Backported in [#66332](https://github.com/ClickHouse/ClickHouse/issues/66332): Do not raise a NOT_IMPLEMENTED error when getting s3 metrics with a multiple disk configuration. [#65403](https://github.com/ClickHouse/ClickHouse/pull/65403) ([Elena Torró](https://github.com/elenatorro)).
+* Backported in [#66142](https://github.com/ClickHouse/ClickHouse/issues/66142): Fix flaky test_storage_s3_queue tests. [#66009](https://github.com/ClickHouse/ClickHouse/pull/66009) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Backported in [#66389](https://github.com/ClickHouse/ClickHouse/issues/66389): Disable broken cases from 02911_join_on_nullsafe_optimization. [#66310](https://github.com/ClickHouse/ClickHouse/pull/66310) ([vdimir](https://github.com/vdimir)).
+* Backported in [#66428](https://github.com/ClickHouse/ClickHouse/issues/66428): Ignore subquery for IN in DDLLoadingDependencyVisitor. [#66395](https://github.com/ClickHouse/ClickHouse/pull/66395) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#66546](https://github.com/ClickHouse/ClickHouse/issues/66546): Add additional log masking in CI. [#66523](https://github.com/ClickHouse/ClickHouse/pull/66523) ([Raúl Marín](https://github.com/Algunenano)).
+* Backported in [#66861](https://github.com/ClickHouse/ClickHouse/issues/66861): Fix data race in S3::ClientCache. [#66644](https://github.com/ClickHouse/ClickHouse/pull/66644) ([Konstantin Morozov](https://github.com/k-morozov)).
+* Backported in [#66877](https://github.com/ClickHouse/ClickHouse/issues/66877): Support one more case in JOIN ON ... IS NULL. [#66725](https://github.com/ClickHouse/ClickHouse/pull/66725) ([vdimir](https://github.com/vdimir)).
+* Backported in [#67061](https://github.com/ClickHouse/ClickHouse/issues/67061): Increase asio pool size in case the server is tiny. [#66761](https://github.com/ClickHouse/ClickHouse/pull/66761) ([alesapin](https://github.com/alesapin)).
+* Backported in [#66940](https://github.com/ClickHouse/ClickHouse/issues/66940): Small fix in realloc memory tracking. [#66820](https://github.com/ClickHouse/ClickHouse/pull/66820) ([Antonio Andelic](https://github.com/antonio2368)).
+* Backported in [#67254](https://github.com/ClickHouse/ClickHouse/issues/67254): Followup [#66725](https://github.com/ClickHouse/ClickHouse/issues/66725). [#66869](https://github.com/ClickHouse/ClickHouse/pull/66869) ([vdimir](https://github.com/vdimir)).
+* Backported in [#67414](https://github.com/ClickHouse/ClickHouse/issues/67414): CI: Fix build results for release branches. [#67402](https://github.com/ClickHouse/ClickHouse/pull/67402) ([Max K.](https://github.com/maxknv)).
+* Update version after release. [#67909](https://github.com/ClickHouse/ClickHouse/pull/67909) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Backported in [#68079](https://github.com/ClickHouse/ClickHouse/issues/68079): Add an explicit error for `ALTER MODIFY SQL SECURITY` on non-view tables. [#67953](https://github.com/ClickHouse/ClickHouse/pull/67953) ([pufit](https://github.com/pufit)).
+

docs/changelogs/v24.6.4.42-stable.md

@@ -0,0 +1,33 @@
+---
+sidebar_position: 1
+sidebar_label: 2024
+---
+
+# 2024 Changelog
+
+### ClickHouse release v24.6.4.42-stable (c534bb4b4dd) FIXME as compared to v24.6.3.95-stable (8325c920d11)
+
+#### Bug Fix (user-visible misbehavior in an official stable release)
+* Backported in [#68066](https://github.com/ClickHouse/ClickHouse/issues/68066): Fix boolean literals in query sent to external database (for engines like `PostgreSQL`). [#66282](https://github.com/ClickHouse/ClickHouse/pull/66282) ([vdimir](https://github.com/vdimir)).
+* Backported in [#68566](https://github.com/ClickHouse/ClickHouse/issues/68566): Fix indexHint function case found by fuzzer. [#66286](https://github.com/ClickHouse/ClickHouse/pull/66286) ([Anton Popov](https://github.com/CurtizJ)).
+* Backported in [#68159](https://github.com/ClickHouse/ClickHouse/issues/68159): Fix cluster() for inter-server secret (preserve initial user as before). [#66364](https://github.com/ClickHouse/ClickHouse/pull/66364) ([Azat Khuzhin](https://github.com/azat)).
+* Backported in [#68116](https://github.com/ClickHouse/ClickHouse/issues/68116): Fix possible PARAMETER_OUT_OF_BOUND error during reading variant subcolumn. [#66659](https://github.com/ClickHouse/ClickHouse/pull/66659) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#67887](https://github.com/ClickHouse/ClickHouse/issues/67887): Correctly parse file name/URI containing `::` if it's not an archive. [#67433](https://github.com/ClickHouse/ClickHouse/pull/67433) ([Antonio Andelic](https://github.com/antonio2368)).
+* Backported in [#68611](https://github.com/ClickHouse/ClickHouse/issues/68611): Fixes [#66026](https://github.com/ClickHouse/ClickHouse/issues/66026). Avoid unresolved table function arguments traversal in `ReplaceTableNodeToDummyVisitor`. [#67522](https://github.com/ClickHouse/ClickHouse/pull/67522) ([Dmitry Novik](https://github.com/novikd)).
+* Backported in [#68275](https://github.com/ClickHouse/ClickHouse/issues/68275): Fix inserting into stream like engines (Kafka, RabbitMQ, NATS) through HTTP interface. [#67554](https://github.com/ClickHouse/ClickHouse/pull/67554) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#67993](https://github.com/ClickHouse/ClickHouse/issues/67993): Validate experimental/suspicious data types in ALTER ADD/MODIFY COLUMN. [#67911](https://github.com/ClickHouse/ClickHouse/pull/67911) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#68208](https://github.com/ClickHouse/ClickHouse/issues/68208): Fix wrong `count()` result when there is non-deterministic function in predicate. [#67922](https://github.com/ClickHouse/ClickHouse/pull/67922) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#68093](https://github.com/ClickHouse/ClickHouse/issues/68093): Fixed the calculation of the maximum thread soft limit in containerized environments where the usable CPU count is limited. [#67963](https://github.com/ClickHouse/ClickHouse/pull/67963) ([Robert Schulze](https://github.com/rschu1ze)).
+* Backported in [#68124](https://github.com/ClickHouse/ClickHouse/issues/68124): Fixed skipping of untouched parts in mutations with new analyzer. Previously with enabled analyzer data in part could be rewritten by mutation even if mutation doesn't affect this part according to predicate. [#68052](https://github.com/ClickHouse/ClickHouse/pull/68052) ([Anton Popov](https://github.com/CurtizJ)).
+* Backported in [#68221](https://github.com/ClickHouse/ClickHouse/issues/68221): Fixed a NULL pointer dereference, triggered by a specially crafted query, that crashed the server via hopEnd, hopStart, tumbleEnd, and tumbleStart. [#68098](https://github.com/ClickHouse/ClickHouse/pull/68098) ([Salvatore Mesoraca](https://github.com/aiven-sal)).
+* Backported in [#68173](https://github.com/ClickHouse/ClickHouse/issues/68173): Removes an incorrect optimization to remove sorting in subqueries that use `OFFSET`. Fixes [#67906](https://github.com/ClickHouse/ClickHouse/issues/67906). [#68099](https://github.com/ClickHouse/ClickHouse/pull/68099) ([Graham Campbell](https://github.com/GrahamCampbell)).
+* Backported in [#68339](https://github.com/ClickHouse/ClickHouse/issues/68339): Try fix postgres crash when query is cancelled. [#68288](https://github.com/ClickHouse/ClickHouse/pull/68288) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Backported in [#68396](https://github.com/ClickHouse/ClickHouse/issues/68396): Fix missing sync replica mode in query `SYSTEM SYNC REPLICA`. [#68326](https://github.com/ClickHouse/ClickHouse/pull/68326) ([Duc Canh Le](https://github.com/canhld94)).
+* Backported in [#68668](https://github.com/ClickHouse/ClickHouse/issues/68668): Fix `LOGICAL_ERROR`s when functions `sipHash64Keyed`, `sipHash128Keyed`, or `sipHash128ReferenceKeyed` are applied to empty arrays or tuples. [#68630](https://github.com/ClickHouse/ClickHouse/pull/68630) ([Robert Schulze](https://github.com/rschu1ze)).
+
+#### NOT FOR CHANGELOG / INSIGNIFICANT
+
+* Update version after release. [#67909](https://github.com/ClickHouse/ClickHouse/pull/67909) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Backported in [#68079](https://github.com/ClickHouse/ClickHouse/issues/68079): Add an explicit error for `ALTER MODIFY SQL SECURITY` on non-view tables. [#67953](https://github.com/ClickHouse/ClickHouse/pull/67953) ([pufit](https://github.com/pufit)).
+* Backported in [#68758](https://github.com/ClickHouse/ClickHouse/issues/68758): To make patch release possible from every commit on release branch, package_debug build is required and must not be skipped. [#68750](https://github.com/ClickHouse/ClickHouse/pull/68750) ([Max K.](https://github.com/maxknv)).
+

docs/changelogs/v24.7.3.47-stable.md

@@ -0,0 +1,55 @@
+---
+sidebar_position: 1
+sidebar_label: 2024
+---
+
+# 2024 Changelog
+
+### ClickHouse release v24.7.3.47-stable (2e50fe27a14) FIXME as compared to v24.7.2.13-stable (6e41f601b2f)
+
+#### Bug Fix (user-visible misbehavior in an official stable release)
+* Backported in [#68232](https://github.com/ClickHouse/ClickHouse/issues/68232): Fixed `Not-ready Set` in some system tables when filtering using subqueries. [#66018](https://github.com/ClickHouse/ClickHouse/pull/66018) ([Michael Kolupaev](https://github.com/al13n321)).
+* Backported in [#67969](https://github.com/ClickHouse/ClickHouse/issues/67969): Fixed reading of subcolumns after `ALTER ADD COLUMN` query. [#66243](https://github.com/ClickHouse/ClickHouse/pull/66243) ([Anton Popov](https://github.com/CurtizJ)).
+* Backported in [#68068](https://github.com/ClickHouse/ClickHouse/issues/68068): Fix boolean literals in query sent to external database (for engines like `PostgreSQL`). [#66282](https://github.com/ClickHouse/ClickHouse/pull/66282) ([vdimir](https://github.com/vdimir)).
+* Backported in [#67637](https://github.com/ClickHouse/ClickHouse/issues/67637): Fix for occasional deadlock in Context::getDDLWorker. [#66843](https://github.com/ClickHouse/ClickHouse/pull/66843) ([Alexander Gololobov](https://github.com/davenger)).
+* Backported in [#67820](https://github.com/ClickHouse/ClickHouse/issues/67820): Fix possible deadlock on query cancel with parallel replicas. [#66905](https://github.com/ClickHouse/ClickHouse/pull/66905) ([Nikita Taranov](https://github.com/nickitat)).
+* Backported in [#67818](https://github.com/ClickHouse/ClickHouse/issues/67818): Only relevant to the experimental Variant data type. Fix crash with Variant + AggregateFunction type. [#67122](https://github.com/ClickHouse/ClickHouse/pull/67122) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#67766](https://github.com/ClickHouse/ClickHouse/issues/67766): Fix crash of `uniq` and `uniqTheta ` with `tuple()` argument. Closes [#67303](https://github.com/ClickHouse/ClickHouse/issues/67303). [#67306](https://github.com/ClickHouse/ClickHouse/pull/67306) ([flynn](https://github.com/ucasfl)).
+* Backported in [#67881](https://github.com/ClickHouse/ClickHouse/issues/67881): Correctly parse file name/URI containing `::` if it's not an archive. [#67433](https://github.com/ClickHouse/ClickHouse/pull/67433) ([Antonio Andelic](https://github.com/antonio2368)).
+* Backported in [#68613](https://github.com/ClickHouse/ClickHouse/issues/68613): Fixes [#66026](https://github.com/ClickHouse/ClickHouse/issues/66026). Avoid unresolved table function arguments traversal in `ReplaceTableNodeToDummyVisitor`. [#67522](https://github.com/ClickHouse/ClickHouse/pull/67522) ([Dmitry Novik](https://github.com/novikd)).
+* Backported in [#67854](https://github.com/ClickHouse/ClickHouse/issues/67854): Fixes [#66026](https://github.com/ClickHouse/ClickHouse/issues/66026). Avoid unresolved table function arguments traversal in `ReplaceTableNodeToDummyVisitor`. [#67522](https://github.com/ClickHouse/ClickHouse/pull/67522) ([Dmitry Novik](https://github.com/novikd)).
+* Backported in [#68278](https://github.com/ClickHouse/ClickHouse/issues/68278): Fix inserting into stream like engines (Kafka, RabbitMQ, NATS) through HTTP interface. [#67554](https://github.com/ClickHouse/ClickHouse/pull/67554) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#68040](https://github.com/ClickHouse/ClickHouse/issues/68040): Fix creation of view with recursive CTE. [#67587](https://github.com/ClickHouse/ClickHouse/pull/67587) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
+* Backported in [#68038](https://github.com/ClickHouse/ClickHouse/issues/68038): Fix crash on `percent_rank`. `percent_rank`'s default frame type is changed to `range unbounded preceding and unbounded following`. `IWindowFunction`'s default window frame is considered and now window functions without window frame definition in sql can be put into different `WindowTransfomer`s properly. [#67661](https://github.com/ClickHouse/ClickHouse/pull/67661) ([lgbo](https://github.com/lgbo-ustc)).
+* Backported in [#67713](https://github.com/ClickHouse/ClickHouse/issues/67713): Fix reloading SQL UDFs with UNION. Previously, restarting the server could make UDF invalid. [#67665](https://github.com/ClickHouse/ClickHouse/pull/67665) ([Antonio Andelic](https://github.com/antonio2368)).
+* Backported in [#67840](https://github.com/ClickHouse/ClickHouse/issues/67840): Fix potential stack overflow in `JSONMergePatch` function. Renamed this function from `jsonMergePatch` to `JSONMergePatch` because the previous name was wrong. The previous name is still kept for compatibility. Improved diagnostic of errors in the function. This closes [#67304](https://github.com/ClickHouse/ClickHouse/issues/67304). [#67756](https://github.com/ClickHouse/ClickHouse/pull/67756) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Backported in [#67995](https://github.com/ClickHouse/ClickHouse/issues/67995): Validate experimental/suspicious data types in ALTER ADD/MODIFY COLUMN. [#67911](https://github.com/ClickHouse/ClickHouse/pull/67911) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#68224](https://github.com/ClickHouse/ClickHouse/issues/68224): Fix wrong `count()` result when there is non-deterministic function in predicate. [#67922](https://github.com/ClickHouse/ClickHouse/pull/67922) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#68095](https://github.com/ClickHouse/ClickHouse/issues/68095): Fixed the calculation of the maximum thread soft limit in containerized environments where the usable CPU count is limited. [#67963](https://github.com/ClickHouse/ClickHouse/pull/67963) ([Robert Schulze](https://github.com/rschu1ze)).
+* Backported in [#68126](https://github.com/ClickHouse/ClickHouse/issues/68126): Fixed skipping of untouched parts in mutations with new analyzer. Previously with enabled analyzer data in part could be rewritten by mutation even if mutation doesn't affect this part according to predicate. [#68052](https://github.com/ClickHouse/ClickHouse/pull/68052) ([Anton Popov](https://github.com/CurtizJ)).
+* Backported in [#68223](https://github.com/ClickHouse/ClickHouse/issues/68223): Fixed a NULL pointer dereference, triggered by a specially crafted query, that crashed the server via hopEnd, hopStart, tumbleEnd, and tumbleStart. [#68098](https://github.com/ClickHouse/ClickHouse/pull/68098) ([Salvatore Mesoraca](https://github.com/aiven-sal)).
+* Backported in [#68175](https://github.com/ClickHouse/ClickHouse/issues/68175): Removes an incorrect optimization to remove sorting in subqueries that use `OFFSET`. Fixes [#67906](https://github.com/ClickHouse/ClickHouse/issues/67906). [#68099](https://github.com/ClickHouse/ClickHouse/pull/68099) ([Graham Campbell](https://github.com/GrahamCampbell)).
+* Backported in [#68341](https://github.com/ClickHouse/ClickHouse/issues/68341): Try fix postgres crash when query is cancelled. [#68288](https://github.com/ClickHouse/ClickHouse/pull/68288) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Backported in [#68398](https://github.com/ClickHouse/ClickHouse/issues/68398): Fix missing sync replica mode in query `SYSTEM SYNC REPLICA`. [#68326](https://github.com/ClickHouse/ClickHouse/pull/68326) ([Duc Canh Le](https://github.com/canhld94)).
+* Backported in [#68669](https://github.com/ClickHouse/ClickHouse/issues/68669): Fix `LOGICAL_ERROR`s when functions `sipHash64Keyed`, `sipHash128Keyed`, or `sipHash128ReferenceKeyed` are applied to empty arrays or tuples. [#68630](https://github.com/ClickHouse/ClickHouse/pull/68630) ([Robert Schulze](https://github.com/rschu1ze)).
+
+#### NOT FOR CHANGELOG / INSIGNIFICANT
+
+* Backported in [#67518](https://github.com/ClickHouse/ClickHouse/issues/67518): Split slow test 03036_dynamic_read_subcolumns. [#66954](https://github.com/ClickHouse/ClickHouse/pull/66954) ([Nikita Taranov](https://github.com/nickitat)).
+* Backported in [#67516](https://github.com/ClickHouse/ClickHouse/issues/67516): Split 01508_partition_pruning_long. [#66983](https://github.com/ClickHouse/ClickHouse/pull/66983) ([Nikita Taranov](https://github.com/nickitat)).
+* Backported in [#67529](https://github.com/ClickHouse/ClickHouse/issues/67529): Reduce max time of 00763_long_lock_buffer_alter_destination_table. [#67185](https://github.com/ClickHouse/ClickHouse/pull/67185) ([Raúl Marín](https://github.com/Algunenano)).
+* Backported in [#67803](https://github.com/ClickHouse/ClickHouse/issues/67803): Disable some Dynamic tests under sanitizers, rewrite 03202_dynamic_null_map_subcolumn to sql. [#67359](https://github.com/ClickHouse/ClickHouse/pull/67359) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#67643](https://github.com/ClickHouse/ClickHouse/issues/67643): [Green CI] Fix potentially flaky test_mask_sensitive_info integration test. [#67506](https://github.com/ClickHouse/ClickHouse/pull/67506) ([Alexey Katsman](https://github.com/alexkats)).
+* Backported in [#67609](https://github.com/ClickHouse/ClickHouse/issues/67609): Fix test_zookeeper_config_load_balancing after adding the xdist worker name to the instance. [#67590](https://github.com/ClickHouse/ClickHouse/pull/67590) ([Pablo Marcos](https://github.com/pamarcos)).
+* Backported in [#67871](https://github.com/ClickHouse/ClickHouse/issues/67871): Fix 02434_cancel_insert_when_client_dies. [#67600](https://github.com/ClickHouse/ClickHouse/pull/67600) ([vdimir](https://github.com/vdimir)).
+* Backported in [#67704](https://github.com/ClickHouse/ClickHouse/issues/67704): Fix 02910_bad_logs_level_in_local in fast tests. [#67603](https://github.com/ClickHouse/ClickHouse/pull/67603) ([Raúl Marín](https://github.com/Algunenano)).
+* Backported in [#67689](https://github.com/ClickHouse/ClickHouse/issues/67689): Fix 01605_adaptive_granularity_block_borders. [#67605](https://github.com/ClickHouse/ClickHouse/pull/67605) ([Nikita Taranov](https://github.com/nickitat)).
+* Backported in [#67827](https://github.com/ClickHouse/ClickHouse/issues/67827): Try fix 03143_asof_join_ddb_long. [#67620](https://github.com/ClickHouse/ClickHouse/pull/67620) ([Nikita Taranov](https://github.com/nickitat)).
+* Backported in [#67892](https://github.com/ClickHouse/ClickHouse/issues/67892): Revert "Merge pull request [#66510](https://github.com/ClickHouse/ClickHouse/issues/66510) from canhld94/fix_trivial_count_non_deterministic_func". [#67800](https://github.com/ClickHouse/ClickHouse/pull/67800) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#68081](https://github.com/ClickHouse/ClickHouse/issues/68081): Add an explicit error for `ALTER MODIFY SQL SECURITY` on non-view tables. [#67953](https://github.com/ClickHouse/ClickHouse/pull/67953) ([pufit](https://github.com/pufit)).
+* Update version after release. [#68044](https://github.com/ClickHouse/ClickHouse/pull/68044) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Backported in [#68269](https://github.com/ClickHouse/ClickHouse/issues/68269): [Green CI] Fix test 01903_correct_block_size_prediction_with_default. [#68203](https://github.com/ClickHouse/ClickHouse/pull/68203) ([Pablo Marcos](https://github.com/pamarcos)).
+* Backported in [#68432](https://github.com/ClickHouse/ClickHouse/issues/68432): tests: make 01600_parts_states_metrics_long better. [#68265](https://github.com/ClickHouse/ClickHouse/pull/68265) ([Azat Khuzhin](https://github.com/azat)).
+* Backported in [#68538](https://github.com/ClickHouse/ClickHouse/issues/68538): CI: Native build for package_aarch64. [#68457](https://github.com/ClickHouse/ClickHouse/pull/68457) ([Max K.](https://github.com/maxknv)).
+* Backported in [#68555](https://github.com/ClickHouse/ClickHouse/issues/68555): CI: Minor release workflow fix. [#68536](https://github.com/ClickHouse/ClickHouse/pull/68536) ([Max K.](https://github.com/maxknv)).
+

docs/changelogs/v24.7.4.51-stable.md

@@ -0,0 +1,36 @@
+---
+sidebar_position: 1
+sidebar_label: 2024
+---
+
+# 2024 Changelog
+
+### ClickHouse release v24.7.4.51-stable (70fe2f6fa52) FIXME as compared to v24.7.3.42-stable (63730bc4293)
+
+#### Bug Fix (user-visible misbehavior in an official stable release)
+* Backported in [#68232](https://github.com/ClickHouse/ClickHouse/issues/68232): Fixed `Not-ready Set` in some system tables when filtering using subqueries. [#66018](https://github.com/ClickHouse/ClickHouse/pull/66018) ([Michael Kolupaev](https://github.com/al13n321)).
+* Backported in [#68068](https://github.com/ClickHouse/ClickHouse/issues/68068): Fix boolean literals in query sent to external database (for engines like `PostgreSQL`). [#66282](https://github.com/ClickHouse/ClickHouse/pull/66282) ([vdimir](https://github.com/vdimir)).
+* Backported in [#68613](https://github.com/ClickHouse/ClickHouse/issues/68613): Fixes [#66026](https://github.com/ClickHouse/ClickHouse/issues/66026). Avoid unresolved table function arguments traversal in `ReplaceTableNodeToDummyVisitor`. [#67522](https://github.com/ClickHouse/ClickHouse/pull/67522) ([Dmitry Novik](https://github.com/novikd)).
+* Backported in [#68278](https://github.com/ClickHouse/ClickHouse/issues/68278): Fix inserting into stream like engines (Kafka, RabbitMQ, NATS) through HTTP interface. [#67554](https://github.com/ClickHouse/ClickHouse/pull/67554) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#68040](https://github.com/ClickHouse/ClickHouse/issues/68040): Fix creation of view with recursive CTE. [#67587](https://github.com/ClickHouse/ClickHouse/pull/67587) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
+* Backported in [#68038](https://github.com/ClickHouse/ClickHouse/issues/68038): Fix crash on `percent_rank`. `percent_rank`'s default frame type is changed to `range unbounded preceding and unbounded following`. `IWindowFunction`'s default window frame is considered and now window functions without window frame definition in sql can be put into different `WindowTransfomer`s properly. [#67661](https://github.com/ClickHouse/ClickHouse/pull/67661) ([lgbo](https://github.com/lgbo-ustc)).
+* Backported in [#68224](https://github.com/ClickHouse/ClickHouse/issues/68224): Fix wrong `count()` result when there is non-deterministic function in predicate. [#67922](https://github.com/ClickHouse/ClickHouse/pull/67922) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Backported in [#68095](https://github.com/ClickHouse/ClickHouse/issues/68095): Fixed the calculation of the maximum thread soft limit in containerized environments where the usable CPU count is limited. [#67963](https://github.com/ClickHouse/ClickHouse/pull/67963) ([Robert Schulze](https://github.com/rschu1ze)).
+* Backported in [#68126](https://github.com/ClickHouse/ClickHouse/issues/68126): Fixed skipping of untouched parts in mutations with new analyzer. Previously with enabled analyzer data in part could be rewritten by mutation even if mutation doesn't affect this part according to predicate. [#68052](https://github.com/ClickHouse/ClickHouse/pull/68052) ([Anton Popov](https://github.com/CurtizJ)).
+* Backported in [#68223](https://github.com/ClickHouse/ClickHouse/issues/68223): Fixed a NULL pointer dereference, triggered by a specially crafted query, that crashed the server via hopEnd, hopStart, tumbleEnd, and tumbleStart. [#68098](https://github.com/ClickHouse/ClickHouse/pull/68098) ([Salvatore Mesoraca](https://github.com/aiven-sal)).
+* Backported in [#68175](https://github.com/ClickHouse/ClickHouse/issues/68175): Removes an incorrect optimization to remove sorting in subqueries that use `OFFSET`. Fixes [#67906](https://github.com/ClickHouse/ClickHouse/issues/67906). [#68099](https://github.com/ClickHouse/ClickHouse/pull/68099) ([Graham Campbell](https://github.com/GrahamCampbell)).
+* Backported in [#68341](https://github.com/ClickHouse/ClickHouse/issues/68341): Try fix postgres crash when query is cancelled. [#68288](https://github.com/ClickHouse/ClickHouse/pull/68288) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Backported in [#68398](https://github.com/ClickHouse/ClickHouse/issues/68398): Fix missing sync replica mode in query `SYSTEM SYNC REPLICA`. [#68326](https://github.com/ClickHouse/ClickHouse/pull/68326) ([Duc Canh Le](https://github.com/canhld94)).
+* Backported in [#68669](https://github.com/ClickHouse/ClickHouse/issues/68669): Fix `LOGICAL_ERROR`s when functions `sipHash64Keyed`, `sipHash128Keyed`, or `sipHash128ReferenceKeyed` are applied to empty arrays or tuples. [#68630](https://github.com/ClickHouse/ClickHouse/pull/68630) ([Robert Schulze](https://github.com/rschu1ze)).
+
+#### NOT FOR CHANGELOG / INSIGNIFICANT
+
+* Backported in [#67803](https://github.com/ClickHouse/ClickHouse/issues/67803): Disable some Dynamic tests under sanitizers, rewrite 03202_dynamic_null_map_subcolumn to sql. [#67359](https://github.com/ClickHouse/ClickHouse/pull/67359) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#68081](https://github.com/ClickHouse/ClickHouse/issues/68081): Add an explicit error for `ALTER MODIFY SQL SECURITY` on non-view tables. [#67953](https://github.com/ClickHouse/ClickHouse/pull/67953) ([pufit](https://github.com/pufit)).
+* Update version after release. [#68044](https://github.com/ClickHouse/ClickHouse/pull/68044) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Backported in [#68269](https://github.com/ClickHouse/ClickHouse/issues/68269): [Green CI] Fix test 01903_correct_block_size_prediction_with_default. [#68203](https://github.com/ClickHouse/ClickHouse/pull/68203) ([Pablo Marcos](https://github.com/pamarcos)).
+* Backported in [#68432](https://github.com/ClickHouse/ClickHouse/issues/68432): tests: make 01600_parts_states_metrics_long better. [#68265](https://github.com/ClickHouse/ClickHouse/pull/68265) ([Azat Khuzhin](https://github.com/azat)).
+* Backported in [#68538](https://github.com/ClickHouse/ClickHouse/issues/68538): CI: Native build for package_aarch64. [#68457](https://github.com/ClickHouse/ClickHouse/pull/68457) ([Max K.](https://github.com/maxknv)).
+* Backported in [#68555](https://github.com/ClickHouse/ClickHouse/issues/68555): CI: Minor release workflow fix. [#68536](https://github.com/ClickHouse/ClickHouse/pull/68536) ([Max K.](https://github.com/maxknv)).
+* Backported in [#68760](https://github.com/ClickHouse/ClickHouse/issues/68760): To make patch release possible from every commit on release branch, package_debug build is required and must not be skipped. [#68750](https://github.com/ClickHouse/ClickHouse/pull/68750) ([Max K.](https://github.com/maxknv)).
+

docs/changelogs/v24.8.1.2684-lts.md

@@ -0,0 +1,525 @@
+---
+sidebar_position: 1
+sidebar_label: 2024
+---
+
+# 2024 Changelog
+
+### ClickHouse release v24.8.1.2684-lts (161c62fd295) FIXME as compared to v24.8.1.1-new (3f8b27d7acc)
+
+#### Backward Incompatible Change
+* `clickhouse-client` and `clickhouse-local` now default to multi-query mode (instead single-query mode). As an example, `clickhouse-client -q "SELECT 1; SELECT 2"` now works, whereas users previously had to add `--multiquery` (or `-n`). The `--multiquery/-n` switch became obsolete. INSERT queries in multi-query statements are treated specially based on their FORMAT clause: If the FORMAT is `VALUES` (the most common case), the end of the INSERT statement is represented by a trailing semicolon `;` at the end of the query. For all other FORMATs (e.g. `CSV` or `JSONEachRow`), the end of the INSERT statement is represented by two newlines `\n\n` at the end of the query. [#63898](https://github.com/ClickHouse/ClickHouse/pull/63898) ([FFish](https://github.com/wxybear)).
+* In previous versions, it was possible to use an alternative syntax for `LowCardinality` data types by appending `WithDictionary` to the name of the data type. It was an initial working implementation, and it was never documented or exposed to the public. Now, it is deprecated. If you have used this syntax, you have to ALTER your tables and rename the data types to `LowCardinality`. [#66842](https://github.com/ClickHouse/ClickHouse/pull/66842) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix logical errors with storage `Buffer` used with distributed destination table. It's a backward incompatible change: queries using `Buffer` with a distributed destination table may stop working if the table appears more than once in the query (e.g., in a self-join). [#67015](https://github.com/ClickHouse/ClickHouse/pull/67015) ([vdimir](https://github.com/vdimir)).
+* In previous versions, calling functions for random distributions based on the Gamma function (such as Chi-Squared, Student, Fisher) with negative arguments close to zero led to a long computation or an infinite loop. In the new version, calling these functions with zero or negative arguments will produce an exception. This closes [#67297](https://github.com/ClickHouse/ClickHouse/issues/67297). [#67326](https://github.com/ClickHouse/ClickHouse/pull/67326) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* The system table `text_log` is enabled by default. This is fully compatible with previous versions, but you may notice subtly increased disk usage on the local disk (this system table takes a tiny amount of disk space). [#67428](https://github.com/ClickHouse/ClickHouse/pull/67428) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* In previous versions, `arrayWithConstant` can be slow if asked to generate very large arrays. In the new version, it is limited to 1 GB per array. This closes [#32754](https://github.com/ClickHouse/ClickHouse/issues/32754). [#67741](https://github.com/ClickHouse/ClickHouse/pull/67741) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix REPLACE modifier formatting (forbid omitting brackets). [#67774](https://github.com/ClickHouse/ClickHouse/pull/67774) ([Azat Khuzhin](https://github.com/azat)).
+* Backported in [#68349](https://github.com/ClickHouse/ClickHouse/issues/68349): Reimplement Dynamic type. Now when the limit of dynamic data types is reached new types are not casted to String but stored in a special data structure in binary format with binary encoded data type. Now any type ever inserted into Dynamic column can be read from it as subcolumn. [#68132](https://github.com/ClickHouse/ClickHouse/pull/68132) ([Kruglov Pavel](https://github.com/Avogar)).
+
+#### New Feature
+* Add new experimental Kafka storage engine to store offsets in Keeper instead of relying on committing them to Kafka. [#57625](https://github.com/ClickHouse/ClickHouse/pull/57625) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Add new TimeSeries table engine: - by default: ``` CREATE TABLE tbl ENGINE=TimeSeries ``` - or with specifying engines of its internal tables:. [#64183](https://github.com/ClickHouse/ClickHouse/pull/64183) ([Vitaly Baranov](https://github.com/vitlibar)).
+* Support more join strictnesses (`LEFT/RIGHT SEMI/ANTI/ANY JOIN`) with inequal conditions which involve columns from both left and right table. e.g. t1.y < t2.y (see setting `allow_experimental_join_condition`). [#64281](https://github.com/ClickHouse/ClickHouse/pull/64281) ([lgbo](https://github.com/lgbo-ustc)).
+* Add `_etag` virtual column for S3 table engine. Fixes [#65312](https://github.com/ClickHouse/ClickHouse/issues/65312). [#65386](https://github.com/ClickHouse/ClickHouse/pull/65386) ([skyoct](https://github.com/skyoct)).
+* This pull request introduces Hive-style partitioning for different engines (`File`, `URL`, `S3`, `AzureBlobStorage`, `HDFS`). Hive-style partitioning organizes data into partitioned sub-directories, making it efficient to query and manage large datasets. Currently, it only creates virtual columns with the appropriate name and data. The follow-up PR will introduce the appropriate data filtering (performance speedup). [#65997](https://github.com/ClickHouse/ClickHouse/pull/65997) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
+* Add function printf for spark compatiability. [#66257](https://github.com/ClickHouse/ClickHouse/pull/66257) ([李扬](https://github.com/taiyang-li)).
+* Backported in [#68450](https://github.com/ClickHouse/ClickHouse/issues/68450): Implement new JSON data type. [#66444](https://github.com/ClickHouse/ClickHouse/pull/66444) ([Kruglov Pavel](https://github.com/Avogar)).
+* Add a new server setting: disable_insertion_and_mutation Set it to true. This node will deny all insertions and mutations(Alter table delete/update/drop partition). Include async insertion. [#66519](https://github.com/ClickHouse/ClickHouse/pull/66519) ([Xu Jia](https://github.com/XuJia0210)).
+* Add options `restore_replace_external_engines_to_null` and `restore_replace_external_table_functions_to_null` to replace external engines and table_engines to Null engine that can be useful for testing. It should work for RESTORE and explicit table creation. [#66536](https://github.com/ClickHouse/ClickHouse/pull/66536) ([Ilya Yatsishin](https://github.com/qoega)).
+* Added support for reading MULTILINESTRING geometry in WKT format using function readWKTLineString. [#67647](https://github.com/ClickHouse/ClickHouse/pull/67647) ([Jacob Reckhard](https://github.com/jacobrec)).
+* Add a new table function `fuzzQuery`. This function allows the modification of a given query string with random variations. Example: `SELECT query FROM fuzzQuery('SELECT 1') LIMIT 5;`. [#67655](https://github.com/ClickHouse/ClickHouse/pull/67655) ([pufit](https://github.com/pufit)).
+* Support query `DROP DETACHED PARTITION ALL` to drop all detached partitions. [#67885](https://github.com/ClickHouse/ClickHouse/pull/67885) ([Duc Canh Le](https://github.com/canhld94)).
+* Added a tagging (namespace) mechanism for the query cache. The same queries with different tags are considered different by the query cache. Example: `SELECT 1 SETTINGS use_query_cache = 1, query_cache_tag = 'abc'` and `SELECT 1 SETTINGS use_query_cache = 1, query_cache_tag = 'def'` now create different query cache entries. [#68235](https://github.com/ClickHouse/ClickHouse/pull/68235) ([sakulali](https://github.com/sakulali)).
+
+#### Performance Improvement
+* Use adaptive read task size calculation method (adaptive meaning it depends on read column sizes) for parallel replicas. [#60377](https://github.com/ClickHouse/ClickHouse/pull/60377) ([Nikita Taranov](https://github.com/nickitat)).
+* Store the `plain_rewritable` disk directory metadata in `__meta` layout, separately from the merge tree data in the object storage. Move the `plain_rewritable` disk to a flat directory structure. [#65751](https://github.com/ClickHouse/ClickHouse/pull/65751) ([Julia Kartseva](https://github.com/jkartseva)).
+* Enable `compile_expressions` (JIT compiler for fragments of ordinary expressions) by default. This closes [#51264](https://github.com/ClickHouse/ClickHouse/issues/51264) and [#56386](https://github.com/ClickHouse/ClickHouse/issues/56386). [#66486](https://github.com/ClickHouse/ClickHouse/pull/66486) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Improve columns squashing for String/Array/Map/Variant/Dynamic types by reserving required memory in advance for all subcolumns. [#67043](https://github.com/ClickHouse/ClickHouse/pull/67043) ([Kruglov Pavel](https://github.com/Avogar)).
+* Speed up system flush logs, flush logs on shutdown. [#67472](https://github.com/ClickHouse/ClickHouse/pull/67472) ([Sema Checherinda](https://github.com/CheSema)).
+* Backported in [#68496](https://github.com/ClickHouse/ClickHouse/issues/68496): Improved overall performance of merges by reducing the overhead of scheduling steps of merges. [#68016](https://github.com/ClickHouse/ClickHouse/pull/68016) ([Anton Popov](https://github.com/CurtizJ)).
+* Setting `optimize_functions_to_subcolumns` is enabled by default. [#68053](https://github.com/ClickHouse/ClickHouse/pull/68053) ([Anton Popov](https://github.com/CurtizJ)).
+
+#### Improvement
+* ClickHouse server now supports new setting `max_keep_alive_requests`. For keep-alive HTTP connections to the server it works in tandem with `keep_alive_timeout` - if idle timeout not expired but there already more than `max_keep_alive_requests` requests done through the given connection - it will be closed by the server. [#61793](https://github.com/ClickHouse/ClickHouse/pull/61793) ([Nikita Taranov](https://github.com/nickitat)).
+* As in the new version, SOURCES are checked based on Table Engine logic, even grant table engine is disabled by default, if a source is not granted, a prompt of table engine would popup instead, which is misleading. [#65419](https://github.com/ClickHouse/ClickHouse/pull/65419) ([jsc0218](https://github.com/jsc0218)).
+* Added statistics type `count_min` (count-min sketches) which provide selectivity estimations for equality predicates like `col = 'val'`. Supported data types are string, date, datatime and numeric types. [#65521](https://github.com/ClickHouse/ClickHouse/pull/65521) ([JackyWoo](https://github.com/JackyWoo)).
+* Do not pass logs for keeper explicitly in the image to allow overriding. [#65564](https://github.com/ClickHouse/ClickHouse/pull/65564) ([Azat Khuzhin](https://github.com/azat)).
+* Use `Atomic` database by default in `clickhouse-local`. Address items 1 and 5 from [#50647](https://github.com/ClickHouse/ClickHouse/issues/50647). Closes [#44817](https://github.com/ClickHouse/ClickHouse/issues/44817). [#65860](https://github.com/ClickHouse/ClickHouse/pull/65860) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Add the `rows_before_aggregation_at_least` statistic to the query response when `rows_before_aggregation` is enabled. This statistic represents the number of rows read before aggregation. In the context of a distributed query, when using the `group by` or `max` aggregation function without a `limit`, `rows_before_aggregation_at_least` can reflect the number of rows hit by the query. [#66084](https://github.com/ClickHouse/ClickHouse/pull/66084) ([morning-color](https://github.com/morning-color)).
+* Introduced `use_same_password_for_base_backup` settings for `BACKUP` and `RESTORE` queries, allowing to create and restore incremental backups to/from password protected archives. [#66214](https://github.com/ClickHouse/ClickHouse/pull/66214) ([Samuele](https://github.com/sguerrini97)).
+* Ignore async_load_databases for ATTACH query (previously it was possible for ATTACH to return before the tables had been attached). [#66240](https://github.com/ClickHouse/ClickHouse/pull/66240) ([Azat Khuzhin](https://github.com/azat)).
+* [Replicated]MergeTreeSink has to properly cancel its delayed_chunk on `onCancel()` method. [#66279](https://github.com/ClickHouse/ClickHouse/pull/66279) ([Sema Checherinda](https://github.com/CheSema)).
+* Added logs and metrics for rejected connections (where there are not enough resources). [#66410](https://github.com/ClickHouse/ClickHouse/pull/66410) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Setting `allow_experimental_analyzer` is renamed to `enable_analyzer`. The old name is preserved in a form of an alias. [#66438](https://github.com/ClickHouse/ClickHouse/pull/66438) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
+* Support true UUID type for MongoDB engine. [#66671](https://github.com/ClickHouse/ClickHouse/pull/66671) ([Azat Khuzhin](https://github.com/azat)).
+* Added a new `MergeTree` setting `deduplicate_merge_projection_mode` to control the projections during merges (for specific engines) and `OPTIMIZE DEDUPLICATE` query. Supported options: `throw` (throw an exception in case the projection is not fully supported for *MergeTree engine), `drop` (remove projection during merge if it can't be merged itself consistently) and `rebuild` (rebuild projection from scratch, which is a heavy operation). [#66672](https://github.com/ClickHouse/ClickHouse/pull/66672) ([jsc0218](https://github.com/jsc0218)).
+* Add replication lag and recovery time metrics. [#66703](https://github.com/ClickHouse/ClickHouse/pull/66703) ([Miсhael Stetsyuk](https://github.com/mstetsyuk)).
+* Add S3DiskNoKeyErrors metric. [#66704](https://github.com/ClickHouse/ClickHouse/pull/66704) ([Miсhael Stetsyuk](https://github.com/mstetsyuk)).
+* Ensure COMMENT clause works for all table engines. [#66832](https://github.com/ClickHouse/ClickHouse/pull/66832) ([Joe Lynch](https://github.com/joelynch)).
+* Update the usage of error code `BAD_ARGUMENTS` and `ILLEGAL_TYPE_OF_ARGUMENT` by more accurate error codes when appropriate. [#66851](https://github.com/ClickHouse/ClickHouse/pull/66851) ([Yohann Jardin](https://github.com/yohannj)).
+* Function `mapFromArrays` now accepts `Map(K, V)` as first argument, for example: `SELECT mapFromArrays(map('a', 4, 'b', 4), ['aa', 'bb'])` now works and returns `{('a',4):'aa',('b',4):'bb'}`. Also, if the 1st argument is an Array, it can now also be of type `Array(Nullable(T))` or `Array(LowCardinality(Nullable(T)))` as long as the actual array values are not `NULL`. [#67103](https://github.com/ClickHouse/ClickHouse/pull/67103) ([李扬](https://github.com/taiyang-li)).
+* Read configuration for clickhouse-local from ~/.clickhouse-local. [#67135](https://github.com/ClickHouse/ClickHouse/pull/67135) ([Azat Khuzhin](https://github.com/azat)).
+* Rename setting `input_format_orc_read_use_writer_time_zone` to `input_format_orc_reader_timezone` and allow the user to set the reader timezone. [#67175](https://github.com/ClickHouse/ClickHouse/pull/67175) ([kevinyhzou](https://github.com/KevinyhZou)).
+* Decrease level of 'Socket is not connected' error when HTTP connection immediately reset by peer after connecting, close [#34218](https://github.com/ClickHouse/ClickHouse/issues/34218). [#67177](https://github.com/ClickHouse/ClickHouse/pull/67177) ([vdimir](https://github.com/vdimir)).
+* Speed up tables removal for `DROP DATABASE` query, increased the default value for `database_catalog_drop_table_concurrency` to 16. [#67228](https://github.com/ClickHouse/ClickHouse/pull/67228) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
+* Add ability to load dashboards for system.dashboards from config (once set, they overrides the default dashboards preset). [#67232](https://github.com/ClickHouse/ClickHouse/pull/67232) ([Azat Khuzhin](https://github.com/azat)).
+* The window functions in SQL are traditionally in snake case. ClickHouse uses camelCase, so new aliases `denseRank()` and `percentRank()` have been created. These new functions can be called the exact same as the original `dense_rank()` and `percent_rank()` functions. Both snake case and camelCase syntaxes remain usable. A new test for each of the functions has been added as well. This closes [#67042](https://github.com/ClickHouse/ClickHouse/issues/67042) . [#67334](https://github.com/ClickHouse/ClickHouse/pull/67334) ([Peter Nguyen](https://github.com/petern48)).
+* Autodetect configuration file format if is not .xml, .yml or .yaml. If the file begins with < it might be XML, otherwise it might be YAML. Non regular file just parse as XML such as PIPE: /dev/fd/X. [#67391](https://github.com/ClickHouse/ClickHouse/pull/67391) ([sakulali](https://github.com/sakulali)).
+* Functions `formatDateTime` and `formatDateTimeInJodaSyntax` now treat their format parameter as optional. If it is not specified, format strings `%Y-%m-%d %H:%i:%s` and `yyyy-MM-dd HH:mm:ss` are assumed. Example: `SELECT parseDateTime('2021-01-04 23:12:34')` now returns DateTime value `2021-01-04 23:12:34` (previously, this threw an exception). [#67399](https://github.com/ClickHouse/ClickHouse/pull/67399) ([Robert Schulze](https://github.com/rschu1ze)).
+* Automatically retry Keeper requests in KeeperMap if they happen because of timeout or connection loss. [#67448](https://github.com/ClickHouse/ClickHouse/pull/67448) ([Antonio Andelic](https://github.com/antonio2368)).
+* Rework usage of custom table's disks. [#67684](https://github.com/ClickHouse/ClickHouse/pull/67684) ([Sema Checherinda](https://github.com/CheSema)).
+* Various improvements in the advanced dashboard. This closes [#67697](https://github.com/ClickHouse/ClickHouse/issues/67697). This closes [#63407](https://github.com/ClickHouse/ClickHouse/issues/63407). This closes [#51129](https://github.com/ClickHouse/ClickHouse/issues/51129). This closes [#61204](https://github.com/ClickHouse/ClickHouse/issues/61204). [#67701](https://github.com/ClickHouse/ClickHouse/pull/67701) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Avoid allocate too much capacity for array column while writing orc & some minor refactors to make code cleaner. Performance speeds up 15% for array column. [#67879](https://github.com/ClickHouse/ClickHouse/pull/67879) ([李扬](https://github.com/taiyang-li)).
+* Support OPTIMIZE query on Join table engine to reduce Join tables memory footprint. [#67883](https://github.com/ClickHouse/ClickHouse/pull/67883) ([Duc Canh Le](https://github.com/canhld94)).
+* Add replication lag and recovery time metrics. [#67913](https://github.com/ClickHouse/ClickHouse/pull/67913) ([Miсhael Stetsyuk](https://github.com/mstetsyuk)).
+* Add '-no-pie' to aarch64 Linux builds to allow proper introspection and symbolizing of stacktraces after a ClickHouse restart. [#67916](https://github.com/ClickHouse/ClickHouse/pull/67916) ([filimonov](https://github.com/filimonov)).
+* Backported in [#68481](https://github.com/ClickHouse/ClickHouse/issues/68481): Added profile events for merges and mutations for better introspection. [#68015](https://github.com/ClickHouse/ClickHouse/pull/68015) ([Anton Popov](https://github.com/CurtizJ)).
+* Fix settings/current_database in system.processes for async BACKUP/RESTORE. [#68163](https://github.com/ClickHouse/ClickHouse/pull/68163) ([Azat Khuzhin](https://github.com/azat)).
+* Remove unnecessary logs for MergeTree that doesn't support replication. [#68238](https://github.com/ClickHouse/ClickHouse/pull/68238) ([Daniil Ivanik](https://github.com/divanik)).
+* Backported in [#68430](https://github.com/ClickHouse/ClickHouse/issues/68430): Improve schema inference of date times. Now DateTime64 used only when date time has fractional part, otherwise regular DateTime is used. Inference of Date/DateTime is more strict now, especially when `date_time_input_format='best_effort'` to avoid inferring date times from strings in corner cases. [#68382](https://github.com/ClickHouse/ClickHouse/pull/68382) ([Kruglov Pavel](https://github.com/Avogar)).
+
+#### Bug Fix (user-visible misbehavior in an official stable release)
+* Fixed `Not-ready Set` in some system tables when filtering using subqueries. [#66018](https://github.com/ClickHouse/ClickHouse/pull/66018) ([Michael Kolupaev](https://github.com/al13n321)).
+* Fixed reading of subcolumns after `ALTER ADD COLUMN` query. [#66243](https://github.com/ClickHouse/ClickHouse/pull/66243) ([Anton Popov](https://github.com/CurtizJ)).
+* Fix boolean literals in query sent to external database (for engines like `PostgreSQL`). [#66282](https://github.com/ClickHouse/ClickHouse/pull/66282) ([vdimir](https://github.com/vdimir)).
+* Fix formatting of query with aliased JOIN ON expression, e.g. `... JOIN t2 ON (x = y) AS e ORDER BY x` should be formatted as `... JOIN t2 ON ((x = y) AS e) ORDER BY x`. [#66312](https://github.com/ClickHouse/ClickHouse/pull/66312) ([vdimir](https://github.com/vdimir)).
+* Fix cluster() for inter-server secret (preserve initial user as before). [#66364](https://github.com/ClickHouse/ClickHouse/pull/66364) ([Azat Khuzhin](https://github.com/azat)).
+* Fix possible runtime error while converting Array field with nulls to Array(Variant). [#66727](https://github.com/ClickHouse/ClickHouse/pull/66727) ([Kruglov Pavel](https://github.com/Avogar)).
+* Fix for occasional deadlock in Context::getDDLWorker. [#66843](https://github.com/ClickHouse/ClickHouse/pull/66843) ([Alexander Gololobov](https://github.com/davenger)).
+* Fix creating KeeperMap table after an incomplete drop. [#66865](https://github.com/ClickHouse/ClickHouse/pull/66865) ([Antonio Andelic](https://github.com/antonio2368)).
+* Fix broken part error while restoring to a `s3_plain_rewritable` disk. [#66881](https://github.com/ClickHouse/ClickHouse/pull/66881) ([Vitaly Baranov](https://github.com/vitlibar)).
+* In rare cases ClickHouse could consider parts as broken because of some unexpected projections on disk. Now it's fixed. [#66898](https://github.com/ClickHouse/ClickHouse/pull/66898) ([alesapin](https://github.com/alesapin)).
+* Fix invalid format detection in schema inference that could lead to logical error Format {} doesn't support schema inference. [#66899](https://github.com/ClickHouse/ClickHouse/pull/66899) ([Kruglov Pavel](https://github.com/Avogar)).
+* Fix possible deadlock on query cancel with parallel replicas. [#66905](https://github.com/ClickHouse/ClickHouse/pull/66905) ([Nikita Taranov](https://github.com/nickitat)).
+* Forbid create as select even when database_replicated_allow_heavy_create is set. It was unconditionally forbidden in 23.12 and accidentally allowed under the setting in unreleased 24.7. [#66980](https://github.com/ClickHouse/ClickHouse/pull/66980) ([vdimir](https://github.com/vdimir)).
+* Reading from the `numbers` could wrongly throw an exception when the `max_rows_to_read` limit was set. This closes [#66992](https://github.com/ClickHouse/ClickHouse/issues/66992). [#66996](https://github.com/ClickHouse/ClickHouse/pull/66996) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Add proper type conversion to lagInFrame and leadInFrame window functions - fixes msan test. [#67091](https://github.com/ClickHouse/ClickHouse/pull/67091) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
+* Only relevant to the experimental Variant data type. Fix crash with Variant + AggregateFunction type. [#67122](https://github.com/ClickHouse/ClickHouse/pull/67122) ([Kruglov Pavel](https://github.com/Avogar)).
+* TRUNCATE DATABASE used to stop replication as if it was a DROP DATABASE query, it's fixed. [#67129](https://github.com/ClickHouse/ClickHouse/pull/67129) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Use a separate client context in `clickhouse-local`. [#67133](https://github.com/ClickHouse/ClickHouse/pull/67133) ([Vitaly Baranov](https://github.com/vitlibar)).
+* Fix error `Cannot convert column because it is non constant in source stream but must be constant in result.` for a query that reads from the `Merge` table over the `Distriburted` table with one shard. [#67146](https://github.com/ClickHouse/ClickHouse/pull/67146) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Correct behavior of `ORDER BY all` with disabled `enable_order_by_all` and parallel replicas (distributed queries as well). [#67153](https://github.com/ClickHouse/ClickHouse/pull/67153) ([Igor Nikonov](https://github.com/devcrafter)).
+* Fix wrong usage of input_format_max_bytes_to_read_for_schema_inference in schema cache. [#67157](https://github.com/ClickHouse/ClickHouse/pull/67157) ([Kruglov Pavel](https://github.com/Avogar)).
+* Fix the memory leak for count distinct, when exception issued during group by single nullable key. [#67171](https://github.com/ClickHouse/ClickHouse/pull/67171) ([Jet He](https://github.com/compasses)).
+* This closes [#67156](https://github.com/ClickHouse/ClickHouse/issues/67156). This closes [#66447](https://github.com/ClickHouse/ClickHouse/issues/66447). The bug was introduced in https://github.com/ClickHouse/ClickHouse/pull/62907. [#67178](https://github.com/ClickHouse/ClickHouse/pull/67178) ([Maksim Kita](https://github.com/kitaisreal)).
+* Fix crash in DistributedAsyncInsert when connection is empty. [#67219](https://github.com/ClickHouse/ClickHouse/pull/67219) ([Pablo Marcos](https://github.com/pamarcos)).
+* Fix error `Conversion from AggregateFunction(name, Type) to AggregateFunction(name, Nullable(Type)) is not supported`. The bug was caused by the `optimize_rewrite_aggregate_function_with_if` optimization. Fixes [#67112](https://github.com/ClickHouse/ClickHouse/issues/67112). [#67229](https://github.com/ClickHouse/ClickHouse/pull/67229) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Fix hung query when using empty tuple as lhs of function IN. [#67295](https://github.com/ClickHouse/ClickHouse/pull/67295) ([Duc Canh Le](https://github.com/canhld94)).
+* Fix crash of `uniq` and `uniqTheta ` with `tuple()` argument. Closes [#67303](https://github.com/ClickHouse/ClickHouse/issues/67303). [#67306](https://github.com/ClickHouse/ClickHouse/pull/67306) ([flynn](https://github.com/ucasfl)).
+* It was possible to create a very deep nested JSON data that triggered stack overflow while skipping unknown fields. This closes [#67292](https://github.com/ClickHouse/ClickHouse/issues/67292). [#67324](https://github.com/ClickHouse/ClickHouse/pull/67324) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix attaching ReplicatedMergeTree table after exception during startup. [#67360](https://github.com/ClickHouse/ClickHouse/pull/67360) ([Antonio Andelic](https://github.com/antonio2368)).
+* Fix segfault caused by incorrectly detaching from thread group in `Aggregator`. [#67385](https://github.com/ClickHouse/ClickHouse/pull/67385) ([Antonio Andelic](https://github.com/antonio2368)).
+* Fix one more case when a non-deterministic function is specified in PK. [#67395](https://github.com/ClickHouse/ClickHouse/pull/67395) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Fixed `bloom_filter` index breaking queries with mildly weird conditions like `(k=2)=(k=2)` or `has([1,2,3], k)`. [#67423](https://github.com/ClickHouse/ClickHouse/pull/67423) ([Michael Kolupaev](https://github.com/al13n321)).
+* Correctly parse file name/URI containing `::` if it's not an archive. [#67433](https://github.com/ClickHouse/ClickHouse/pull/67433) ([Antonio Andelic](https://github.com/antonio2368)).
+* Fix wait for tasks in ~WriteBufferFromS3 in case WriteBuffer was cancelled. [#67459](https://github.com/ClickHouse/ClickHouse/pull/67459) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Protect temporary part directories from removing during RESTORE. [#67491](https://github.com/ClickHouse/ClickHouse/pull/67491) ([Vitaly Baranov](https://github.com/vitlibar)).
+* Fix execution of nested short-circuit functions. [#67520](https://github.com/ClickHouse/ClickHouse/pull/67520) ([Kruglov Pavel](https://github.com/Avogar)).
+* Fixes [#66026](https://github.com/ClickHouse/ClickHouse/issues/66026). Avoid unresolved table function arguments traversal in `ReplaceTableNodeToDummyVisitor`. [#67522](https://github.com/ClickHouse/ClickHouse/pull/67522) ([Dmitry Novik](https://github.com/novikd)).
+* Fix `Logical error: Expected the argument №N of type T to have X rows, but it has 0`. The error could happen in a remote query with constant expression in `GROUP BY` (with a new analyzer). [#67536](https://github.com/ClickHouse/ClickHouse/pull/67536) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Fix join on tuple with NULLs: Some queries with the new analyzer and `NULL` inside the tuple in the `JOIN ON` section returned incorrect results. [#67538](https://github.com/ClickHouse/ClickHouse/pull/67538) ([vdimir](https://github.com/vdimir)).
+* Fix redundant reschedule of FileCache::freeSpaceRatioKeepingThreadFunc() in case of full non-evictable cache. [#67540](https://github.com/ClickHouse/ClickHouse/pull/67540) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Fix inserting into stream like engines (Kafka, RabbitMQ, NATS) through HTTP interface. [#67554](https://github.com/ClickHouse/ClickHouse/pull/67554) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Fix for function `toStartOfWeek` which returned the wrong result with a small `DateTime64` value. [#67558](https://github.com/ClickHouse/ClickHouse/pull/67558) ([Yarik Briukhovetskyi](https://github.com/yariks5s)).
+* Fix creation of view with recursive CTE. [#67587](https://github.com/ClickHouse/ClickHouse/pull/67587) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
+* Fix `Logical error: 'file_offset_of_buffer_end <= read_until_position'` in filesystem cache. Closes [#57508](https://github.com/ClickHouse/ClickHouse/issues/57508). [#67623](https://github.com/ClickHouse/ClickHouse/pull/67623) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Fixes [#62282](https://github.com/ClickHouse/ClickHouse/issues/62282). Removed the call to `convertFieldToString()` and added datatype specific serialization code. Parameterized view substitution was broken for multiple datatypes when parameter value was a function or expression returning datatype instance. [#67654](https://github.com/ClickHouse/ClickHouse/pull/67654) ([Shankar](https://github.com/shiyer7474)).
+* Fix crash on `percent_rank`. `percent_rank`'s default frame type is changed to `range unbounded preceding and unbounded following`. `IWindowFunction`'s default window frame is considered and now window functions without window frame definition in sql can be put into different `WindowTransfomer`s properly. [#67661](https://github.com/ClickHouse/ClickHouse/pull/67661) ([lgbo](https://github.com/lgbo-ustc)).
+* Fix reloading SQL UDFs with UNION. Previously, restarting the server could make UDF invalid. [#67665](https://github.com/ClickHouse/ClickHouse/pull/67665) ([Antonio Andelic](https://github.com/antonio2368)).
+* Fix possible logical error "Unexpected return type from if" with experimental Variant type and enabled setting `use_variant_as_common_type ` in function if with Tuples and Maps. [#67687](https://github.com/ClickHouse/ClickHouse/pull/67687) ([Kruglov Pavel](https://github.com/Avogar)).
+* Due to a bug in Linux Kernel, a query can hung in `TimerDescriptor::drain`. This closes [#37686](https://github.com/ClickHouse/ClickHouse/issues/37686). [#67702](https://github.com/ClickHouse/ClickHouse/pull/67702) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix completion of `RESTORE ON CLUSTER` command. [#67720](https://github.com/ClickHouse/ClickHouse/pull/67720) ([Vitaly Baranov](https://github.com/vitlibar)).
+* Fix dictionary hang in case of CANNOT_SCHEDULE_TASK while loading. [#67751](https://github.com/ClickHouse/ClickHouse/pull/67751) ([Azat Khuzhin](https://github.com/azat)).
+* Fix potential stack overflow in `JSONMergePatch` function. Renamed this function from `jsonMergePatch` to `JSONMergePatch` because the previous name was wrong. The previous name is still kept for compatibility. Improved diagnostic of errors in the function. This closes [#67304](https://github.com/ClickHouse/ClickHouse/issues/67304). [#67756](https://github.com/ClickHouse/ClickHouse/pull/67756) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Queries like `SELECT count() FROM t WHERE cast(c = 1 or c = 9999 AS Bool) SETTINGS use_skip_indexes=1` with bloom filter indexes on `c` now work correctly. [#67781](https://github.com/ClickHouse/ClickHouse/pull/67781) ([jsc0218](https://github.com/jsc0218)).
+* Fix wrong aggregation result in some queries with aggregation without keys and filter, close [#67419](https://github.com/ClickHouse/ClickHouse/issues/67419). [#67804](https://github.com/ClickHouse/ClickHouse/pull/67804) ([vdimir](https://github.com/vdimir)).
+* Validate experimental/suspicious data types in ALTER ADD/MODIFY COLUMN. [#67911](https://github.com/ClickHouse/ClickHouse/pull/67911) ([Kruglov Pavel](https://github.com/Avogar)).
+* Fix DateTime64 parsing after constant folding in distributed queries, close [#66773](https://github.com/ClickHouse/ClickHouse/issues/66773). [#67920](https://github.com/ClickHouse/ClickHouse/pull/67920) ([vdimir](https://github.com/vdimir)).
+* Fix wrong `count()` result when there is non-deterministic function in predicate. [#67922](https://github.com/ClickHouse/ClickHouse/pull/67922) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Fixed the calculation of the maximum thread soft limit in containerized environments where the usable CPU count is limited. [#67963](https://github.com/ClickHouse/ClickHouse/pull/67963) ([Robert Schulze](https://github.com/rschu1ze)).
+* Now ClickHouse doesn't consider part as broken if projection doesn't exist on disk but exists in `checksums.txt`. [#68003](https://github.com/ClickHouse/ClickHouse/pull/68003) ([alesapin](https://github.com/alesapin)).
+* Fixed skipping of untouched parts in mutations with new analyzer. Previously with enabled analyzer data in part could be rewritten by mutation even if mutation doesn't affect this part according to predicate. [#68052](https://github.com/ClickHouse/ClickHouse/pull/68052) ([Anton Popov](https://github.com/CurtizJ)).
+* Fixed a NULL pointer dereference, triggered by a specially crafted query, that crashed the server via hopEnd, hopStart, tumbleEnd, and tumbleStart. [#68098](https://github.com/ClickHouse/ClickHouse/pull/68098) ([Salvatore Mesoraca](https://github.com/aiven-sal)).
+* Removes an incorrect optimization to remove sorting in subqueries that use `OFFSET`. Fixes [#67906](https://github.com/ClickHouse/ClickHouse/issues/67906). [#68099](https://github.com/ClickHouse/ClickHouse/pull/68099) ([Graham Campbell](https://github.com/GrahamCampbell)).
+* Attempt to fix `Block structure mismatch in AggregatingStep stream: different types` for aggregate projection optimization. [#68107](https://github.com/ClickHouse/ClickHouse/pull/68107) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Backported in [#68343](https://github.com/ClickHouse/ClickHouse/issues/68343): Try fix postgres crash when query is cancelled. [#68288](https://github.com/ClickHouse/ClickHouse/pull/68288) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Backported in [#68400](https://github.com/ClickHouse/ClickHouse/issues/68400): Fix missing sync replica mode in query `SYSTEM SYNC REPLICA`. [#68326](https://github.com/ClickHouse/ClickHouse/pull/68326) ([Duc Canh Le](https://github.com/canhld94)).
+
+#### Build/Testing/Packaging Improvement
+* Improved `test_storage_s3` tests: increased `s3_max_single_read_retries` for read from "unstable" s3 source and allowed all tests to run multiple times in a row. [#66896](https://github.com/ClickHouse/ClickHouse/pull/66896) ([Ilya Yatsishin](https://github.com/qoega)).
+* Integration tests flaky check will not run each test case multiple times to find more issues in tests and make them more reliable. It is using `pytest-repeat` library to run test case multiple times for the same environment. It is important to cleanup tables and other entities in the end of a test case to pass. Repeat works much faster than several pytest runs as it starts necessary containers only once. [#66986](https://github.com/ClickHouse/ClickHouse/pull/66986) ([Ilya Yatsishin](https://github.com/qoega)).
+* Allow to use CLion with ClickHouse. In previous versions, CLion freezed for a minute on every keypress. This closes [#66994](https://github.com/ClickHouse/ClickHouse/issues/66994). [#66995](https://github.com/ClickHouse/ClickHouse/pull/66995) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Getauxval: avoid crash under sanitizer re-exec due to high aslr entropy. [#67081](https://github.com/ClickHouse/ClickHouse/pull/67081) ([Raúl Marín](https://github.com/Algunenano)).
+* Some parts of client code are extracted to a single file and highest possible level optimization is applied to them even for debug builds. This closes: [#65745](https://github.com/ClickHouse/ClickHouse/issues/65745). [#67215](https://github.com/ClickHouse/ClickHouse/pull/67215) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
+
+#### NO CL CATEGORY
+
+* Backported in [#68416](https://github.com/ClickHouse/ClickHouse/issues/68416):. [#68386](https://github.com/ClickHouse/ClickHouse/pull/68386) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+
+#### NO CL ENTRY
+
+* NO CL ENTRY:  'Revert "Fix for 992 and friends"'. [#66993](https://github.com/ClickHouse/ClickHouse/pull/66993) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* NO CL ENTRY:  'Revert "Revert "Fix for 992 and friends""'. [#67029](https://github.com/ClickHouse/ClickHouse/pull/67029) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* NO CL ENTRY:  'Revert "FuzzQuery table function"'. [#67040](https://github.com/ClickHouse/ClickHouse/pull/67040) ([Raúl Marín](https://github.com/Algunenano)).
+* NO CL ENTRY:  'Revert "Enable `compile_expressions` by default."'. [#67299](https://github.com/ClickHouse/ClickHouse/pull/67299) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* NO CL ENTRY:  'Revert "Slightly better calculation of primary index"'. [#67392](https://github.com/ClickHouse/ClickHouse/pull/67392) ([alesapin](https://github.com/alesapin)).
+* NO CL ENTRY:  'Revert "Add settings to replace external engines to Null during create"'. [#67507](https://github.com/ClickHouse/ClickHouse/pull/67507) ([Raúl Marín](https://github.com/Algunenano)).
+* NO CL ENTRY:  'Revert "Revert "Add settings to replace external engines to Null during create""'. [#67511](https://github.com/ClickHouse/ClickHouse/pull/67511) ([Ilya Yatsishin](https://github.com/qoega)).
+* NO CL ENTRY:  'Revert "Add replication lag and recovery time metrics"'. [#67731](https://github.com/ClickHouse/ClickHouse/pull/67731) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* NO CL ENTRY:  'Revert "Revert "Slightly better calculation of primary index""'. [#67846](https://github.com/ClickHouse/ClickHouse/pull/67846) ([Anton Popov](https://github.com/CurtizJ)).
+* NO CL ENTRY:  'Revert "CI: Strict job timeout 1.5h for tests, 2h for builds"'. [#67986](https://github.com/ClickHouse/ClickHouse/pull/67986) ([Max K.](https://github.com/maxknv)).
+* NO CL ENTRY:  'Revert "Bump rocksdb from v8.10 to v9.4 + enable jemalloc and liburing"'. [#68014](https://github.com/ClickHouse/ClickHouse/pull/68014) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
+* NO CL ENTRY:  'Revert "Use `Atomic` database by default in `clickhouse-local`"'. [#68023](https://github.com/ClickHouse/ClickHouse/pull/68023) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* NO CL ENTRY:  'Revert "Refactor tests for (experimental) statistics"'. [#68156](https://github.com/ClickHouse/ClickHouse/pull/68156) ([Alexander Tokmakov](https://github.com/tavplubix)).
+
+#### NOT FOR CHANGELOG / INSIGNIFICANT
+
+* CI: enable libfuzzer (fixing build and docker). [#61908](https://github.com/ClickHouse/ClickHouse/pull/61908) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
+* Initial implementation of vector similarity index. [#63675](https://github.com/ClickHouse/ClickHouse/pull/63675) ([Robert Schulze](https://github.com/rschu1ze)).
+* Update zlib-ng from 2.0.2 to 2.1.7. [#64489](https://github.com/ClickHouse/ClickHouse/pull/64489) ([Michael Kolupaev](https://github.com/al13n321)).
+* Fix 02444_async_broken_outdated_part_loading flakiness. [#64956](https://github.com/ClickHouse/ClickHouse/pull/64956) ([Azat Khuzhin](https://github.com/azat)).
+* attach_gdb.lib: print more information before all stacks. [#65253](https://github.com/ClickHouse/ClickHouse/pull/65253) ([Michael Kolupaev](https://github.com/al13n321)).
+* Fix some perf tests. [#65320](https://github.com/ClickHouse/ClickHouse/pull/65320) ([Nikita Taranov](https://github.com/nickitat)).
+* Remove ActionsDAGPtr whenever it is possible. [#65414](https://github.com/ClickHouse/ClickHouse/pull/65414) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Scheduler queue throughput introspection, Fix CPU indication in client. [#65654](https://github.com/ClickHouse/ClickHouse/pull/65654) ([Sergei Trifonov](https://github.com/serxa)).
+* Increase timeout in 02122_join_group_by_timeout for tsan build. [#65976](https://github.com/ClickHouse/ClickHouse/pull/65976) ([vdimir](https://github.com/vdimir)).
+* Remove default values for certificateFile/privateKeyFile/dhParamsFile in keeper config (to avoid annoying errors in logs). [#65978](https://github.com/ClickHouse/ClickHouse/pull/65978) ([Azat Khuzhin](https://github.com/azat)).
+* Update version_date.tsv and changelogs after v24.3.5.46-lts. [#66054](https://github.com/ClickHouse/ClickHouse/pull/66054) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Fix flaky `02814_currentDatabase_for_table_functions`. [#66111](https://github.com/ClickHouse/ClickHouse/pull/66111) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
+* Fix possible data-race StorageKafka with statistics_interval_ms>0. [#66311](https://github.com/ClickHouse/ClickHouse/pull/66311) ([Azat Khuzhin](https://github.com/azat)).
+* Avoid unneeded calculation in SeriesPeriodDetect. [#66320](https://github.com/ClickHouse/ClickHouse/pull/66320) ([Ruihang Xia](https://github.com/waynexia)).
+* It aims to complete [#58630](https://github.com/ClickHouse/ClickHouse/issues/58630). This is made possible by [#60463](https://github.com/ClickHouse/ClickHouse/issues/60463), [#61459](https://github.com/ClickHouse/ClickHouse/issues/61459) and [#60082](https://github.com/ClickHouse/ClickHouse/issues/60082). [#66443](https://github.com/ClickHouse/ClickHouse/pull/66443) ([Amos Bird](https://github.com/amosbird)).
+* Allow run query instantly in play. [#66457](https://github.com/ClickHouse/ClickHouse/pull/66457) ([Aleksandr Musorin](https://github.com/AVMusorin)).
+* Bump ICU from v70 to v75. [#66474](https://github.com/ClickHouse/ClickHouse/pull/66474) ([Robert Schulze](https://github.com/rschu1ze)).
+* Bump RocksDB from v6.29.5 to v7.10.2. [#66475](https://github.com/ClickHouse/ClickHouse/pull/66475) ([Robert Schulze](https://github.com/rschu1ze)).
+* Bump RocksDB from v7.10.2 to v8.9.1. [#66479](https://github.com/ClickHouse/ClickHouse/pull/66479) ([Robert Schulze](https://github.com/rschu1ze)).
+* I believe the error code for this function should not be "NOT_ALLOWED" since it simply is an invalid query and "BAD_QUERY_PARAMETER" is a more reasonable error code for this. [#66491](https://github.com/ClickHouse/ClickHouse/pull/66491) ([Ali](https://github.com/xogoodnow)).
+* Update gdb to 15.1 (by compiling from sources). [#66494](https://github.com/ClickHouse/ClickHouse/pull/66494) ([Azat Khuzhin](https://github.com/azat)).
+* Ensure that llvm-symbolizer is used for symbolizing sanitizer reports. [#66495](https://github.com/ClickHouse/ClickHouse/pull/66495) ([Azat Khuzhin](https://github.com/azat)).
+* Remove unused local variables. [#66503](https://github.com/ClickHouse/ClickHouse/pull/66503) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* This will solve a lot of problems with inconsistent formatting. And it opens the path for [#65753](https://github.com/ClickHouse/ClickHouse/issues/65753). This closes [#66807](https://github.com/ClickHouse/ClickHouse/issues/66807). This closes [#61611](https://github.com/ClickHouse/ClickHouse/issues/61611). This closes [#61711](https://github.com/ClickHouse/ClickHouse/issues/61711). This closes [#67445](https://github.com/ClickHouse/ClickHouse/issues/67445). [#66506](https://github.com/ClickHouse/ClickHouse/pull/66506) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Rename Context::getSettings() to Context::getSettingsCopy(). [#66528](https://github.com/ClickHouse/ClickHouse/pull/66528) ([Raúl Marín](https://github.com/Algunenano)).
+* Uninteresting change: introducing `ClientApplicationBase`. [#66549](https://github.com/ClickHouse/ClickHouse/pull/66549) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
+* Respond to parallel replicas protocol requests with priority on initiator. [#66618](https://github.com/ClickHouse/ClickHouse/pull/66618) ([Igor Nikonov](https://github.com/devcrafter)).
+* Fix bad code: it was catching exceptions. [#66628](https://github.com/ClickHouse/ClickHouse/pull/66628) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Dump all memory stats in CgroupsMemoryUsageObserver on hitting the limit. [#66732](https://github.com/ClickHouse/ClickHouse/pull/66732) ([Nikita Taranov](https://github.com/nickitat)).
+* Save writer thread id in shared mutex for debugging. [#66745](https://github.com/ClickHouse/ClickHouse/pull/66745) ([Alexander Gololobov](https://github.com/davenger)).
+* Increase asio pool size in case the server is tiny. [#66761](https://github.com/ClickHouse/ClickHouse/pull/66761) ([alesapin](https://github.com/alesapin)).
+* Looks like it runs too many mutations sometimes and fails to process them within the timeout. So if a query waits for mutations - the test fails. [#66785](https://github.com/ClickHouse/ClickHouse/pull/66785) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Better diagnostics in functional tests. [#66790](https://github.com/ClickHouse/ClickHouse/pull/66790) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix bad test `01042_system_reload_dictionary_reloads_completely`. [#66811](https://github.com/ClickHouse/ClickHouse/pull/66811) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Something is strange with the test about refreshable materialized views. [#66816](https://github.com/ClickHouse/ClickHouse/pull/66816) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Randomize `trace_profile_events`. [#66821](https://github.com/ClickHouse/ClickHouse/pull/66821) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Stop ignoring SIGSEGV in GDB. [#66847](https://github.com/ClickHouse/ClickHouse/pull/66847) ([Antonio Andelic](https://github.com/antonio2368)).
+* Followup [#66725](https://github.com/ClickHouse/ClickHouse/issues/66725). [#66869](https://github.com/ClickHouse/ClickHouse/pull/66869) ([vdimir](https://github.com/vdimir)).
+* When executing queries with parallel replicas that involve only a subset of nodes within a shard, the current behavior is that if all participating replicas are unavailable, the query completes without any errors but returns no results. Referencing issue [#65467](https://github.com/ClickHouse/ClickHouse/issues/65467), this pull request addresses the issue where only a portion of the nodes in a shard are participating in the execution. [#66880](https://github.com/ClickHouse/ClickHouse/pull/66880) ([zoomxi](https://github.com/zoomxi)).
+* Speed up stateful tests setup. [#66886](https://github.com/ClickHouse/ClickHouse/pull/66886) ([Raúl Marín](https://github.com/Algunenano)).
+* Functions [h-r]*: Iterate over input_rows_count where appropriate. [#66897](https://github.com/ClickHouse/ClickHouse/pull/66897) ([Robert Schulze](https://github.com/rschu1ze)).
+* Stateless tests: Change status of failed tests in case of server crash and add no-parallel to high-load tests. [#66901](https://github.com/ClickHouse/ClickHouse/pull/66901) ([Nikita Fomichev](https://github.com/fm4v)).
+* Fix performance test about the generateRandom table function, supposedly. [#66906](https://github.com/ClickHouse/ClickHouse/pull/66906) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix bad tests `share_big_sets`, CC @davenger. [#66908](https://github.com/ClickHouse/ClickHouse/pull/66908) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Speed up mutations for non-replicated MergeTree a bit. [#66909](https://github.com/ClickHouse/ClickHouse/pull/66909) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Speed up mutations for non-replicated MergeTree significantly. [#66911](https://github.com/ClickHouse/ClickHouse/pull/66911) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix views over distributed tables with Analyzer. [#66912](https://github.com/ClickHouse/ClickHouse/pull/66912) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* [CI fest] Try to fix `test_broken_projections/test.py::test_broken_ignored_replicated`. [#66915](https://github.com/ClickHouse/ClickHouse/pull/66915) ([Andrey Zvonov](https://github.com/zvonand)).
+* Decrease rate limit in `01923_network_receive_time_metric_insert`. [#66924](https://github.com/ClickHouse/ClickHouse/pull/66924) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Grouparrayintersect: fix serialization bug. [#66928](https://github.com/ClickHouse/ClickHouse/pull/66928) ([Raúl Marín](https://github.com/Algunenano)).
+* Update version after release branch. [#66929](https://github.com/ClickHouse/ClickHouse/pull/66929) ([Raúl Marín](https://github.com/Algunenano)).
+* Un-flake test_runtime_configurable_cache_size. [#66934](https://github.com/ClickHouse/ClickHouse/pull/66934) ([Robert Schulze](https://github.com/rschu1ze)).
+* fix unit tests ResolvePoolTest with timeouts. [#66953](https://github.com/ClickHouse/ClickHouse/pull/66953) ([Sema Checherinda](https://github.com/CheSema)).
+* Split slow test 03036_dynamic_read_subcolumns. [#66954](https://github.com/ClickHouse/ClickHouse/pull/66954) ([Nikita Taranov](https://github.com/nickitat)).
+* CI: Fixes docker server build for release branches. [#66955](https://github.com/ClickHouse/ClickHouse/pull/66955) ([Max K.](https://github.com/maxknv)).
+* Addressing issue [#64936](https://github.com/ClickHouse/ClickHouse/issues/64936). [#66973](https://github.com/ClickHouse/ClickHouse/pull/66973) ([alesapin](https://github.com/alesapin)).
+* Add initial 24.7 changelog. [#66976](https://github.com/ClickHouse/ClickHouse/pull/66976) ([Raúl Marín](https://github.com/Algunenano)).
+* Apply libunwind fix. [#66977](https://github.com/ClickHouse/ClickHouse/pull/66977) ([Michael Kolupaev](https://github.com/al13n321)).
+* CI: Add logs for debugging. [#66979](https://github.com/ClickHouse/ClickHouse/pull/66979) ([Max K.](https://github.com/maxknv)).
+* [CI Fest] Split dynamic tests and rewrite them from sh to sql to avoid timeouts. [#66981](https://github.com/ClickHouse/ClickHouse/pull/66981) ([Kruglov Pavel](https://github.com/Avogar)).
+* Split 01508_partition_pruning_long. [#66983](https://github.com/ClickHouse/ClickHouse/pull/66983) ([Nikita Taranov](https://github.com/nickitat)).
+* [CI Fest] Fix use-of-uninitialized-value in JSONExtract* numeric functions. [#66984](https://github.com/ClickHouse/ClickHouse/pull/66984) ([Kruglov Pavel](https://github.com/Avogar)).
+* It should fix SQLancer checks, but for some reason we stopped invalidating cache for docker builds and fix was not published to our CI for a while. [#66987](https://github.com/ClickHouse/ClickHouse/pull/66987) ([Ilya Yatsishin](https://github.com/qoega)).
+* Fixes [#66941](https://github.com/ClickHouse/ClickHouse/issues/66941). [#66991](https://github.com/ClickHouse/ClickHouse/pull/66991) ([Konstantin Bogdanov](https://github.com/thevar1able)).
+* Remove the support for Kerberized HDFS. [#66998](https://github.com/ClickHouse/ClickHouse/pull/66998) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* CI: Fix for workflow results parsing. [#67000](https://github.com/ClickHouse/ClickHouse/pull/67000) ([Max K.](https://github.com/maxknv)).
+* Fix flaky `01454_storagememory_data_race_challenge`. [#67003](https://github.com/ClickHouse/ClickHouse/pull/67003) ([Antonio Andelic](https://github.com/antonio2368)).
+* CI: Jepsen Workflow fix for skipped builds and observability. [#67004](https://github.com/ClickHouse/ClickHouse/pull/67004) ([Max K.](https://github.com/maxknv)).
+* bugfix AttachedTable counting not symmetry, and adding some test logs…. [#67007](https://github.com/ClickHouse/ClickHouse/pull/67007) ([Xu Jia](https://github.com/XuJia0210)).
+* CI: Automerge when required and non-required checks completed. [#67008](https://github.com/ClickHouse/ClickHouse/pull/67008) ([Max K.](https://github.com/maxknv)).
+* Fix test `very_long_arrays`. [#67009](https://github.com/ClickHouse/ClickHouse/pull/67009) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Try to fix exception logging in destructors of static objects. [#67016](https://github.com/ClickHouse/ClickHouse/pull/67016) ([Antonio Andelic](https://github.com/antonio2368)).
+* [Green CI] Fix test test_storage_azure_blob_storage. [#67019](https://github.com/ClickHouse/ClickHouse/pull/67019) ([Daniil Ivanik](https://github.com/divanik)).
+* Integration tests: fix flaky tests `test_backup_restore_on_cluster/test_concurrency.py` & `test_manipulate_statistics/test.py`. [#67027](https://github.com/ClickHouse/ClickHouse/pull/67027) ([Nikita Fomichev](https://github.com/fm4v)).
+* [Green CI] Fix test test_storage_s3_queue/test.py::test_max_set_age. [#67035](https://github.com/ClickHouse/ClickHouse/pull/67035) ([Pablo Marcos](https://github.com/pamarcos)).
+* Test for alter select with parallel replicas. [#67041](https://github.com/ClickHouse/ClickHouse/pull/67041) ([Igor Nikonov](https://github.com/devcrafter)).
+* Split query into multiple queries to consume less memory at once + use less data. Fixes [#67034](https://github.com/ClickHouse/ClickHouse/issues/67034). [#67044](https://github.com/ClickHouse/ClickHouse/pull/67044) ([alesapin](https://github.com/alesapin)).
+* Disable setting `optimize_functions_to_subcolumns`. [#67046](https://github.com/ClickHouse/ClickHouse/pull/67046) ([Anton Popov](https://github.com/CurtizJ)).
+* Increase max allocation size for sanitizers. [#67049](https://github.com/ClickHouse/ClickHouse/pull/67049) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* rewrite 01171 test. [#67054](https://github.com/ClickHouse/ClickHouse/pull/67054) ([Sema Checherinda](https://github.com/CheSema)).
+* Add `**` to `hdfs` docs, add test for `**` in `hdfs`. [#67064](https://github.com/ClickHouse/ClickHouse/pull/67064) ([Andrey Zvonov](https://github.com/zvonand)).
+* Very sad failure: ``` 2024.07.24 13:28:45.517777 [ 10 ] {08745bf9-4bc1-4946-b9a8-c03d82ec55dc} <Debug> executeQuery: (from 172.16.11.1:55890) OPTIMIZE TABLE replicated_mt FINAL (stage: Complete) 2024.07.24 13:28:45.525945 [ 10 ] {08745bf9-4bc1-4946-b9a8-c03d82ec55dc} <Trace> default.replicated_mt (ReplicatedMergeTreeQueue): Waiting for 4 entries to be processed: queue-0000000004, queue-0000000002, queue-0000000001, queue-0000000000 2024.07.24 13:29:15.528024 [ 10 ] {08745bf9-4bc1-4946-b9a8-c03d82ec55dc} <Debug> default.replicated_mt (6581a6fb-8458-466d-8350-89951eb1ac8e) (MergerMutator): Selected 3 parts from all_0_0_0 to all_2_2_0 2024.07.24 13:29:15.530736 [ 10 ] {08745bf9-4bc1-4946-b9a8-c03d82ec55dc} <Trace> default.replicated_mt (6581a6fb-8458-466d-8350-89951eb1ac8e): Created log entry /clickhouse/tables/replicated_mt/log/log-0000000004 for merge all_0_2_1 2024.07.24 13:29:15.530873 [ 10 ] {08745bf9-4bc1-4946-b9a8-c03d82ec55dc} <Debug> default.replicated_mt (6581a6fb-8458-466d-8350-89951eb1ac8e): Waiting for node1 to process log entry 2024.07.24 13:29:15.530919 [ 10 ] {08745bf9-4bc1-4946-b9a8-c03d82ec55dc} <Debug> default.replicated_mt (6581a6fb-8458-466d-8350-89951eb1ac8e): Waiting for node1 to pull log-0000000004 to queue 2024.07.24 13:29:15.534286 [ 10 ] {08745bf9-4bc1-4946-b9a8-c03d82ec55dc} <Debug> default.replicated_mt (6581a6fb-8458-466d-8350-89951eb1ac8e): Looking for node corresponding to log-0000000004 in node1 queue 2024.07.24 13:29:15.534793 [ 10 ] {08745bf9-4bc1-4946-b9a8-c03d82ec55dc} <Debug> default.replicated_mt (6581a6fb-8458-466d-8350-89951eb1ac8e): Waiting for queue-0000000005 to disappear from node1 queue 2024.07.24 13:29:15.585533 [ 10 ] {08745bf9-4bc1-4946-b9a8-c03d82ec55dc} <Debug> TCPHandler: Processed in 30.067804125 sec. ```. [#67067](https://github.com/ClickHouse/ClickHouse/pull/67067) ([alesapin](https://github.com/alesapin)).
+* Fix flaky `test_seekable_formats_url` and `test_seekable_formats` S3 storage tests. [#67070](https://github.com/ClickHouse/ClickHouse/pull/67070) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* CI: Docker server build fix for new release workflow. [#67075](https://github.com/ClickHouse/ClickHouse/pull/67075) ([Max K.](https://github.com/maxknv)).
+* Fix 2680 flasky. [#67078](https://github.com/ClickHouse/ClickHouse/pull/67078) ([jsc0218](https://github.com/jsc0218)).
+* [CI Fest] Fix flaky 02447_drop_replica test. [#67085](https://github.com/ClickHouse/ClickHouse/pull/67085) ([Nikolay Degterinsky](https://github.com/evillique)).
+* Fixes [#67030](https://github.com/ClickHouse/ClickHouse/issues/67030). [#67086](https://github.com/ClickHouse/ClickHouse/pull/67086) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Increase timeout for curl in tests. [#67089](https://github.com/ClickHouse/ClickHouse/pull/67089) ([Anton Popov](https://github.com/CurtizJ)).
+* Try calculating available memory if ClickHouse is bound to subset of NUMA nodes. [#67098](https://github.com/ClickHouse/ClickHouse/pull/67098) ([Antonio Andelic](https://github.com/antonio2368)).
+* A more precise way of tracking flushing time in 01246_buffer_flush. [#67099](https://github.com/ClickHouse/ClickHouse/pull/67099) ([Azat Khuzhin](https://github.com/azat)).
+* Do not fail CheckReadyForMerge on failed Tests_2 (non-required jobs) Do not skip CiBuddy report step on failures. [#67101](https://github.com/ClickHouse/ClickHouse/pull/67101) ([Max K.](https://github.com/maxknv)).
+* Tststs_1 - for all required checks Tststs_2 - for all non-required checks (normal mode) Tststs_2_ww - for all non-required checks (woolenwolfdog mode). [#67104](https://github.com/ClickHouse/ClickHouse/pull/67104) ([Max K.](https://github.com/maxknv)).
+* Functions [s-t]*: Iterate over input_rows_count where appropriate. [#67105](https://github.com/ClickHouse/ClickHouse/pull/67105) ([Robert Schulze](https://github.com/rschu1ze)).
+* Reintroduce 02805_distributed_queries_timeouts. [#67106](https://github.com/ClickHouse/ClickHouse/pull/67106) ([Azat Khuzhin](https://github.com/azat)).
+* Added some tests in relation with [#54881](https://github.com/ClickHouse/ClickHouse/issues/54881). [#67110](https://github.com/ClickHouse/ClickHouse/pull/67110) ([max-vostrikov](https://github.com/max-vostrikov)).
+* Reintroduce 03002_part_log_rmt_fetch_*_error tests without flakiness and less time. [#67113](https://github.com/ClickHouse/ClickHouse/pull/67113) ([Azat Khuzhin](https://github.com/azat)).
+* Improve tag matching in backport scripts. [#67118](https://github.com/ClickHouse/ClickHouse/pull/67118) ([Raúl Marín](https://github.com/Algunenano)).
+* Fixes [#67111](https://github.com/ClickHouse/ClickHouse/issues/67111). [#67121](https://github.com/ClickHouse/ClickHouse/pull/67121) ([Konstantin Bogdanov](https://github.com/thevar1able)).
+* Increase lock_acquire_timeout_for_background_operations setting in dynamic merges tests. [#67126](https://github.com/ClickHouse/ClickHouse/pull/67126) ([Kruglov Pavel](https://github.com/Avogar)).
+* Attempt to fix flakiness of some window view tests. [#67130](https://github.com/ClickHouse/ClickHouse/pull/67130) ([Robert Schulze](https://github.com/rschu1ze)).
+* Update assert in cache. [#67138](https://github.com/ClickHouse/ClickHouse/pull/67138) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Fix test `00673_subquery_prepared_set_performance`. [#67141](https://github.com/ClickHouse/ClickHouse/pull/67141) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fixes [#67047](https://github.com/ClickHouse/ClickHouse/issues/67047). [#67142](https://github.com/ClickHouse/ClickHouse/pull/67142) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Lower max allocation size in query fuzzer. [#67145](https://github.com/ClickHouse/ClickHouse/pull/67145) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fixes [#66966](https://github.com/ClickHouse/ClickHouse/issues/66966). [#67147](https://github.com/ClickHouse/ClickHouse/pull/67147) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Try fix `02481_async_insert_race_long` flakiness. [#67148](https://github.com/ClickHouse/ClickHouse/pull/67148) ([Julia Kartseva](https://github.com/jkartseva)).
+* Rename (unreleased) bad setting. [#67149](https://github.com/ClickHouse/ClickHouse/pull/67149) ([Raúl Marín](https://github.com/Algunenano)).
+* Uncomment accidentally commented out code in QueryProfiler. [#67152](https://github.com/ClickHouse/ClickHouse/pull/67152) ([Michael Kolupaev](https://github.com/al13n321)).
+* Try to fix 2572. [#67158](https://github.com/ClickHouse/ClickHouse/pull/67158) ([jsc0218](https://github.com/jsc0218)).
+* Fix benign data race in ZooKeeper. [#67164](https://github.com/ClickHouse/ClickHouse/pull/67164) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Remove too long unit test. [#67168](https://github.com/ClickHouse/ClickHouse/pull/67168) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix `00705_drop_create_merge_tree`. [#67170](https://github.com/ClickHouse/ClickHouse/pull/67170) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix stacktrace cache. [#67173](https://github.com/ClickHouse/ClickHouse/pull/67173) ([Antonio Andelic](https://github.com/antonio2368)).
+* Fixes [#67151](https://github.com/ClickHouse/ClickHouse/issues/67151). [#67174](https://github.com/ClickHouse/ClickHouse/pull/67174) ([Konstantin Bogdanov](https://github.com/thevar1able)).
+* Make 02908_many_requests_to_system_replicas less stressful. [#67176](https://github.com/ClickHouse/ClickHouse/pull/67176) ([Alexander Gololobov](https://github.com/davenger)).
+* Reduce max time of 00763_long_lock_buffer_alter_destination_table. [#67185](https://github.com/ClickHouse/ClickHouse/pull/67185) ([Raúl Marín](https://github.com/Algunenano)).
+* Do not count AttachedTable for tables in information schema databases. [#67187](https://github.com/ClickHouse/ClickHouse/pull/67187) ([Sergei Trifonov](https://github.com/serxa)).
+* Verbose output for 03203_client_benchmark_options. [#67188](https://github.com/ClickHouse/ClickHouse/pull/67188) ([vdimir](https://github.com/vdimir)).
+* Split test 02967_parallel_replicas_join_algo_and_analyzer. [#67211](https://github.com/ClickHouse/ClickHouse/pull/67211) ([Nikita Taranov](https://github.com/nickitat)).
+* Fix flaky `test_pkill_query_log` (tsan). [#67223](https://github.com/ClickHouse/ClickHouse/pull/67223) ([Sergei Trifonov](https://github.com/serxa)).
+* Remove integration test `test_broken_projections_in_backups_1`. [#67231](https://github.com/ClickHouse/ClickHouse/pull/67231) ([Vitaly Baranov](https://github.com/vitlibar)).
+* Debug logging for [#67002](https://github.com/ClickHouse/ClickHouse/issues/67002). [#67233](https://github.com/ClickHouse/ClickHouse/pull/67233) ([Nikita Taranov](https://github.com/nickitat)).
+* Fix oss-fuzz build. [#67235](https://github.com/ClickHouse/ClickHouse/pull/67235) ([Nikita Taranov](https://github.com/nickitat)).
+* Fix flaky 00180_no_seek_avoiding_when_reading_from_cache. [#67236](https://github.com/ClickHouse/ClickHouse/pull/67236) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
+* English. [#67258](https://github.com/ClickHouse/ClickHouse/pull/67258) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Remove strange code. [#67260](https://github.com/ClickHouse/ClickHouse/pull/67260) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix MSan report in DatabaseReplicated. [#67262](https://github.com/ClickHouse/ClickHouse/pull/67262) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix test `02310_clickhouse_local_INSERT_progress_profile_events`. [#67264](https://github.com/ClickHouse/ClickHouse/pull/67264) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Remove test `02982_aggregation_states_destruction`. [#67266](https://github.com/ClickHouse/ClickHouse/pull/67266) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix OOM in test runs. [#67268](https://github.com/ClickHouse/ClickHouse/pull/67268) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Remove harmful stuff from tests. [#67275](https://github.com/ClickHouse/ClickHouse/pull/67275) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix test `03201_variant_null_map_subcolumn`. [#67276](https://github.com/ClickHouse/ClickHouse/pull/67276) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Split `01651_lc_insert_tiny_log`. [#67279](https://github.com/ClickHouse/ClickHouse/pull/67279) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Debug test `02490_benchmark_max_consecutive_errors`. [#67281](https://github.com/ClickHouse/ClickHouse/pull/67281) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix bad test `02833_concurrrent_sessions`. [#67282](https://github.com/ClickHouse/ClickHouse/pull/67282) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Add a separate test for exception handling. [#67283](https://github.com/ClickHouse/ClickHouse/pull/67283) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Debug test `01600_parts_states_metrics_long`. [#67284](https://github.com/ClickHouse/ClickHouse/pull/67284) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Faster test `02231_buffer_aggregate_states_leak`. [#67285](https://github.com/ClickHouse/ClickHouse/pull/67285) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix curiosities in `TimerDescriptor`. [#67287](https://github.com/ClickHouse/ClickHouse/pull/67287) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Add retries to test `02911_backup_restore_keeper_map`. [#67290](https://github.com/ClickHouse/ClickHouse/pull/67290) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Functions: Iterate over input_rows_count where appropriate. [#67294](https://github.com/ClickHouse/ClickHouse/pull/67294) ([Robert Schulze](https://github.com/rschu1ze)).
+* Add documentation for `compile_expressions`. [#67300](https://github.com/ClickHouse/ClickHouse/pull/67300) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Wrap log lines in the CI report for functional tests. [#67301](https://github.com/ClickHouse/ClickHouse/pull/67301) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix bad test `02050_client_profile_events`. [#67309](https://github.com/ClickHouse/ClickHouse/pull/67309) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* I do not want to think about this code. [#67312](https://github.com/ClickHouse/ClickHouse/pull/67312) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix test `00940_max_parts_in_total`. [#67313](https://github.com/ClickHouse/ClickHouse/pull/67313) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Tests for Kafka cannot run in parallel. [#67315](https://github.com/ClickHouse/ClickHouse/pull/67315) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Add a test for [#66285](https://github.com/ClickHouse/ClickHouse/issues/66285). [#67325](https://github.com/ClickHouse/ClickHouse/pull/67325) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Follow-up for [#67301](https://github.com/ClickHouse/ClickHouse/issues/67301). [#67327](https://github.com/ClickHouse/ClickHouse/pull/67327) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Add a test for [#61659](https://github.com/ClickHouse/ClickHouse/issues/61659). [#67332](https://github.com/ClickHouse/ClickHouse/pull/67332) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix integration test `test_backup_restore_on_cluster/test_disallow_concurrency`. [#67336](https://github.com/ClickHouse/ClickHouse/pull/67336) ([Vitaly Baranov](https://github.com/vitlibar)).
+* Faster and less flaky 01246_buffer_flush (by using HTTP over clickhouse-client). [#67340](https://github.com/ClickHouse/ClickHouse/pull/67340) ([Azat Khuzhin](https://github.com/azat)).
+* Fix: data race in TCPHandler on socket timeouts settings. [#67341](https://github.com/ClickHouse/ClickHouse/pull/67341) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
+* CI: Print stdout, stderr for docker pull command. [#67343](https://github.com/ClickHouse/ClickHouse/pull/67343) ([Max K.](https://github.com/maxknv)).
+* Followup [#67290](https://github.com/ClickHouse/ClickHouse/issues/67290). [#67348](https://github.com/ClickHouse/ClickHouse/pull/67348) ([vdimir](https://github.com/vdimir)).
+* Skip parallel for `test_storage_kerberized_kafka`. [#67349](https://github.com/ClickHouse/ClickHouse/pull/67349) ([Andrey Zvonov](https://github.com/zvonand)).
+* Don't use PeekableReadBuffer in JSONAsObject format. [#67354](https://github.com/ClickHouse/ClickHouse/pull/67354) ([Kruglov Pavel](https://github.com/Avogar)).
+* This closes: [#57316](https://github.com/ClickHouse/ClickHouse/issues/57316). [#67355](https://github.com/ClickHouse/ClickHouse/pull/67355) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
+* Remove duplicated tests. [#67357](https://github.com/ClickHouse/ClickHouse/pull/67357) ([Kruglov Pavel](https://github.com/Avogar)).
+* Release branch was not detected properly and job which must run on release branch could be reused from feature branches. PR Fixes detection of release branches. [#67358](https://github.com/ClickHouse/ClickHouse/pull/67358) ([Max K.](https://github.com/maxknv)).
+* Disable some Dynamic tests under sanitizers, rewrite 03202_dynamic_null_map_subcolumn to sql. [#67359](https://github.com/ClickHouse/ClickHouse/pull/67359) ([Kruglov Pavel](https://github.com/Avogar)).
+* Add no-distributed-cache tag in tests. [#67361](https://github.com/ClickHouse/ClickHouse/pull/67361) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Trying to fix test_cache_evicted_by_temporary_data and print debug info. [#67362](https://github.com/ClickHouse/ClickHouse/pull/67362) ([vdimir](https://github.com/vdimir)).
+* Try to fix: ALL_CONNECTION_TRIES_FAILED with parallel replicas. [#67389](https://github.com/ClickHouse/ClickHouse/pull/67389) ([Igor Nikonov](https://github.com/devcrafter)).
+* Fix bad test `01036_no_superfluous_dict_reload_on_create_database`. [#67390](https://github.com/ClickHouse/ClickHouse/pull/67390) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Adding `SelectedPartsTotal` and `SelectedMarksTotal` as new ProfileEvents. [#67393](https://github.com/ClickHouse/ClickHouse/pull/67393) ([Jordi Villar](https://github.com/jrdi)).
+* Print debug info in `test_storage_s3_queue/test.py::test_shards_distributed`. [#67394](https://github.com/ClickHouse/ClickHouse/pull/67394) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Mute degraded perf test. [#67396](https://github.com/ClickHouse/ClickHouse/pull/67396) ([Nikita Taranov](https://github.com/nickitat)).
+* Debug TimerDescriptor. [#67397](https://github.com/ClickHouse/ClickHouse/pull/67397) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Remove has_single_port property from plan stream. [#67398](https://github.com/ClickHouse/ClickHouse/pull/67398) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
+* Fix typo. [#67400](https://github.com/ClickHouse/ClickHouse/pull/67400) ([Halersson Paris](https://github.com/halersson)).
+* CI: Fix build results for release branches. [#67402](https://github.com/ClickHouse/ClickHouse/pull/67402) ([Max K.](https://github.com/maxknv)).
+* Disable 02932_refreshable_materialized_views. [#67404](https://github.com/ClickHouse/ClickHouse/pull/67404) ([Michael Kolupaev](https://github.com/al13n321)).
+* Follow-up to [#67294](https://github.com/ClickHouse/ClickHouse/issues/67294). [#67405](https://github.com/ClickHouse/ClickHouse/pull/67405) ([Robert Schulze](https://github.com/rschu1ze)).
+* Fix DWARF range list parsing in stack symbolizer. [#67417](https://github.com/ClickHouse/ClickHouse/pull/67417) ([Michael Kolupaev](https://github.com/al13n321)).
+* Make Dwarf::findAddress() fallback slow path less slow. [#67418](https://github.com/ClickHouse/ClickHouse/pull/67418) ([Michael Kolupaev](https://github.com/al13n321)).
+* Fix inconsistent formatting of CODEC and STATISTICS. [#67421](https://github.com/ClickHouse/ClickHouse/pull/67421) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Reduced complexity of the test 02832_alter_max_sessions_for_user. [#67425](https://github.com/ClickHouse/ClickHouse/pull/67425) ([Alexey Gerasimchuck](https://github.com/Demilivor)).
+* Remove obsolete `--multiquery` parameter from tests. [#67435](https://github.com/ClickHouse/ClickHouse/pull/67435) ([Robert Schulze](https://github.com/rschu1ze)).
+* Fix public backports. [#67439](https://github.com/ClickHouse/ClickHouse/pull/67439) ([Raúl Marín](https://github.com/Algunenano)).
+* Bump Azure from v1.12 to v1.13. [#67446](https://github.com/ClickHouse/ClickHouse/pull/67446) ([Robert Schulze](https://github.com/rschu1ze)).
+* 24.7 add missing documentation and testing. [#67454](https://github.com/ClickHouse/ClickHouse/pull/67454) ([Nikita Fomichev](https://github.com/fm4v)).
+* Use correct order of fields in `StorageURLSource`. [#67455](https://github.com/ClickHouse/ClickHouse/pull/67455) ([Antonio Andelic](https://github.com/antonio2368)).
+* run 01171 test in parallel. [#67470](https://github.com/ClickHouse/ClickHouse/pull/67470) ([Sema Checherinda](https://github.com/CheSema)).
+* [Green CI] Fix WriteBuffer destructor when finalize has failed for MergeTreeDeduplicationLog::shutdown. [#67474](https://github.com/ClickHouse/ClickHouse/pull/67474) ([Alexey Katsman](https://github.com/alexkats)).
+* Reduce 02473_multistep_prewhere run time. [#67475](https://github.com/ClickHouse/ClickHouse/pull/67475) ([Alexander Gololobov](https://github.com/davenger)).
+* Update version_date.tsv and changelogs after v24.7.1.2915-stable. [#67483](https://github.com/ClickHouse/ClickHouse/pull/67483) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Revert [#61750](https://github.com/ClickHouse/ClickHouse/issues/61750) "Improve JSONEachRow reading by ignoring the keys case". [#67484](https://github.com/ClickHouse/ClickHouse/pull/67484) ([Michael Kolupaev](https://github.com/al13n321)).
+* Disable parallel run for `01923_network_receive_time_metric_insert.sh`. [#67492](https://github.com/ClickHouse/ClickHouse/pull/67492) ([Julia Kartseva](https://github.com/jkartseva)).
+* Fix test `test_backup_restore_on_cluster/test.py::test_mutation`. [#67494](https://github.com/ClickHouse/ClickHouse/pull/67494) ([Vitaly Baranov](https://github.com/vitlibar)).
+* [Green CI] Fix potentially flaky test_mask_sensitive_info integration test. [#67506](https://github.com/ClickHouse/ClickHouse/pull/67506) ([Alexey Katsman](https://github.com/alexkats)).
+* [Green CI] Test `test_storage_azure_blob_storage/test.py` is flaky. [#67512](https://github.com/ClickHouse/ClickHouse/pull/67512) ([Daniil Ivanik](https://github.com/divanik)).
+* Prepare Release workflow for production. [#67523](https://github.com/ClickHouse/ClickHouse/pull/67523) ([Max K.](https://github.com/maxknv)).
+* Fix upgrade check. [#67524](https://github.com/ClickHouse/ClickHouse/pull/67524) ([Raúl Marín](https://github.com/Algunenano)).
+* [Green CI] test 03164_s3_settings_for_queries_and_merges is flaky. [#67535](https://github.com/ClickHouse/ClickHouse/pull/67535) ([Daniil Ivanik](https://github.com/divanik)).
+* Log message and increased concurrency for table removal. [#67537](https://github.com/ClickHouse/ClickHouse/pull/67537) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
+* Fix AsyncLoader destruction race. [#67553](https://github.com/ClickHouse/ClickHouse/pull/67553) ([Sergei Trifonov](https://github.com/serxa)).
+* Add an assert into TimerDescriptor. [#67555](https://github.com/ClickHouse/ClickHouse/pull/67555) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Re-enable ICU on s390/x. [#67557](https://github.com/ClickHouse/ClickHouse/pull/67557) ([Robert Schulze](https://github.com/rschu1ze)).
+* Update version_date.tsv and changelogs after v24.4.4.107-stable. [#67559](https://github.com/ClickHouse/ClickHouse/pull/67559) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Sometimes we fail with timeout in stateless tests and the reason for that seems to be in `stop_logs_replication` step. Add a check for timeout here. [#67560](https://github.com/ClickHouse/ClickHouse/pull/67560) ([Nikolay Degterinsky](https://github.com/evillique)).
+* Miscellaneous. [#67564](https://github.com/ClickHouse/ClickHouse/pull/67564) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* enable parallel_view_processing in perf tests. [#67565](https://github.com/ClickHouse/ClickHouse/pull/67565) ([Sema Checherinda](https://github.com/CheSema)).
+* Fix flaky `test_system_kafka_consumers_rebalance`. [#67566](https://github.com/ClickHouse/ClickHouse/pull/67566) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Update version_date.tsv and changelogs after v24.7.2.13-stable. [#67586](https://github.com/ClickHouse/ClickHouse/pull/67586) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Fix 01811_storage_buffer_flush_parameters flakiness. [#67589](https://github.com/ClickHouse/ClickHouse/pull/67589) ([Azat Khuzhin](https://github.com/azat)).
+* Fix test_zookeeper_config_load_balancing after adding the xdist worker name to the instance. [#67590](https://github.com/ClickHouse/ClickHouse/pull/67590) ([Pablo Marcos](https://github.com/pamarcos)).
+* Update minio in integration tests. [#67595](https://github.com/ClickHouse/ClickHouse/pull/67595) ([Antonio Andelic](https://github.com/antonio2368)).
+* added tests for page index in parquet files. [#67596](https://github.com/ClickHouse/ClickHouse/pull/67596) ([max-vostrikov](https://github.com/max-vostrikov)).
+* Update check_rabbitmq_is_available. [#67597](https://github.com/ClickHouse/ClickHouse/pull/67597) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Fix 02434_cancel_insert_when_client_dies. [#67600](https://github.com/ClickHouse/ClickHouse/pull/67600) ([vdimir](https://github.com/vdimir)).
+* Fix 02910_bad_logs_level_in_local in fast tests. [#67603](https://github.com/ClickHouse/ClickHouse/pull/67603) ([Raúl Marín](https://github.com/Algunenano)).
+* Fix 01605_adaptive_granularity_block_borders. [#67605](https://github.com/ClickHouse/ClickHouse/pull/67605) ([Nikita Taranov](https://github.com/nickitat)).
+* Update CHANGELOG.md. [#67607](https://github.com/ClickHouse/ClickHouse/pull/67607) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Remove some `no-parallel` tags from tests. [#67610](https://github.com/ClickHouse/ClickHouse/pull/67610) ([Raúl Marín](https://github.com/Algunenano)).
+* Update README.md. [#67613](https://github.com/ClickHouse/ClickHouse/pull/67613) ([Tyler Hannan](https://github.com/tylerhannan)).
+* Try fix 03143_asof_join_ddb_long. [#67620](https://github.com/ClickHouse/ClickHouse/pull/67620) ([Nikita Taranov](https://github.com/nickitat)).
+* Don't run ASAN unit tests under gdb. [#67622](https://github.com/ClickHouse/ClickHouse/pull/67622) ([Raúl Marín](https://github.com/Algunenano)).
+* Fix crash in KeyCondition::cloneASTWithInversionPushDown() caused by type change. [#67641](https://github.com/ClickHouse/ClickHouse/pull/67641) ([Michael Kolupaev](https://github.com/al13n321)).
+* Fix race condition between ProcessList and Settings. [#67645](https://github.com/ClickHouse/ClickHouse/pull/67645) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* `02481_async_insert_race_long.sh` flakiness fixes. [#67650](https://github.com/ClickHouse/ClickHouse/pull/67650) ([Julia Kartseva](https://github.com/jkartseva)).
+* Fixes [#67651](https://github.com/ClickHouse/ClickHouse/issues/67651). [#67653](https://github.com/ClickHouse/ClickHouse/pull/67653) ([pufit](https://github.com/pufit)).
+* Fix flaky `test_replicated_table_attach`. [#67658](https://github.com/ClickHouse/ClickHouse/pull/67658) ([Antonio Andelic](https://github.com/antonio2368)).
+* Update version_date.tsv and changelogs after v24.4.4.113-stable. [#67659](https://github.com/ClickHouse/ClickHouse/pull/67659) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Even better healthcheck for ldap. [#67667](https://github.com/ClickHouse/ClickHouse/pull/67667) ([Andrey Zvonov](https://github.com/zvonand)).
+* Fix 03203_client_benchmark_options. [#67671](https://github.com/ClickHouse/ClickHouse/pull/67671) ([vdimir](https://github.com/vdimir)).
+* Integration tests: fix ports clashing problem. [#67672](https://github.com/ClickHouse/ClickHouse/pull/67672) ([Nikita Fomichev](https://github.com/fm4v)).
+* Remove some `no-parallel` tags from tests (Part 2). [#67673](https://github.com/ClickHouse/ClickHouse/pull/67673) ([Raúl Marín](https://github.com/Algunenano)).
+* Use FunctionArgumentDescriptors for bitSlice. [#67674](https://github.com/ClickHouse/ClickHouse/pull/67674) ([Lennard Eijsackers](https://github.com/Blokje5)).
+* Update version_date.tsv and changelog after v24.3.6.48-lts. [#67677](https://github.com/ClickHouse/ClickHouse/pull/67677) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Avoid ddl queue timeout in 02313_filesystem_cache_seeks. [#67680](https://github.com/ClickHouse/ClickHouse/pull/67680) ([Nikita Taranov](https://github.com/nickitat)).
+* Fix bad log message in sort description. [#67690](https://github.com/ClickHouse/ClickHouse/pull/67690) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Update version_date.tsv and changelog after v23.8.16.40-lts. [#67692](https://github.com/ClickHouse/ClickHouse/pull/67692) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Fix check names in test reports and the CI Logs database. [#67696](https://github.com/ClickHouse/ClickHouse/pull/67696) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* CI: Minor refactoring in ci_utils. [#67706](https://github.com/ClickHouse/ClickHouse/pull/67706) ([Max K.](https://github.com/maxknv)).
+* Fix 01042_system_reload_dictionary_reloads_completely flakiness. [#67719](https://github.com/ClickHouse/ClickHouse/pull/67719) ([Azat Khuzhin](https://github.com/azat)).
+* Fix test `00002_log_and_exception_messages_formatting`. [#67723](https://github.com/ClickHouse/ClickHouse/pull/67723) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix test `02789_reading_from_s3_with_connection_pool`. [#67726](https://github.com/ClickHouse/ClickHouse/pull/67726) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix strange code in HostResolvePool. [#67727](https://github.com/ClickHouse/ClickHouse/pull/67727) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix a typo. [#67729](https://github.com/ClickHouse/ClickHouse/pull/67729) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Smart handling of processes leftovers in tests. [#67737](https://github.com/ClickHouse/ClickHouse/pull/67737) ([Azat Khuzhin](https://github.com/azat)).
+* Fix test retries. [#67738](https://github.com/ClickHouse/ClickHouse/pull/67738) ([Azat Khuzhin](https://github.com/azat)).
+* Fill only selected columns from system.clusters. [#67739](https://github.com/ClickHouse/ClickHouse/pull/67739) ([Azat Khuzhin](https://github.com/azat)).
+* Bump NuRaft (to properly catch thread exceptions). [#67740](https://github.com/ClickHouse/ClickHouse/pull/67740) ([Azat Khuzhin](https://github.com/azat)).
+* Try to fix RabbitMQ test failures. [#67743](https://github.com/ClickHouse/ClickHouse/pull/67743) ([Azat Khuzhin](https://github.com/azat)).
+* Stateless tests: attempt to fix timeouts of `02473_multistep_prewhere* 00411_long_accurate_number_comparison*`. [#67746](https://github.com/ClickHouse/ClickHouse/pull/67746) ([Nikita Fomichev](https://github.com/fm4v)).
+* Fix test_ttl_move::test_alter_with_merge_work flakiness. [#67747](https://github.com/ClickHouse/ClickHouse/pull/67747) ([Azat Khuzhin](https://github.com/azat)).
+* ci: better stateless runner (correctly collect artifacts and also some basic errors capturing). [#67752](https://github.com/ClickHouse/ClickHouse/pull/67752) ([Azat Khuzhin](https://github.com/azat)).
+* Introduce `no-flaky-check` tag. [#67755](https://github.com/ClickHouse/ClickHouse/pull/67755) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Whitespaces. [#67771](https://github.com/ClickHouse/ClickHouse/pull/67771) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* [RFC] Print original query for AST formatting check on CI. [#67776](https://github.com/ClickHouse/ClickHouse/pull/67776) ([Azat Khuzhin](https://github.com/azat)).
+* Fix test `02833_concurrent_sessions`, Fix test `02835_drop_user_during_session`. [#67779](https://github.com/ClickHouse/ClickHouse/pull/67779) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix diagnostics in the test script. [#67780](https://github.com/ClickHouse/ClickHouse/pull/67780) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix test `02231_bloom_filter_sizing`. [#67784](https://github.com/ClickHouse/ClickHouse/pull/67784) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fixed session_log related tests race condition on logout. [#67785](https://github.com/ClickHouse/ClickHouse/pull/67785) ([Alexey Gerasimchuck](https://github.com/Demilivor)).
+* ci/stateless: fix artifacts post-processing and detect if something failed there. [#67791](https://github.com/ClickHouse/ClickHouse/pull/67791) ([Azat Khuzhin](https://github.com/azat)).
+* Integration tests: fix flaky `test_dictionaries_update_and_reload::test_reload_after_fail_by_timer`. [#67793](https://github.com/ClickHouse/ClickHouse/pull/67793) ([Nikita Fomichev](https://github.com/fm4v)).
+* Fix possible CANNOT_READ_ALL_DATA during server startup in performance tests. [#67795](https://github.com/ClickHouse/ClickHouse/pull/67795) ([Azat Khuzhin](https://github.com/azat)).
+* Reduce table size in 03037_dynamic_merges_2* tests. [#67797](https://github.com/ClickHouse/ClickHouse/pull/67797) ([Kruglov Pavel](https://github.com/Avogar)).
+* Disable 03038_nested_dynamic_merges* under sanitizers because it's too slow. [#67798](https://github.com/ClickHouse/ClickHouse/pull/67798) ([Kruglov Pavel](https://github.com/Avogar)).
+* Revert "Merge pull request [#66510](https://github.com/ClickHouse/ClickHouse/issues/66510) from canhld94/fix_trivial_count_non_deterministic_func". [#67800](https://github.com/ClickHouse/ClickHouse/pull/67800) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Update comment. [#67801](https://github.com/ClickHouse/ClickHouse/pull/67801) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Fix bad test `03032_redundant_equals`. [#67822](https://github.com/ClickHouse/ClickHouse/pull/67822) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Update tags for a few tests. [#67829](https://github.com/ClickHouse/ClickHouse/pull/67829) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Add debug logging for window view tests. [#67841](https://github.com/ClickHouse/ClickHouse/pull/67841) ([Kseniia Sumarokova](https://github.com/kssenii)).
+* Closes [#67621](https://github.com/ClickHouse/ClickHouse/issues/67621). [#67843](https://github.com/ClickHouse/ClickHouse/pull/67843) ([Ilya Yatsishin](https://github.com/qoega)).
+* Fix query cache randomization in stress tests. [#67855](https://github.com/ClickHouse/ClickHouse/pull/67855) ([Azat Khuzhin](https://github.com/azat)).
+* Update version_date.tsv and changelogs after v24.5.5.78-stable. [#67863](https://github.com/ClickHouse/ClickHouse/pull/67863) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Un-flake 02524_fuzz_and_fuss_2. [#67867](https://github.com/ClickHouse/ClickHouse/pull/67867) ([Robert Schulze](https://github.com/rschu1ze)).
+* Misc fixes. [#67869](https://github.com/ClickHouse/ClickHouse/pull/67869) ([Alexey Katsman](https://github.com/alexkats)).
+* Fixes [#67444](https://github.com/ClickHouse/ClickHouse/issues/67444). [#67873](https://github.com/ClickHouse/ClickHouse/pull/67873) ([Konstantin Bogdanov](https://github.com/thevar1able)).
+* no-msan 00314_sample_factor_virtual_column. [#67874](https://github.com/ClickHouse/ClickHouse/pull/67874) ([Michael Kolupaev](https://github.com/al13n321)).
+* Revert "Revert "Add a test for [#47892](https://github.com/ClickHouse/ClickHouse/issues/47892)"". [#67877](https://github.com/ClickHouse/ClickHouse/pull/67877) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Lazily create invalid files in S3. [#67882](https://github.com/ClickHouse/ClickHouse/pull/67882) ([Antonio Andelic](https://github.com/antonio2368)).
+* Do not try to create azure container if not needed. [#67896](https://github.com/ClickHouse/ClickHouse/pull/67896) ([Anton Popov](https://github.com/CurtizJ)).
+* CI: Fix for setting Mergeable Check from sync. [#67898](https://github.com/ClickHouse/ClickHouse/pull/67898) ([Max K.](https://github.com/maxknv)).
+* Bump rocksdb from v8.10 to v9.4 + enable jemalloc and liburing. [#67904](https://github.com/ClickHouse/ClickHouse/pull/67904) ([Robert Schulze](https://github.com/rschu1ze)).
+* Update version_date.tsv and changelogs after v24.6.3.95-stable. [#67910](https://github.com/ClickHouse/ClickHouse/pull/67910) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Remove some no-parallel tags from tests (Part 3). [#67914](https://github.com/ClickHouse/ClickHouse/pull/67914) ([Raúl Marín](https://github.com/Algunenano)).
+* Follow up [#67235](https://github.com/ClickHouse/ClickHouse/issues/67235). [#67917](https://github.com/ClickHouse/ClickHouse/pull/67917) ([Nikita Taranov](https://github.com/nickitat)).
+* CI: Changelog: Critical Bug Fix to Bug Fix. [#67919](https://github.com/ClickHouse/ClickHouse/pull/67919) ([Max K.](https://github.com/maxknv)).
+* CI: Multi-channel CiBuddy. [#67923](https://github.com/ClickHouse/ClickHouse/pull/67923) ([Max K.](https://github.com/maxknv)).
+* more logs to debug logical error from async inserts. [#67928](https://github.com/ClickHouse/ClickHouse/pull/67928) ([Han Fei](https://github.com/hanfei1991)).
+* Fix stress test error with TDigest statistics. [#67930](https://github.com/ClickHouse/ClickHouse/pull/67930) ([Robert Schulze](https://github.com/rschu1ze)).
+* Remove some no-parallel tags from tests (Part 4). [#67932](https://github.com/ClickHouse/ClickHouse/pull/67932) ([Raúl Marín](https://github.com/Algunenano)).
+* Upgrade QPL to v1.6.0. [#67933](https://github.com/ClickHouse/ClickHouse/pull/67933) ([Maria Zhukova](https://github.com/mzhukova)).
+* CI: Strict job timeout 1.5h for tests, 2h for builds. [#67934](https://github.com/ClickHouse/ClickHouse/pull/67934) ([Max K.](https://github.com/maxknv)).
+* Remove slow tests from fasttest check. [#67941](https://github.com/ClickHouse/ClickHouse/pull/67941) ([Raúl Marín](https://github.com/Algunenano)).
+* Fix memory corruption in usearch. [#67942](https://github.com/ClickHouse/ClickHouse/pull/67942) ([Robert Schulze](https://github.com/rschu1ze)).
+* Backported in [#68547](https://github.com/ClickHouse/ClickHouse/issues/68547): Timeout handling for functional and integration tests, store artifacts and report if timed out - sets 2h default timeout for all jobs. [#67944](https://github.com/ClickHouse/ClickHouse/pull/67944) ([Max K.](https://github.com/maxknv)).
+* Unflake 02099_tsv_raw_format.sh. [#67947](https://github.com/ClickHouse/ClickHouse/pull/67947) ([Robert Schulze](https://github.com/rschu1ze)).
+* This closes: [#67866](https://github.com/ClickHouse/ClickHouse/issues/67866). [#67950](https://github.com/ClickHouse/ClickHouse/pull/67950) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
+* Change log level of an insignificant message in clickhouse-local. [#67952](https://github.com/ClickHouse/ClickHouse/pull/67952) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Add an explicit error for `ALTER MODIFY SQL SECURITY` on non-view tables. [#67953](https://github.com/ClickHouse/ClickHouse/pull/67953) ([pufit](https://github.com/pufit)).
+* Fix flaky `test_storage_s3_queue/test.py::test_multiple_tables_streaming_sync_distributed`. [#67959](https://github.com/ClickHouse/ClickHouse/pull/67959) ([Julia Kartseva](https://github.com/jkartseva)).
+* tests: fix 03002_part_log_rmt_fetch_merge_error flakiness. [#67960](https://github.com/ClickHouse/ClickHouse/pull/67960) ([Azat Khuzhin](https://github.com/azat)).
+* Fix timeout of 02310_clickhouse_local_INSERT_progress_profile_events. [#67961](https://github.com/ClickHouse/ClickHouse/pull/67961) ([Robert Schulze](https://github.com/rschu1ze)).
+* Remove obsolete `--multiquery` parameter (follow-up to [#63898](https://github.com/ClickHouse/ClickHouse/issues/63898)), pt. III. [#67964](https://github.com/ClickHouse/ClickHouse/pull/67964) ([Robert Schulze](https://github.com/rschu1ze)).
+* Update minio in stateless tests. [#67975](https://github.com/ClickHouse/ClickHouse/pull/67975) ([Antonio Andelic](https://github.com/antonio2368)).
+* CI: Integration tests uncover some logging. [#67978](https://github.com/ClickHouse/ClickHouse/pull/67978) ([Max K.](https://github.com/maxknv)).
+* Fix 03130_convert_outer_join_to_inner_join. [#67980](https://github.com/ClickHouse/ClickHouse/pull/67980) ([vdimir](https://github.com/vdimir)).
+* Collect minio audit logs in stateless tests. [#67998](https://github.com/ClickHouse/ClickHouse/pull/67998) ([Antonio Andelic](https://github.com/antonio2368)).
+* Remove some no-parallel tags from tests (Part 5). [#68002](https://github.com/ClickHouse/ClickHouse/pull/68002) ([Raúl Marín](https://github.com/Algunenano)).
+* Minor fixes in tables.md. [#68004](https://github.com/ClickHouse/ClickHouse/pull/68004) ([Ilya Yatsishin](https://github.com/qoega)).
+* Follow up for [#67843](https://github.com/ClickHouse/ClickHouse/issues/67843). [#68007](https://github.com/ClickHouse/ClickHouse/pull/68007) ([Ilya Yatsishin](https://github.com/qoega)).
+* Remove unused CLI option. [#68008](https://github.com/ClickHouse/ClickHouse/pull/68008) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix test `02845_threads_count_in_distributed_queries`. [#68011](https://github.com/ClickHouse/ClickHouse/pull/68011) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* CI: Pass job timeout into tests config. [#68013](https://github.com/ClickHouse/ClickHouse/pull/68013) ([Nikita Fomichev](https://github.com/fm4v)).
+* Add a test for [#57420](https://github.com/ClickHouse/ClickHouse/issues/57420). [#68017](https://github.com/ClickHouse/ClickHouse/pull/68017) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Revert "Revert "Bump rocksdb from v8.10 to v9.4 + enable jemalloc and liburing"". [#68021](https://github.com/ClickHouse/ClickHouse/pull/68021) ([Robert Schulze](https://github.com/rschu1ze)).
+* CI: Fix for filtering jobs in PRs. [#68022](https://github.com/ClickHouse/ClickHouse/pull/68022) ([Max K.](https://github.com/maxknv)).
+* Docs: Update 3rd party library guide. [#68027](https://github.com/ClickHouse/ClickHouse/pull/68027) ([Robert Schulze](https://github.com/rschu1ze)).
+* Refactor tests for (experimental) statistics. [#68034](https://github.com/ClickHouse/ClickHouse/pull/68034) ([Robert Schulze](https://github.com/rschu1ze)).
+* Split `00284_external_aggregation.sql`. [#68037](https://github.com/ClickHouse/ClickHouse/pull/68037) ([Robert Schulze](https://github.com/rschu1ze)).
+* Update version_date.tsv and changelog after v24.7.3.42-stable. [#68045](https://github.com/ClickHouse/ClickHouse/pull/68045) ([robot-clickhouse](https://github.com/robot-clickhouse)).
+* Update test_drop_is_lock_free/test.py. [#68051](https://github.com/ClickHouse/ClickHouse/pull/68051) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Fixes [#67865](https://github.com/ClickHouse/ClickHouse/issues/67865). [#68054](https://github.com/ClickHouse/ClickHouse/pull/68054) ([Konstantin Bogdanov](https://github.com/thevar1able)).
+* Disable randomization of `trace_profile_events` in clickhouse-test. [#68058](https://github.com/ClickHouse/ClickHouse/pull/68058) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Minor CMake cleanup. [#68069](https://github.com/ClickHouse/ClickHouse/pull/68069) ([Robert Schulze](https://github.com/rschu1ze)).
+* If the test cluster is overloaded, sometimes simple query execution [can take more time](https://pastila.nl/?00224e71/f017cd6675b52ccc205c81aa62a47de5#8dB4+C4MOdOi3NLV1dc0Fg==) than `Buffer`'s max time to flush. This PR doubles the timeout and allows to skip the check in case of significant latency. [#68072](https://github.com/ClickHouse/ClickHouse/pull/68072) ([pufit](https://github.com/pufit)).
+* Fix flaky `02675_profile_events_from_query_log_and_client`. [#68097](https://github.com/ClickHouse/ClickHouse/pull/68097) ([Antonio Andelic](https://github.com/antonio2368)).
+* Fix race in `WithRetries`. [#68106](https://github.com/ClickHouse/ClickHouse/pull/68106) ([Antonio Andelic](https://github.com/antonio2368)).
+* Add empty cell to reports when time is missing. [#68112](https://github.com/ClickHouse/ClickHouse/pull/68112) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Fix test `00900_long_parquet_load`. [#68130](https://github.com/ClickHouse/ClickHouse/pull/68130) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* tests: fix 01246_buffer_flush flakiness due to slow trace_log flush. [#68134](https://github.com/ClickHouse/ClickHouse/pull/68134) ([Azat Khuzhin](https://github.com/azat)).
+* Only use Field::safeGet - Field::get prone to type punning. [#68135](https://github.com/ClickHouse/ClickHouse/pull/68135) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
+* tests: attempt to fix 01600_parts_states_metrics_long (by forbid parallel run). [#68136](https://github.com/ClickHouse/ClickHouse/pull/68136) ([Azat Khuzhin](https://github.com/azat)).
+* Fix01710 Timeout. [#68138](https://github.com/ClickHouse/ClickHouse/pull/68138) ([jsc0218](https://github.com/jsc0218)).
+* Remove the extra cell from reports when it is not necessary. [#68145](https://github.com/ClickHouse/ClickHouse/pull/68145) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* Remove "Processing configuration file" message from clickhouse-local. [#68157](https://github.com/ClickHouse/ClickHouse/pull/68157) ([Azat Khuzhin](https://github.com/azat)).
+* tests: fix 02122_join_group_by_timeout flakiness. [#68160](https://github.com/ClickHouse/ClickHouse/pull/68160) ([Azat Khuzhin](https://github.com/azat)).
+* Fix `test_cluster_all_replicas`. [#68178](https://github.com/ClickHouse/ClickHouse/pull/68178) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix leftovers. [#68181](https://github.com/ClickHouse/ClickHouse/pull/68181) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Fix test `01172_transaction_counters`. [#68182](https://github.com/ClickHouse/ClickHouse/pull/68182) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+* Refactor tests for (experimental) statistics. [#68186](https://github.com/ClickHouse/ClickHouse/pull/68186) ([Robert Schulze](https://github.com/rschu1ze)).
+* Remove Log engine from Kafka integration tests. [#68200](https://github.com/ClickHouse/ClickHouse/pull/68200) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).
+* [Green CI] Fix test 01903_correct_block_size_prediction_with_default. [#68203](https://github.com/ClickHouse/ClickHouse/pull/68203) ([Pablo Marcos](https://github.com/pamarcos)).
+* Replace segfault in Replicated database with logical error. [#68250](https://github.com/ClickHouse/ClickHouse/pull/68250) ([Alexander Tokmakov](https://github.com/tavplubix)).
+* Backported in [#68423](https://github.com/ClickHouse/ClickHouse/issues/68423): tests: make 01600_parts_states_metrics_long better. [#68265](https://github.com/ClickHouse/ClickHouse/pull/68265) ([Azat Khuzhin](https://github.com/azat)).
+* Backported in [#68374](https://github.com/ClickHouse/ClickHouse/issues/68374): Rename: S3DiskNoKeyErrors -> DiskS3NoSuchKeyErrors. [#68361](https://github.com/ClickHouse/ClickHouse/pull/68361) ([Miсhael Stetsyuk](https://github.com/mstetsyuk)).
+* Backported in [#68637](https://github.com/ClickHouse/ClickHouse/issues/68637): Check for invalid regexp in JSON SKIP REGEXP section. [#68451](https://github.com/ClickHouse/ClickHouse/pull/68451) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#68485](https://github.com/ClickHouse/ClickHouse/issues/68485): Better inference of date times 2. [#68452](https://github.com/ClickHouse/ClickHouse/pull/68452) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#68540](https://github.com/ClickHouse/ClickHouse/issues/68540): CI: Native build for package_aarch64. [#68457](https://github.com/ClickHouse/ClickHouse/pull/68457) ([Max K.](https://github.com/maxknv)).
+* Backported in [#68518](https://github.com/ClickHouse/ClickHouse/issues/68518): Minor update in Dynamic/JSON serializations. [#68459](https://github.com/ClickHouse/ClickHouse/pull/68459) ([Kruglov Pavel](https://github.com/Avogar)).
+* Backported in [#68558](https://github.com/ClickHouse/ClickHouse/issues/68558): CI: Minor release workflow fix. [#68536](https://github.com/ClickHouse/ClickHouse/pull/68536) ([Max K.](https://github.com/maxknv)).
+* Backported in [#68576](https://github.com/ClickHouse/ClickHouse/issues/68576): CI: Tidy build timeout from 2h to 3h. [#68567](https://github.com/ClickHouse/ClickHouse/pull/68567) ([Max K.](https://github.com/maxknv)).
+

docs/changelogs/v24.8.2.3-lts.md

@@ -0,0 +1,12 @@
+---
+sidebar_position: 1
+sidebar_label: 2024
+---
+
+# 2024 Changelog
+
+### ClickHouse release v24.8.2.3-lts (b54f79ed323) FIXME as compared to v24.8.1.2684-lts (161c62fd295)
+
+#### Bug Fix (user-visible misbehavior in an official stable release)
+* Backported in [#68670](https://github.com/ClickHouse/ClickHouse/issues/68670): Fix `LOGICAL_ERROR`s when functions `sipHash64Keyed`, `sipHash128Keyed`, or `sipHash128ReferenceKeyed` are applied to empty arrays or tuples. [#68630](https://github.com/ClickHouse/ClickHouse/pull/68630) ([Robert Schulze](https://github.com/rschu1ze)).
+

docs/en/development/tests.md

@@ -91,6 +91,28 @@ SELECT 1
 In addition to the above settings, you can use `USE_*` flags from `system.build_options` to define usage of particular ClickHouse features.
 For example, if your test uses a MySQL table, you should add a tag `use-mysql`.
 
+### Specifying limits for random settings
+
+A test can specify minimum and maximum allowed values for settings that can be randomized during test run.
+
+For `.sh` tests limits are written as a comment on the line next to tags or on the second line if no tags are specified:
+
+```bash
+#!/usr/bin/env bash
+# Tags: no-fasttest
+# Random settings limits: max_block_size=(1000, 10000); index_granularity=(100, None)
+```
+
+For `.sql` tests tags are placed as a SQL comment in the line next to tags or in the first line:
+
+```sql
+-- Tags: no-fasttest
+-- Random settings limits: max_block_size=(1000, 10000); index_granularity=(100, None)
+SELECT 1
+```
+
+If you need to specify only one limit, you can use `None` for another one.
+
 ### Choosing the Test Name
 
 The name of the test starts with a five-digit prefix followed by a descriptive name, such as `00422_hash_function_constexpr.sql`. To choose the prefix, find the largest prefix already present in the directory, and increment it by one. In the meantime, some other tests might be added with the same numeric prefix, but this is OK and does not lead to any problems, you don't have to change it later.

docs/en/engines/table-engines/integrations/hdfs.md

@@ -240,7 +240,7 @@ libhdfs3 support HDFS namenode HA.
 ## Storage Settings {#storage-settings}
 
 - [hdfs_truncate_on_insert](/docs/en/operations/settings/settings.md#hdfs_truncate_on_insert) - allows to truncate file before insert into it. Disabled by default.
-- [hdfs_create_multiple_files](/docs/en/operations/settings/settings.md#hdfs_allow_create_multiple_files) - allows to create a new file on each insert if format has suffix. Disabled by default.
+- [hdfs_create_new_file_on_insert](/docs/en/operations/settings/settings.md#hdfs_create_new_file_on_insert) - allows to create a new file on each insert if format has suffix. Disabled by default.
 - [hdfs_skip_empty_files](/docs/en/operations/settings/settings.md#hdfs_skip_empty_files) - allows to skip empty files while reading. Disabled by default.
 
 **See Also**

docs/en/engines/table-engines/integrations/iceberg.md

@@ -6,28 +6,34 @@ sidebar_label: Iceberg
 
 # Iceberg Table Engine
 
-This engine provides a read-only integration with existing Apache [Iceberg](https://iceberg.apache.org/) tables in Amazon S3.
+This engine provides a read-only integration with existing Apache [Iceberg](https://iceberg.apache.org/) tables in Amazon S3, Azure and locally stored tables.
 
 ## Create Table
 
-Note that the Iceberg table must already exist in S3, this command does not take DDL parameters to create a new table.
+Note that the Iceberg table must already exist in the storage, this command does not take DDL parameters to create a new table.
 
 ``` sql
-CREATE TABLE iceberg_table
-    ENGINE = Iceberg(url, [aws_access_key_id, aws_secret_access_key,])
+CREATE TABLE iceberg_table_s3
+    ENGINE = IcebergS3(url,  [, NOSIGN | access_key_id, secret_access_key, [session_token]], format, [,compression])
+
+CREATE TABLE iceberg_table_azure
+    ENGINE = IcebergAzure(connection_string|storage_account_url, container_name, blobpath, [account_name, account_key, format, compression])
+
+CREATE TABLE iceberg_table_local
+    ENGINE = IcebergLocal(path_to_table, [,format] [,compression_method])
 ```
 
-**Engine parameters**
+**Engine arguments**
 
-- `url` — url with the path to an existing Iceberg table.
-- `aws_access_key_id`, `aws_secret_access_key` - Long-term credentials for the [AWS](https://aws.amazon.com/) account user.  You can use these to authenticate your requests. Parameter is optional. If credentials are not specified, they are used from the configuration file.
+Description of the arguments coincides with description of arguments in engines `S3`, `AzureBlobStorage` and `File` correspondingly.
+`format` stands for the format of data files in the Iceberg table.
 
 Engine parameters can be specified using [Named Collections](../../../operations/named-collections.md)
 
 **Example**
 
 ```sql
-CREATE TABLE iceberg_table ENGINE=Iceberg('http://test.s3.amazonaws.com/clickhouse-bucket/test_table', 'test', 'test')
+CREATE TABLE iceberg_table ENGINE=IcebergS3('http://test.s3.amazonaws.com/clickhouse-bucket/test_table', 'test', 'test')
 ```
 
 Using named collections:
@@ -45,9 +51,15 @@ Using named collections:
 ```
 
 ```sql
-CREATE TABLE iceberg_table ENGINE=Iceberg(iceberg_conf, filename = 'test_table')
+CREATE TABLE iceberg_table ENGINE=IcebergS3(iceberg_conf, filename = 'test_table')
+
 ```
 
+**Aliases**
+
+
+Table engine `Iceberg` is an alias to `IcebergS3` now.
+
 ## See also
 
 - [iceberg table function](/docs/en/sql-reference/table-functions/iceberg.md)

docs/en/engines/table-engines/integrations/s3.md

@@ -225,7 +225,7 @@ CREATE TABLE table_with_asterisk (name String, value UInt32)
 ## Storage Settings {#storage-settings}
 
 - [s3_truncate_on_insert](/docs/en/operations/settings/settings.md#s3_truncate_on_insert) - allows to truncate file before insert into it. Disabled by default.
-- [s3_create_multiple_files](/docs/en/operations/settings/settings.md#s3_allow_create_multiple_files) - allows to create a new file on each insert if format has suffix. Disabled by default.
+- [s3_create_new_file_on_insert](/docs/en/operations/settings/settings.md#s3_create_new_file_on_insert) - allows to create a new file on each insert if format has suffix. Disabled by default.
 - [s3_skip_empty_files](/docs/en/operations/settings/settings.md#s3_skip_empty_files) - allows to skip empty files while reading. Disabled by default.
 
 ## S3-related Settings {#settings}

docs/en/engines/table-engines/mergetree-family/annindexes.md

@@ -17,85 +17,121 @@ In terms of SQL, the nearest neighborhood problem can be expressed as follows:
 
 ``` sql
 SELECT *
-FROM table_with_ann_index
+FROM table
 ORDER BY Distance(vectors, Point)
 LIMIT N
 ```
 
-`vectors` contains N-dimensional values of type [Array(Float32)](../../../sql-reference/data-types/array.md), for example embeddings.
-Function `Distance` computes the distance between two vectors. Often, the Euclidean (L2) distance is chosen as distance function but [other
-distance functions](/docs/en/sql-reference/functions/distance-functions.md) are also possible. `Point` is the reference point, e.g. `(0.17,
-0.33, ...)`, and `N` limits the number of search results.
+`vectors` contains N-dimensional values of type [Array(Float32)](../../../sql-reference/data-types/array.md) or Array(Float64), for example
+embeddings. Function `Distance` computes the distance between two vectors. Often, the Euclidean (L2) distance is chosen as distance function
+but [other distance functions](/docs/en/sql-reference/functions/distance-functions.md) are also possible. `Point` is the reference point,
+e.g. `(0.17, 0.33, ...)`, and `N` limits the number of search results.
 
-An alternative formulation of the nearest neighborhood search problem looks as follows:
+This query returns the top-`N` closest points to the reference point. Parameter `N` limits the number of returned values which is useful for
+situations where `MaxDistance` is difficult to determine in advance.
 
-``` sql
-SELECT *
-FROM table_with_ann_index
-WHERE Distance(vectors, Point) < MaxDistance
-LIMIT N
-```
-
-While the first query returns the top-`N` closest points to the reference point, the second query returns all points closer to the reference
-point than a maximally allowed radius `MaxDistance`. Parameter `N` limits the number of returned values which is useful for situations where
-`MaxDistance` is difficult to determine in advance.
-
-With brute force search, both queries are expensive (linear in the number of points) because the distance between all points in `vectors` and
+With brute force search, the query is expensive (linear in the number of points) because the distance between all points in `vectors` and
 `Point` must be computed. To speed this process up, Approximate Nearest Neighbor Search Indexes (ANN indexes) store a compact representation
 of the search space (using clustering, search trees, etc.) which allows to compute an approximate answer much quicker (in sub-linear time).
 
-# Creating and Using ANN Indexes {#creating_using_ann_indexes}
+# Creating and Using Vector Similarity Indexes
 
-Syntax to create an ANN index over an [Array(Float32)](../../../sql-reference/data-types/array.md) column:
+Syntax to create a vector similarity index over an [Array(Float32)](../../../sql-reference/data-types/array.md) column:
 
 ```sql
-CREATE TABLE table_with_ann_index
+CREATE TABLE table
 (
-  `id` Int64,
-  `vectors` Array(Float32),
-  INDEX [ann_index_name vectors TYPE [ann_index_type]([ann_index_parameters]) [GRANULARITY [N]]
+  id Int64,
+  vectors Array(Float32),
+  INDEX index_name vectors TYPE vector_similarity(method, distance_function[, quantization, connectivity, expansion_add, expansion_search]) [GRANULARITY N]
 )
 ENGINE = MergeTree
 ORDER BY id;
 ```
 
+Parameters:
+- `method`: Supports currently only `hnsw`.
+- `distance_function`: either `L2Distance` (the [Euclidean distance](https://en.wikipedia.org/wiki/Euclidean_distance) - the length of a
+  line between two points in Euclidean space), or `cosineDistance` (the [cosine
+  distance](https://en.wikipedia.org/wiki/Cosine_similarity#Cosine_distance)- the angle between two non-zero vectors).
+- `quantization`: either `f64`, `f32`, `f16`, `bf16`, or `i8` for storing the vector with reduced precision (optional, default: `bf16`)
+- `m`: the number of neighbors per graph node (optional, default: 16)
+- `ef_construction`: (optional, default: 128)
+- `ef_search`: (optional, default: 64)
+
+Value 0 for parameters `m`, `ef_construction`, and `ef_search` refers to the default value.
+
+Example:
+
+```sql
+CREATE TABLE table
+(
+  id Int64,
+  vectors Array(Float32),
+  INDEX idx vectors TYPE vector_similarity('hnsw', 'L2Distance') -- Alternative syntax: TYPE vector_similarity(hnsw, L2Distance)
+)
+ENGINE = MergeTree
+ORDER BY id;
+```
+
+Vector similarity indexes are based on the [USearch library](https://github.com/unum-cloud/usearch), which implements the [HNSW
+algorithm](https://arxiv.org/abs/1603.09320), i.e., a hierarchical graph where each point represents a vector and the edges represent
+similarity. Such hierarchical structures can be very efficient on large collections. They may often fetch 0.05% or less data from the
+overall dataset, while still providing 99% recall. This is especially useful when working with high-dimensional vectors, that are expensive
+to load and compare. The library also has several hardware-specific SIMD optimizations to accelerate further distance computations on modern
+Arm (NEON and SVE) and x86 (AVX2 and AVX-512) CPUs and OS-specific optimizations to allow efficient navigation around immutable persistent
+files, without loading them into RAM.
+
+USearch indexes are currently experimental, to use them you first need to `SET allow_experimental_vector_similarity_index = 1`.
+
+Vector similarity indexes currently support two distance functions:
+- `L2Distance`, also called Euclidean distance, is the length of a line segment between two points in Euclidean space
+  ([Wikipedia](https://en.wikipedia.org/wiki/Euclidean_distance)).
+- `cosineDistance`, also called cosine similarity, is the cosine of the angle between two (non-zero) vectors
+  ([Wikipedia](https://en.wikipedia.org/wiki/Cosine_similarity)).
+
+Vector similarity indexes allows storing the vectors in reduced precision formats. Supported scalar kinds are `f64`, `f32`, `f16` or `i8`.
+If no scalar kind was specified during index creation, `f16` is used as default.
+
+For normalized data, `L2Distance` is usually a better choice, otherwise `cosineDistance` is recommended to compensate for scale. If no
+distance function was specified during index creation, `L2Distance` is used as default.
+
+:::note
+All arrays must have same length. To avoid errors, you can use a
+[CONSTRAINT](/docs/en/sql-reference/statements/create/table.md#constraints), for example, `CONSTRAINT constraint_name_1 CHECK
+length(vectors) = 256`. Also, empty `Arrays` and unspecified `Array` values in INSERT statements (i.e. default values) are not supported.
+:::
+
+:::note
+The vector similarity index currently does not work with per-table, non-default `index_granularity` settings (see
+[here](https://github.com/ClickHouse/ClickHouse/pull/51325#issuecomment-1605920475)). If necessary, the value must be changed in config.xml.
+:::
+
 ANN indexes are built during column insertion and merge. As a result, `INSERT` and `OPTIMIZE` statements will be slower than for ordinary
 tables. ANNIndexes are ideally used only with immutable or rarely changed data, respectively when are far more read requests than write
 requests.
 
-ANN indexes support two types of queries:
-
-- ORDER BY queries:
+ANN indexes support these queries:
 
   ``` sql
   SELECT *
-  FROM table_with_ann_index
+  FROM table
   [WHERE ...]
   ORDER BY Distance(vectors, Point)
   LIMIT N
   ```
 
-- WHERE queries:
-
-   ``` sql
-   SELECT *
-   FROM table_with_ann_index
-   WHERE Distance(vectors, Point) < MaxDistance
-   LIMIT N
-   ```
-
 :::tip
 To avoid writing out large vectors, you can use [query
 parameters](/docs/en/interfaces/cli.md#queries-with-parameters-cli-queries-with-parameters), e.g.
 
 ```bash
-clickhouse-client --param_vec='hello' --query="SELECT * FROM table_with_ann_index WHERE L2Distance(vectors, {vec: Array(Float32)}) < 1.0"
+clickhouse-client --param_vec='hello' --query="SELECT * FROM table WHERE L2Distance(vectors, {vec: Array(Float32)}) < 1.0"
 ```
 :::
 
-**Restrictions**: Queries that contain both a `WHERE Distance(vectors, Point) < MaxDistance` and an `ORDER BY Distance(vectors, Point)`
-clause cannot use ANN indexes. Also, the approximate algorithms used to determine the nearest neighbors require a limit, hence queries
-without `LIMIT` clause cannot utilize ANN indexes. Also, ANN indexes are only used if the query has a `LIMIT` value smaller than setting
+**Restrictions**: Approximate algorithms used to determine the nearest neighbors require a limit, hence queries without `LIMIT` clause
+cannot utilize ANN indexes. Also, ANN indexes are only used if the query has a `LIMIT` value smaller than setting
 `max_limit_for_ann_queries` (default: 1 million rows). This is a safeguard to prevent large memory allocations by external libraries for
 approximate neighbor search.
 
@@ -122,128 +158,3 @@ brute-force distance calculation over all rows of the granules. With a small `GR
 equally good, only the processing performance differs. It is generally recommended to use a large `GRANULARITY` for ANN indexes and fall
 back to a smaller `GRANULARITY` values only in case of problems like excessive memory consumption of the ANN structures. If no `GRANULARITY`
 was specified for ANN indexes, the default value is 100 million.
-
-
-# Available ANN Indexes {#available_ann_indexes}
-
-- [Annoy](/docs/en/engines/table-engines/mergetree-family/annindexes.md#annoy-annoy)
-
-- [USearch](/docs/en/engines/table-engines/mergetree-family/annindexes.md#usearch-usearch)
-
-## Annoy {#annoy}
-
-Annoy indexes are currently experimental, to use them you first need to `SET allow_experimental_annoy_index = 1`. They are also currently
-disabled on ARM due to memory safety problems with the algorithm.
-
-This type of ANN index is based on the [Annoy library](https://github.com/spotify/annoy) which recursively divides the space into random
-linear surfaces (lines in 2D, planes in 3D etc.).
-
-<div class='vimeo-container'>
-  <iframe src="//www.youtube.com/embed/QkCCyLW0ehU"
-    width="640"
-    height="360"
-    frameborder="0"
-    allow="autoplay;
-    fullscreen;
-    picture-in-picture"
-    allowfullscreen>
-  </iframe>
-</div>
-
-Syntax to create an Annoy index over an [Array(Float32)](../../../sql-reference/data-types/array.md) column:
-
-```sql
-CREATE TABLE table_with_annoy_index
-(
-  id Int64,
-  vectors Array(Float32),
-  INDEX [ann_index_name] vectors TYPE annoy([Distance[, NumTrees]]) [GRANULARITY N]
-)
-ENGINE = MergeTree
-ORDER BY id;
-```
-
-Annoy currently supports two distance functions:
-- `L2Distance`, also called Euclidean distance, is the length of a line segment between two points in Euclidean space
-  ([Wikipedia](https://en.wikipedia.org/wiki/Euclidean_distance)).
-- `cosineDistance`, also called cosine similarity, is the cosine of the angle between two (non-zero) vectors
-  ([Wikipedia](https://en.wikipedia.org/wiki/Cosine_similarity)).
-
-For normalized data, `L2Distance` is usually a better choice, otherwise `cosineDistance` is recommended to compensate for scale. If no
-distance function was specified during index creation, `L2Distance` is used as default.
-
-Parameter `NumTrees` is the number of trees which the algorithm creates (default if not specified: 100). Higher values of `NumTree` mean
-more accurate search results but slower index creation / query times (approximately linearly) as well as larger index sizes.
-
-:::note
-All arrays must have same length. To avoid errors, you can use a
-[CONSTRAINT](/docs/en/sql-reference/statements/create/table.md#constraints), for example, `CONSTRAINT constraint_name_1 CHECK
-length(vectors) = 256`. Also, empty `Arrays` and unspecified `Array` values in INSERT statements (i.e. default values) are not supported.
-:::
-
-The creation of Annoy indexes (whenever a new part is build, e.g. at the end of a merge) is a relatively slow process. You can increase
-setting `max_threads_for_annoy_index_creation` (default: 4) which controls how many threads are used to create an Annoy index. Please be
-careful with this setting, it is possible that multiple indexes are created in parallel in which case there can be overparallelization.
-
-Setting `annoy_index_search_k_nodes` (default: `NumTrees * LIMIT`) determines how many tree nodes are inspected during SELECTs. Larger
-values mean more accurate results at the cost of longer query runtime:
-
-```sql
-SELECT *
-FROM table_name
-ORDER BY L2Distance(vectors, Point)
-LIMIT N
-SETTINGS annoy_index_search_k_nodes=100;
-```
-
-:::note
-The Annoy index currently does not work with per-table, non-default `index_granularity` settings (see
-[here](https://github.com/ClickHouse/ClickHouse/pull/51325#issuecomment-1605920475)). If necessary, the value must be changed in config.xml.
-:::
-
-## USearch {#usearch}
-
-This type of ANN index is based on the [USearch library](https://github.com/unum-cloud/usearch), which implements the [HNSW
-algorithm](https://arxiv.org/abs/1603.09320), i.e., builds a hierarchical graph where each point represents a vector and the edges represent
-similarity. Such hierarchical structures can be very efficient on large collections. They may often fetch 0.05% or less data from the
-overall dataset, while still providing 99% recall. This is especially useful when working with high-dimensional vectors,
-that are expensive to load and compare. The library also has several hardware-specific SIMD optimizations to accelerate further
-distance computations on modern Arm (NEON and SVE) and x86 (AVX2 and AVX-512) CPUs and OS-specific optimizations to allow efficient
-navigation around immutable persistent files, without loading them into RAM.
-
-<div class='vimeo-container'>
-  <iframe src="//www.youtube.com/embed/UMrhB3icP9w"
-    width="640"
-    height="360"
-    frameborder="0"
-    allow="autoplay;
-    fullscreen;
-    picture-in-picture"
-    allowfullscreen>
-  </iframe>
-</div>
-
-Syntax to create an USearch index over an [Array](../../../sql-reference/data-types/array.md) column:
-
-```sql
-CREATE TABLE table_with_usearch_index
-(
-  id Int64,
-  vectors Array(Float32),
-  INDEX [ann_index_name] vectors TYPE usearch([Distance[, ScalarKind]]) [GRANULARITY N]
-)
-ENGINE = MergeTree
-ORDER BY id;
-```
-
-USearch currently supports two distance functions:
-- `L2Distance`, also called Euclidean distance, is the length of a line segment between two points in Euclidean space
-  ([Wikipedia](https://en.wikipedia.org/wiki/Euclidean_distance)).
-- `cosineDistance`, also called cosine similarity, is the cosine of the angle between two (non-zero) vectors
-  ([Wikipedia](https://en.wikipedia.org/wiki/Cosine_similarity)).
-
-USearch allows storing the vectors in reduced precision formats. Supported scalar kinds are `f64`, `f32`, `f16` or `i8`. If no scalar kind
-was specified during index creation, `f16` is used as default.
-
-For normalized data, `L2Distance` is usually a better choice, otherwise `cosineDistance` is recommended to compensate for scale. If no
-distance function was specified during index creation, `L2Distance` is used as default.

docs/en/engines/table-engines/mergetree-family/mergetree.md

@@ -80,7 +80,7 @@ For partitioning by month, use the `toYYYYMM(date_column)` expression, where `da
 `PRIMARY KEY` — The primary key if it [differs from the sorting key](#choosing-a-primary-key-that-differs-from-the-sorting-key). Optional.
 
 Specifying a sorting key (using `ORDER BY` clause) implicitly specifies a primary key.
-It is usually not necessary to specify the primary key in addition to the primary key.
+It is usually not necessary to specify the primary key in addition to the sorting key.
 
 #### SAMPLE BY
 

docs/en/engines/table-engines/special/url.md

@@ -109,6 +109,7 @@ For partitioning by month, use the `toYYYYMM(date_column)` expression, where `da
 - `_file` — Resource name of the `URL`. Type: `LowCardinalty(String)`.
 - `_size` — Size of the resource in bytes. Type: `Nullable(UInt64)`. If the size is unknown, the value is `NULL`.
 - `_time` — Last modified time of the file. Type: `Nullable(DateTime)`. If the time is unknown, the value is `NULL`.
+- `_headers` - HTTP response headers. Type: `Map(LowCardinality(String), LowCardinality(String))`.
 
 ## Storage Settings {#storage-settings}
 

docs/en/interfaces/http.md

@@ -58,7 +58,7 @@ Connection: Close
 Content-Type: text/tab-separated-values; charset=UTF-8
 X-ClickHouse-Server-Display-Name: clickhouse.ru-central1.internal
 X-ClickHouse-Query-Id: 5abe861c-239c-467f-b955-8a201abb8b7f
-X-ClickHouse-Summary: {"read_rows":"0","read_bytes":"0","written_rows":"0","written_bytes":"0","total_rows_to_read":"0","elapsed_ns":"662334"}
+X-ClickHouse-Summary: {"read_rows":"0","read_bytes":"0","written_rows":"0","written_bytes":"0","total_rows_to_read":"0","elapsed_ns":"662334", "real_time_microseconds": "0"}
 
 1
 ```
@@ -472,7 +472,7 @@ $ curl -v 'http://localhost:8123/predefined_query'
 < X-ClickHouse-Format: Template
 < X-ClickHouse-Timezone: Asia/Shanghai
 < Keep-Alive: timeout=10
-< X-ClickHouse-Summary: {"read_rows":"0","read_bytes":"0","written_rows":"0","written_bytes":"0","total_rows_to_read":"0","elapsed_ns":"662334"}
+< X-ClickHouse-Summary: {"read_rows":"0","read_bytes":"0","written_rows":"0","written_bytes":"0","total_rows_to_read":"0","elapsed_ns":"662334", "real_time_microseconds":"0"}
 <
 # HELP "Query" "Number of executing queries"
 # TYPE "Query" counter
@@ -668,7 +668,7 @@ $ curl -vv  -H 'XXX:xxx' 'http://localhost:8123/hi'
 < Content-Type: text/html; charset=UTF-8
 < Transfer-Encoding: chunked
 < Keep-Alive: timeout=10
-< X-ClickHouse-Summary: {"read_rows":"0","read_bytes":"0","written_rows":"0","written_bytes":"0","total_rows_to_read":"0","elapsed_ns":"662334"}
+< X-ClickHouse-Summary: {"read_rows":"0","read_bytes":"0","written_rows":"0","written_bytes":"0","total_rows_to_read":"0","elapsed_ns":"662334", "real_time_microseconds":"0"}
 <
 * Connection #0 to host localhost left intact
 Say Hi!%
@@ -708,7 +708,7 @@ $ curl -v  -H 'XXX:xxx' 'http://localhost:8123/get_config_static_handler'
 < Content-Type: text/plain; charset=UTF-8
 < Transfer-Encoding: chunked
 < Keep-Alive: timeout=10
-< X-ClickHouse-Summary: {"read_rows":"0","read_bytes":"0","written_rows":"0","written_bytes":"0","total_rows_to_read":"0","elapsed_ns":"662334"}
+< X-ClickHouse-Summary: {"read_rows":"0","read_bytes":"0","written_rows":"0","written_bytes":"0","total_rows_to_read":"0","elapsed_ns":"662334", "real_time_microseconds":"0"}
 <
 * Connection #0 to host localhost left intact
 <html ng-app="SMI2"><head><base href="http://ui.tabix.io/"></head><body><div ui-view="" class="content-ui"></div><script src="http://loader.tabix.io/master.js"></script></body></html>%
@@ -766,7 +766,7 @@ $ curl -vv -H 'XXX:xxx' 'http://localhost:8123/get_absolute_path_static_handler'
 < Content-Type: text/html; charset=UTF-8
 < Transfer-Encoding: chunked
 < Keep-Alive: timeout=10
-< X-ClickHouse-Summary: {"read_rows":"0","read_bytes":"0","written_rows":"0","written_bytes":"0","total_rows_to_read":"0","elapsed_ns":"662334"}
+< X-ClickHouse-Summary: {"read_rows":"0","read_bytes":"0","written_rows":"0","written_bytes":"0","total_rows_to_read":"0","elapsed_ns":"662334", "real_time_microseconds":"0"}
 <
 <html><body>Absolute Path File</body></html>
 * Connection #0 to host localhost left intact
@@ -785,7 +785,7 @@ $ curl -vv -H 'XXX:xxx' 'http://localhost:8123/get_relative_path_static_handler'
 < Content-Type: text/html; charset=UTF-8
 < Transfer-Encoding: chunked
 < Keep-Alive: timeout=10
-< X-ClickHouse-Summary: {"read_rows":"0","read_bytes":"0","written_rows":"0","written_bytes":"0","total_rows_to_read":"0","elapsed_ns":"662334"}
+< X-ClickHouse-Summary: {"read_rows":"0","read_bytes":"0","written_rows":"0","written_bytes":"0","total_rows_to_read":"0","elapsed_ns":"662334", "real_time_microseconds":"0"}
 <
 <html><body>Relative Path File</body></html>
 * Connection #0 to host localhost left intact

docs/en/interfaces/schema-inference.md

@@ -359,13 +359,14 @@ DESC format(JSONEachRow, '{"int" : 42, "float" : 42.42, "string" : "Hello, World
 Dates, DateTimes:
 
 ```sql
-DESC format(JSONEachRow, '{"date" : "2022-01-01", "datetime" : "2022-01-01 00:00:00"}')
+DESC format(JSONEachRow, '{"date" : "2022-01-01", "datetime" : "2022-01-01 00:00:00", "datetime64" : "2022-01-01 00:00:00.000"}')
 ```
 ```response
-┌─name─────┬─type────────────────────┬─default_type─┬─default_expression─┬─comment─┬─codec_expression─┬─ttl_expression─┐
-│ date     │ Nullable(Date)          │              │                    │         │                  │                │
-│ datetime │ Nullable(DateTime64(9)) │              │                    │         │                  │                │
-└──────────┴─────────────────────────┴──────────────┴────────────────────┴─────────┴──────────────────┴────────────────┘
+┌─name───────┬─type────────────────────┬─default_type─┬─default_expression─┬─comment─┬─codec_expression─┬─ttl_expression─┐
+│ date       │ Nullable(Date)          │              │                    │         │                  │                │
+│ datetime   │ Nullable(DateTime)      │              │                    │         │                  │                │
+│ datetime64 │ Nullable(DateTime64(9)) │              │                    │         │                  │                │
+└────────────┴─────────────────────────┴──────────────┴────────────────────┴─────────┴──────────────────┴────────────────┘
 ```
 
 Arrays:
@@ -759,12 +760,13 @@ DESC format(CSV, 'Hello world!,World hello!')
 Dates, DateTimes:
 
 ```sql
-DESC format(CSV, '"2020-01-01","2020-01-01 00:00:00"')
+DESC format(CSV, '"2020-01-01","2020-01-01 00:00:00","2022-01-01 00:00:00.000"')
 ```
 ```response
 ┌─name─┬─type────────────────────┬─default_type─┬─default_expression─┬─comment─┬─codec_expression─┬─ttl_expression─┐
 │ c1   │ Nullable(Date)          │              │                    │         │                  │                │
-│ c2   │ Nullable(DateTime64(9)) │              │                    │         │                  │                │
+│ c2   │ Nullable(DateTime)      │              │                    │         │                  │                │
+│ c3   │ Nullable(DateTime64(9)) │              │                    │         │                  │                │
 └──────┴─────────────────────────┴──────────────┴────────────────────┴─────────┴──────────────────┴────────────────┘
 ```
 
@@ -956,12 +958,13 @@ DESC format(TSKV, 'int=42	float=42.42	bool=true	string=Hello,World!\n')
 Dates, DateTimes:
 
 ```sql
-DESC format(TSV, '2020-01-01	2020-01-01 00:00:00')
+DESC format(TSV, '2020-01-01	2020-01-01 00:00:00	2022-01-01 00:00:00.000')
 ```
 ```response
 ┌─name─┬─type────────────────────┬─default_type─┬─default_expression─┬─comment─┬─codec_expression─┬─ttl_expression─┐
 │ c1   │ Nullable(Date)          │              │                    │         │                  │                │
-│ c2   │ Nullable(DateTime64(9)) │              │                    │         │                  │                │
+│ c2   │ Nullable(DateTime)      │              │                    │         │                  │                │
+│ c3   │ Nullable(DateTime64(9)) │              │                    │         │                  │                │
 └──────┴─────────────────────────┴──────────────┴────────────────────┴─────────┴──────────────────┴────────────────┘
 ```
 
@@ -1126,12 +1129,13 @@ DESC format(Values, $$(42, 42.42, true, 'Hello,World!')$$)
 Dates, DateTimes:
 
 ```sql
-DESC format(Values, $$('2020-01-01', '2020-01-01 00:00:00')$$)
-```
+ DESC format(Values, $$('2020-01-01', '2020-01-01 00:00:00', '2022-01-01 00:00:00.000')$$)
+ ```
 ```response
 ┌─name─┬─type────────────────────┬─default_type─┬─default_expression─┬─comment─┬─codec_expression─┬─ttl_expression─┐
 │ c1   │ Nullable(Date)          │              │                    │         │                  │                │
-│ c2   │ Nullable(DateTime64(9)) │              │                    │         │                  │                │
+│ c2   │ Nullable(DateTime)      │              │                    │         │                  │                │
+│ c3   │ Nullable(DateTime64(9)) │              │                    │         │                  │                │
 └──────┴─────────────────────────┴──────────────┴────────────────────┴─────────┴──────────────────┴────────────────┘
 ```
 
@@ -1385,7 +1389,7 @@ DESC format(JSONEachRow, '{"id" : 1, "age" : 25, "name" : "Josh", "status" : nul
 #### schema_inference_make_columns_nullable
 
 Controls making inferred types `Nullable` in schema inference for formats without information about nullability.
-If the setting is enabled, all inferred type will be `Nullable`, if disabled, the inferred type will be `Nullable` only if `input_format_null_as_default` is disabled and the column contains `NULL` in a sample that is parsed during schema inference.
+If the setting is enabled, all inferred type will be `Nullable`, if disabled, the inferred type will never be `Nullable`, if set to `auto`, the inferred type will be `Nullable` only if the column contains `NULL` in a sample that is parsed during schema inference or file metadata contains information about column nullability.
 
 Enabled by default.
 
@@ -1408,15 +1412,13 @@ DESC format(JSONEachRow, $$
 └─────────┴─────────────────────────┴──────────────┴────────────────────┴─────────┴──────────────────┴────────────────┘
 ```
 ```sql
-SET schema_inference_make_columns_nullable = 0;
-SET input_format_null_as_default = 0;    
+SET schema_inference_make_columns_nullable = 'auto';
 DESC format(JSONEachRow, $$
                                 {"id" :  1, "age" :  25, "name" : "Josh", "status" : null, "hobbies" : ["football", "cooking"]}
                                 {"id" :  2, "age" :  19, "name" :  "Alan", "status" : "married", "hobbies" :  ["tennis", "art"]}
                          $$)
 ```
 ```response
-
 ┌─name────┬─type─────────────┬─default_type─┬─default_expression─┬─comment─┬─codec_expression─┬─ttl_expression─┐
 │ id      │ Int64            │              │                    │         │                  │                │
 │ age     │ Int64            │              │                    │         │                  │                │
@@ -1428,7 +1430,6 @@ DESC format(JSONEachRow, $$
 
 ```sql
 SET schema_inference_make_columns_nullable = 0;
-SET input_format_null_as_default = 1;    
 DESC format(JSONEachRow, $$
                                 {"id" :  1, "age" :  25, "name" : "Josh", "status" : null, "hobbies" : ["football", "cooking"]}
                                 {"id" :  2, "age" :  19, "name" :  "Alan", "status" : "married", "hobbies" :  ["tennis", "art"]}
@@ -1504,8 +1505,8 @@ DESC format(JSONEachRow, $$
 
 #### input_format_try_infer_datetimes
 
-If enabled, ClickHouse will try to infer type `DateTime64` from string fields in schema inference for text formats.
-If all fields from a column in sample data were successfully parsed as datetimes, the result type will be `DateTime64(9)`,
+If enabled, ClickHouse will try to infer type `DateTime` or `DateTime64` from string fields in schema inference for text formats.
+If all fields from a column in sample data were successfully parsed as datetimes, the result type will be `DateTime` or `DateTime64(9)` (if any datetime had fractional part),
 if at least one field was not parsed as datetime, the result type will be `String`.
 
 Enabled by default.
@@ -1513,39 +1514,66 @@ Enabled by default.
 **Examples**
 
 ```sql
-SET input_format_try_infer_datetimes = 0
+SET input_format_try_infer_datetimes = 0;
 DESC format(JSONEachRow, $$
-                                {"datetime" : "2021-01-01 00:00:00.000"}
-                                {"datetime" : "2022-01-01 00:00:00.000"}
+                                {"datetime" : "2021-01-01 00:00:00", "datetime64" : "2021-01-01 00:00:00.000"}
+                                {"datetime" : "2022-01-01 00:00:00", "datetime64" : "2022-01-01 00:00:00.000"}
                          $$)
 ```
 ```response
-┌─name─────┬─type─────────────┬─default_type─┬─default_expression─┬─comment─┬─codec_expression─┬─ttl_expression─┐
-│ datetime │ Nullable(String) │              │                    │         │                  │                │
-└──────────┴──────────────────┴──────────────┴────────────────────┴─────────┴──────────────────┴────────────────┘
+┌─name───────┬─type─────────────┬─default_type─┬─default_expression─┬─comment─┬─codec_expression─┬─ttl_expression─┐
+│ datetime   │ Nullable(String) │              │                    │         │                  │                │
+│ datetime64 │ Nullable(String) │              │                    │         │                  │                │
+└────────────┴──────────────────┴──────────────┴────────────────────┴─────────┴──────────────────┴────────────────┘
 ```
 ```sql
-SET input_format_try_infer_datetimes = 1
+SET input_format_try_infer_datetimes = 1;
 DESC format(JSONEachRow, $$
-                                {"datetime" : "2021-01-01 00:00:00.000"}
-                                {"datetime" : "2022-01-01 00:00:00.000"}
+                                {"datetime" : "2021-01-01 00:00:00", "datetime64" : "2021-01-01 00:00:00.000"}
+                                {"datetime" : "2022-01-01 00:00:00", "datetime64" : "2022-01-01 00:00:00.000"}
                          $$)
 ```
 ```response
-┌─name─────┬─type────────────────────┬─default_type─┬─default_expression─┬─comment─┬─codec_expression─┬─ttl_expression─┐
-│ datetime │ Nullable(DateTime64(9)) │              │                    │         │                  │                │
-└──────────┴─────────────────────────┴──────────────┴────────────────────┴─────────┴──────────────────┴────────────────┘
+┌─name───────┬─type────────────────────┬─default_type─┬─default_expression─┬─comment─┬─codec_expression─┬─ttl_expression─┐
+│ datetime   │ Nullable(DateTime)      │              │                    │         │                  │                │
+│ datetime64 │ Nullable(DateTime64(9)) │              │                    │         │                  │                │
+└────────────┴─────────────────────────┴──────────────┴────────────────────┴─────────┴──────────────────┴────────────────┘
 ```
 ```sql
 DESC format(JSONEachRow, $$
-                                {"datetime" : "2021-01-01 00:00:00.000"}
-                                {"datetime" : "unknown"}
+                                {"datetime" : "2021-01-01 00:00:00", "datetime64" : "2021-01-01 00:00:00.000"}
+                                {"datetime" : "unknown", "datetime64" : "unknown"}
                          $$)
 ```
 ```response
-┌─name─────┬─type─────────────┬─default_type─┬─default_expression─┬─comment─┬─codec_expression─┬─ttl_expression─┐
-│ datetime │ Nullable(String) │              │                    │         │                  │                │
-└──────────┴──────────────────┴──────────────┴────────────────────┴─────────┴──────────────────┴────────────────┘
+┌─name───────┬─type─────────────┬─default_type─┬─default_expression─┬─comment─┬─codec_expression─┬─ttl_expression─┐
+│ datetime   │ Nullable(String) │              │                    │         │                  │                │
+│ datetime64 │ Nullable(String) │              │                    │         │                  │                │
+└────────────┴──────────────────┴──────────────┴────────────────────┴─────────┴──────────────────┴────────────────┘
+```
+
+#### input_format_try_infer_datetimes_only_datetime64
+
+If enabled, ClickHouse will always infer `DateTime64(9)` when `input_format_try_infer_datetimes` is enabled even if datetime values don't contain fractional part.
+
+Disabled by default.
+
+**Examples**
+
+```sql
+SET input_format_try_infer_datetimes = 1;
+SET input_format_try_infer_datetimes_only_datetime64 = 1;
+DESC format(JSONEachRow, $$
+                                {"datetime" : "2021-01-01 00:00:00", "datetime64" : "2021-01-01 00:00:00.000"}
+                                {"datetime" : "2022-01-01 00:00:00", "datetime64" : "2022-01-01 00:00:00.000"}
+                         $$)
+```
+
+```text
+┌─name───────┬─type────────────────────┬─default_type─┬─default_expression─┬─comment─┬─codec_expression─┬─ttl_expression─┐
+│ datetime   │ Nullable(DateTime64(9)) │              │                    │         │                  │                │
+│ datetime64 │ Nullable(DateTime64(9)) │              │                    │         │                  │                │
+└────────────┴─────────────────────────┴──────────────┴────────────────────┴─────────┴──────────────────┴────────────────┘
 ```
 
 Note: Parsing datetimes during schema inference respect setting [date_time_input_format](/docs/en/operations/settings/settings-formats.md#date_time_input_format)

docs/en/interfaces/third-party/gui.md

@@ -10,7 +10,7 @@ sidebar_label: Visual Interfaces
 
 ### ch-ui {#ch-ui}
 
-[ch-ui](https://github.com/caioricciuti/ch-ui) is a simple React.js app interface for ClickHouse databases, designed for executing queries and visualizing data. Built with React and the ClickHouse client for web, it offers a sleek and user-friendly UI for easy database interactions.
+[ch-ui](https://github.com/caioricciuti/ch-ui) is a simple React.js app interface for ClickHouse databases designed for executing queries and visualizing data. Built with React and the ClickHouse client for web, it offers a sleek and user-friendly UI for easy database interactions.
 
 Features:
 
@@ -25,7 +25,7 @@ Web interface for ClickHouse in the [Tabix](https://github.com/tabixio/tabix) pr
 
 Features:
 
-- Works with ClickHouse directly from the browser, without the need to install additional software.
+- Works with ClickHouse directly from the browser without the need to install additional software.
 - Query editor with syntax highlighting.
 - Auto-completion of commands.
 - Tools for graphical analysis of query execution.
@@ -63,7 +63,7 @@ Features:
 
 - Table list with filtering and metadata.
 - Table preview with filtering and sorting.
-- Read-only queries execution.
+- Read-only query execution.
 
 ### Redash {#redash}
 
@@ -75,23 +75,23 @@ Features:
 
 - Powerful editor of queries.
 - Database explorer.
-- Visualization tools, that allow you to represent data in different forms.
+- Visualization tool that allows you to represent data in different forms.
 
 ### Grafana {#grafana}
 
 [Grafana](https://grafana.com/grafana/plugins/grafana-clickhouse-datasource/) is a platform for monitoring and visualization.
 
-"Grafana allows you to query, visualize, alert on and understand your metrics no matter where they are stored. Create, explore, and share dashboards with your team and foster a data driven culture. Trusted and loved by the community" — grafana.com.
+"Grafana allows you to query, visualize, alert on and understand your metrics no matter where they are stored. Create, explore, and share dashboards with your team and foster a data-driven culture. Trusted and loved by the community" — grafana.com.
 
-ClickHouse datasource plugin provides a support for ClickHouse as a backend database.
+ClickHouse data source plugin provides support for ClickHouse as a backend database.
 
-### qryn (#qryn)
+### qryn {#qryn}
 
 [qryn](https://metrico.in) is a polyglot, high-performance observability stack for ClickHouse _(formerly cLoki)_ with native Grafana integrations allowing users to ingest and analyze logs, metrics and telemetry traces from any agent supporting Loki/LogQL, Prometheus/PromQL, OTLP/Tempo, Elastic, InfluxDB and many more.
 
 Features:
 
-- Built in Explore UI and LogQL CLI for querying, extracting and visualizing data
+- Built-in Explore UI and LogQL CLI for querying, extracting and visualizing data
 - Native Grafana APIs support for querying, processing, ingesting, tracing and alerting without plugins
 - Powerful pipeline to dynamically search, filter and extract data from logs, events, traces and beyond
 - Ingestion and PUSH APIs transparently compatible with LogQL, PromQL, InfluxDB, Elastic and many more
@@ -139,7 +139,7 @@ Features:
 
 ### DBM {#dbm}
 
-[DBM](https://dbm.incubator.edurt.io/) DBM is a visual management tool for ClickHouse!
+[DBM](https://github.com/devlive-community/dbm) DBM is a visual management tool for ClickHouse!
 
 Features:
 
@@ -151,7 +151,7 @@ Features:
 - Support custom query
 - Support multiple data sources management(connection test, monitoring)
 - Support monitor (processor, connection, query)
-- Support migrate data
+- Support migrating data
 
 ### Bytebase {#bytebase}
 
@@ -169,7 +169,7 @@ Features:
 
 ### Zeppelin-Interpreter-for-ClickHouse {#zeppelin-interpreter-for-clickhouse}
 
-[Zeppelin-Interpreter-for-ClickHouse](https://github.com/SiderZhang/Zeppelin-Interpreter-for-ClickHouse) is a [Zeppelin](https://zeppelin.apache.org) interpreter for ClickHouse. Compared with JDBC interpreter, it can provide better timeout control for long running queries.
+[Zeppelin-Interpreter-for-ClickHouse](https://github.com/SiderZhang/Zeppelin-Interpreter-for-ClickHouse) is a [Zeppelin](https://zeppelin.apache.org) interpreter for ClickHouse. Compared with the JDBC interpreter, it can provide better timeout control for long-running queries.
 
 ### ClickCat {#clickcat}
 
@@ -179,7 +179,7 @@ Features:
 
 - An online SQL editor which can run your SQL code without any installing.
 - You can observe all processes and mutations. For those unfinished processes, you can kill them in ui.
-- The Metrics contains Cluster Analysis,Data Analysis,Query Analysis.
+- The Metrics contain Cluster Analysis, Data Analysis, and Query Analysis.
 
 ### ClickVisual {#clickvisual}
 
@@ -332,7 +332,7 @@ Learn more about the product at [TABLUM.IO](https://tablum.io/)
 
 ### CKMAN {#ckman}
 
-[CKMAN] (https://www.github.com/housepower/ckman) is a tool for managing and monitoring ClickHouse clusters!
+[CKMAN](https://www.github.com/housepower/ckman) is a tool for managing and monitoring ClickHouse clusters!
 
 Features:
 

docs/en/operations/named-collections.md

@@ -73,13 +73,21 @@ In the above example the `password_sha256_hex` value is the hexadecimal represen
 
 ### Storage for named collections
 
-Named collections can either be stored on local disk or in zookeeper/keeper. By default local storage is used.
+Named collections can either be stored on local disk or in ZooKeeper/Keeper. By default local storage is used.
+They can also be stored using encryption with the same algorithms used for [disk encryption](storing-data#encrypted-virtual-file-system),
+where `aes_128_ctr` is used by default.
 
-To configure named collections storage in keeper and a `type` (equal to either `keeper` or `zookeeper`) and `path` (path in keeper, where named collections will be stored) to `named_collections_storage` section in configuration file:
+To configure named collections storage you need to specify a `type`. This can be either `local` or `keeper`/`zookeeper`. For encrypted storage,
+you can use `local_encrypted` or `keeper_encrypted`/`zookeeper_encrypted`.
+
+To use ZooKeeper/Keeper we also need to set up a `path` (path in ZooKeeper/Keeper, where named collections will be stored) to
+`named_collections_storage` section in configuration file. The following example uses encryption and ZooKeeper/Keeper:
 ```
 <clickhouse>
   <named_collections_storage>
-    <type>zookeeper</type>
+    <type>zookeeper_encrypted</type>
+    <key_hex>bebec0cabebec0cabebec0cabebec0ca</key_hex>
+    <algorithm>aes_128_ctr</algorithm>
     <path>/named_collections_path/</path>
     <update_timeout_ms>1000</update_timeout_ms>
   </named_collections_storage>
@@ -307,8 +315,22 @@ SELECT dictGet('dict', 'B', 2);
 
 ## Named collections for accessing PostgreSQL database
 
-The description of parameters see [postgresql](../sql-reference/table-functions/postgresql.md).
+The description of parameters see [postgresql](../sql-reference/table-functions/postgresql.md). Additionally, there are aliases:
 
+- `username` for `user`
+- `db` for `database`.
+
+Parameter `addresses_expr` is used in a collection instead of `host:port`. The parameter is optional, because there are other optional ones: `host`, `hostname`, `port`. The following pseudo code explains the priority:
+
+```sql
+CASE
+    WHEN collection['addresses_expr'] != '' THEN collection['addresses_expr']
+    WHEN collection['host'] != ''           THEN collection['host'] || ':' || if(collection['port'] != '', collection['port'], '5432')
+    WHEN collection['hostname'] != ''       THEN collection['hostname'] || ':' || if(collection['port'] != '', collection['port'], '5432')
+END
+```
+
+Example of creation:
 ```sql
 CREATE NAMED COLLECTION mypg AS
 user = 'pguser',
@@ -316,7 +338,7 @@ password = 'jw8s0F4',
 host = '127.0.0.1',
 port = 5432,
 database = 'test',
-schema = 'test_schema',
+schema = 'test_schema'
 ```
 
 Example of configuration:
@@ -369,6 +391,10 @@ SELECT * FROM mypgtable;
 └───┘
 ```
 
+:::note
+PostgreSQL copies data from the named collection when the table is being created. A change in the collection does not affect the existing tables.
+:::
+
 ### Example of using named collections with database with engine PostgreSQL
 
 ```sql
@@ -478,7 +504,7 @@ kafka_topic_list = 'kafka_topic',
 kafka_group_name = 'consumer_group',
 kafka_format = 'JSONEachRow',
 kafka_max_block_size = '1048576';
-       
+
 ```
 ### XML example
 

docs/en/operations/query-cache.md

@@ -143,6 +143,20 @@ value can be specified at session, profile or query level using setting [query_c
 Entries in the query cache are compressed by default. This reduces the overall memory consumption at the cost of slower writes into / reads
 from the query cache. To disable compression, use setting [query_cache_compress_entries](settings/settings.md#query-cache-compress-entries).
 
+Sometimes it is useful to keep multiple results for the same query cached. This can be achieved using setting
+[query_cache_tag](settings/settings.md#query-cache-tag) that acts as as a label (or namespace) for a query cache entries. The query cache
+considers results of the same query with different tags different.
+
+Example for creating three different query cache entries for the same query:
+
+```sql
+SELECT 1 SETTINGS use_query_cache = true; -- query_cache_tag is implicitly '' (empty string)
+SELECT 1 SETTINGS use_query_cache = true, query_cache_tag = 'tag 1';
+SELECT 1 SETTINGS use_query_cache = true, query_cache_tag = 'tag 2';
+```
+
+To remove only entries with tag `tag` from the query cache, you can use statement `SYSTEM DROP QUERY CACHE TAG 'tag'`.
+
 ClickHouse reads table data in blocks of [max_block_size](settings/settings.md#setting-max_block_size) rows. Due to filtering, aggregation,
 etc., result blocks are typically much smaller than 'max_block_size' but there are also cases where they are much bigger. Setting
 [query_cache_squash_partial_results](settings/settings.md#query-cache-squash-partial-results) (enabled by default) controls if result blocks

docs/en/operations/server-configuration-parameters/settings.md

@@ -1400,6 +1400,16 @@ The number of seconds that ClickHouse waits for incoming requests before closing
 <keep_alive_timeout>10</keep_alive_timeout>
 ```
 
+## max_keep_alive_requests {#max-keep-alive-requests}
+
+Maximal number of requests through a single keep-alive connection until it will be closed by ClickHouse server. Default to 10000.
+
+**Example**
+
+``` xml
+<max_keep_alive_requests>10</max_keep_alive_requests>
+```
+
 ## listen_host {#listen_host}
 
 Restriction on hosts that requests can come from. If you want the server to answer all of them, specify `::`.

docs/en/operations/settings/merge-tree-settings.md

@@ -1041,3 +1041,27 @@ Compression rates of LZ4 or ZSTD improve on average by 20-40%.
 
 This setting works best for tables with no primary key or a low-cardinality primary key, i.e. a table with only few distinct primary key values.
 High-cardinality primary keys, e.g. involving timestamp columns of type `DateTime64`, are not expected to benefit from this setting.
+
+## lightweight_mutation_projection_mode
+
+By default, lightweight delete `DELETE` does not work for tables with projections. This is because rows in a projection may be affected by a `DELETE` operation. So the default value would be `throw`.
+However, this option can change the behavior. With the value either `drop` or `rebuild`, deletes will work with projections. `drop` would delete the projection so it might be fast in the current query as projection gets deleted but slow in future queries as no projection attached.
+`rebuild` would rebuild the projection which might affect the performance of the current query, but might speedup for future queries. A good thing is that these options would only work in the part level,
+which means projections in the part that don't get touched would stay intact instead of triggering any action like drop or rebuild.
+
+Possible values:
+
+- throw, drop, rebuild
+
+Default value: throw
+
+## deduplicate_merge_projection_mode
+
+Whether to allow create projection for the table with non-classic MergeTree, that is not (Replicated, Shared) MergeTree. If allowed, what is the action when merge projections, either drop or rebuild. So classic MergeTree would ignore this setting.
+It also controls `OPTIMIZE DEDUPLICATE` as well, but has effect on all MergeTree family members. Similar to the option `lightweight_mutation_projection_mode`, it is also part level.
+
+Possible values:
+
+- throw, drop, rebuild
+
+Default value: throw

docs/en/operations/settings/settings-formats.md

@@ -171,8 +171,8 @@ If the `schema_inference_hints` is not formated properly, or if there is a typo
 
 ## schema_inference_make_columns_nullable {#schema_inference_make_columns_nullable}
 
-Controls making inferred types `Nullable` in schema inference for formats without information about nullability.
-If the setting is enabled, the inferred type will be `Nullable` only if column contains `NULL` in a sample that is parsed during schema inference.
+Controls making inferred types `Nullable` in schema inference.
+If the setting is enabled, all inferred type will be `Nullable`, if disabled, the inferred type will never be `Nullable`, if set to `auto`, the inferred type will be `Nullable` only if the column contains `NULL` in a sample that is parsed during schema inference or file metadata contains information about column nullability.
 
 Default value: `true`.
 
@@ -194,6 +194,17 @@ If enabled, ClickHouse will try to infer type `DateTime64` from string fields in
 
 Enabled by default.
 
+## input_format_try_infer_variants {#input_format_try_infer_variants}
+
+If enabled, ClickHouse will try to infer type [`Variant`](../../sql-reference/data-types/variant.md) in schema inference for text formats when there is more than one possible type for column/array elements.
+
+Possible values:
+
+- 0 — Disabled.
+- 1 — Enabled.
+
+Default value: `0`.
+
 ## date_time_input_format {#date_time_input_format}
 
 Allows choosing a parser of the text representation of date and time.

docs/en/operations/settings/settings.md

@@ -1381,7 +1381,7 @@ Default value: `2`.
 
 Close connection before returning connection to the pool.
 
-Default value: true.
+Default value: false.
 
 ## odbc_bridge_connection_pool_size {#odbc-bridge-connection-pool-size}
 
@@ -1800,6 +1800,17 @@ Possible values:
 
 Default value: `0`.
 
+## query_cache_tag {#query-cache-tag}
+
+A string which acts as a label for [query cache](../query-cache.md) entries.
+The same queries with different tags are considered different by the query cache.
+
+Possible values:
+
+- Any string
+
+Default value: `''`
+
 ## query_cache_max_size_in_bytes {#query-cache-max-size-in-bytes}
 
 The maximum amount of memory (in bytes) the current user may allocate in the [query cache](../query-cache.md). 0 means unlimited.
@@ -2844,7 +2855,7 @@ The minimum chunk size in bytes, which each thread will parse in parallel.
 
 ## merge_selecting_sleep_ms {#merge_selecting_sleep_ms}
 
-Sleep time for merge selecting when no part is selected. A lower setting triggers selecting tasks in `background_schedule_pool` frequently, which results in a large number of requests to ClickHouse Keeper in large-scale clusters.
+Minimum time to wait before trying to select parts to merge again after no parts were selected. A lower setting triggers selecting tasks in `background_schedule_pool` frequently, which results in a large number of requests to ClickHouse Keeper in large-scale clusters.
 
 Possible values:
 
@@ -2852,6 +2863,16 @@ Possible values:
 
 Default value: `5000`.
 
+## max_merge_selecting_sleep_ms
+
+Maximum time to wait before trying to select parts to merge again after no parts were selected. A lower setting triggers selecting tasks in `background_schedule_pool` frequently, which results in a large number of requests to ClickHouse Keeper in large-scale clusters.
+
+Possible values:
+
+- Any positive integer.
+
+Default value: `60000`.
+
 ## parallel_distributed_insert_select {#parallel_distributed_insert_select}
 
 Enables parallel distributed `INSERT ... SELECT` query.
@@ -5609,6 +5630,18 @@ Minimal size of block to compress in CROSS JOIN. Zero value means - disable this
 
 Default value: `1GiB`.
 
+## use_json_alias_for_old_object_type
+
+When enabled, `JSON` data type alias will be used to create an old [Object('json')](../../sql-reference/data-types/json.md) type instead of the new [JSON](../../sql-reference/data-types/newjson.md) type.
+
+Default value: `false`.
+
+## type_json_skip_duplicated_paths
+
+When enabled, ClickHouse will skip duplicated paths during parsing of [JSON](../../sql-reference/data-types/newjson.md) object. Only the value of the first occurrence of each path will be inserted.
+
+Default value: `false`
+
 ## restore_replace_external_engines_to_null
 
 For testing purposes. Replaces all external engines to Null to not initiate external connections.
@@ -5627,6 +5660,12 @@ Disable all insert and mutations (alter table update / alter table delete / alte
 
 Default value: `false`.
 
+## use_hive_partitioning
+
+When enabled, ClickHouse will detect Hive-style partitioning in path (`/name=value/`) in file-like table engines [File](../../engines/table-engines/special/file.md#hive-style-partitioning)/[S3](../../engines/table-engines/integrations/s3.md#hive-style-partitioning)/[URL](../../engines/table-engines/special/url.md#hive-style-partitioning)/[HDFS](../../engines/table-engines/integrations/hdfs.md#hive-style-partitioning)/[AzureBlobStorage](../../engines/table-engines/integrations/azureBlobStorage.md#hive-style-partitioning) and will allow to use partition columns as virtual columns in the query. These virtual columns will have the same names as in the partitioned path, but starting with `_`.
+
+Default value: `false`.
+
 ## allow_experimental_time_series_table {#allow-experimental-time-series-table}
 
 Allows creation of tables with the [TimeSeries](../../engines/table-engines/integrations/time-series.md) table engine.
@@ -5637,3 +5676,9 @@ Possible values:
 - 1 — the [TimeSeries](../../engines/table-engines/integrations/time-series.md) table engine is enabled.
 
 Default value: `0`.
+
+## create_if_not_exists
+
+Enable `IF NOT EXISTS` for `CREATE` statement by default. If either this setting or `IF NOT EXISTS` is specified and a table with the provided name already exists, no exception will be thrown.
+
+Default value: `false`.

docs/en/operations/system-tables/projections.md

@@ -0,0 +1,41 @@
+---
+slug: /en/operations/system-tables/projections
+---
+# projections
+
+Contains information about existing projections in all the tables.
+
+Columns:
+
+- `database` ([String](../../sql-reference/data-types/string.md)) — Database name.
+- `table` ([String](../../sql-reference/data-types/string.md)) — Table name.
+- `name` ([String](../../sql-reference/data-types/string.md)) — Projection name.
+- `type` ([Enum](../../sql-reference/data-types/enum.md)) — Projection type ('Normal' = 0, 'Aggregate' = 1).
+- `sorting_key` ([Array(String)](../../sql-reference/data-types/array.md)) — Projection sorting key.
+- `query` ([String](../../sql-reference/data-types/string.md)) — Projection query.
+
+**Example**
+
+```sql
+SELECT * FROM system.projections LIMIT 2 FORMAT Vertical;
+```
+
+```text
+Row 1:
+──────
+database:    default
+table:       landing
+name:        improved_sorting_key
+type:        Normal
+sorting_key: ['user_id','date']
+query:       SELECT * ORDER BY user_id, date
+
+Row 2:
+──────
+database:    default
+table:       landing
+name:        agg_no_key
+type:        Aggregate
+sorting_key: []
+query:       SELECT count()
+```

docs/en/operations/system-tables/query_cache.md

@@ -9,6 +9,7 @@ Columns:
 
 - `query` ([String](../../sql-reference/data-types/string.md)) — Query string.
 - `result_size` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — Size of the query cache entry.
+- `tag` ([LowCardinality(String)](../../sql-reference/data-types/lowcardinality.md)) — Tag of the query cache entry.
 - `stale` ([UInt8](../../sql-reference/data-types/int-uint.md)) — If the query cache entry is stale.
 - `shared` ([UInt8](../../sql-reference/data-types/int-uint.md)) — If the query cache entry is shared between multiple users.
 - `compressed` ([UInt8](../../sql-reference/data-types/int-uint.md)) — If the query cache entry is compressed.
@@ -26,6 +27,7 @@ Row 1:
 ──────
 query:       SELECT 1 SETTINGS use_query_cache = 1
 result_size: 128
+tag:
 stale:       0
 shared:      0
 compressed:  1

docs/en/operations/system-tables/view_refreshes.md

@@ -17,7 +17,8 @@ Columns:
 - `duration_ms` ([UInt64](../../sql-reference/data-types/int-uint.md)) — How long the last refresh attempt took.
 - `next_refresh_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — Time at which the next refresh is scheduled to start.
 - `remaining_dependencies` ([Array(String)](../../sql-reference/data-types/array.md)) — If the view has [refresh dependencies](../../sql-reference/statements/create/view.md#refresh-dependencies), this array contains the subset of those dependencies that are not satisfied for the current refresh yet. If `status = 'WaitingForDependencies'`, a refresh is ready to start as soon as these dependencies are fulfilled.
-- `exception` ([String](../../sql-reference/data-types/string.md)) — if `last_refresh_result = 'Exception'`, i.e. the last refresh attempt failed, this column contains the corresponding error message and stack trace.
+- `exception` ([String](../../sql-reference/data-types/string.md)) — if `last_refresh_result = 'Error'`, i.e. the last refresh attempt failed, this column contains the corresponding error message and stack trace.
+- `retry` ([UInt64](../../sql-reference/data-types/int-uint.md)) — If nonzero, the current or next refresh is a retry (see `refresh_retries` refresh setting), and `retry` is the 1-based index of that retry.
 - `refresh_count` ([UInt64](../../sql-reference/data-types/int-uint.md)) — Number of successful refreshes since last server restart or table creation.
 - `progress` ([Float64](../../sql-reference/data-types/float.md)) — Progress of the current refresh, between 0 and 1.
 - `read_rows` ([UInt64](../../sql-reference/data-types/int-uint.md)) — Number of rows read by the current refresh so far.

docs/en/sql-reference/data-types/data-types-binary-encoding.md

@@ -12,57 +12,59 @@ This specification describes the binary format that can be used for binary encod
 The table below describes how each data type is represented in binary format. Each data type encoding consist of 1 byte that indicates the type and some optional additional information.
 `var_uint` in the binary encoding means that the size is encoded using Variable-Length Quantity compression.
 
-| ClickHouse data type                                                                 | Binary encoding                                                                                                                                                                                                                                                                                                        |
-|--------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `Nothing`                                                                            | `0x00`                                                                                                                                                                                                                                                                                                                 |
-| `UInt8`                                                                              | `0x01`                                                                                                                                                                                                                                                                                                                 |
-| `UInt16`                                                                             | `0x02`                                                                                                                                                                                                                                                                                                                 |
-| `UInt32`                                                                             | `0x03`                                                                                                                                                                                                                                                                                                                 |
-| `UInt64`                                                                             | `0x04`                                                                                                                                                                                                                                                                                                                 |
-| `UInt128`                                                                            | `0x05`                                                                                                                                                                                                                                                                                                                 |
-| `UInt256`                                                                            | `0x06`                                                                                                                                                                                                                                                                                                                 |
-| `Int8`                                                                               | `0x07`                                                                                                                                                                                                                                                                                                                 |
-| `Int16`                                                                              | `0x08`                                                                                                                                                                                                                                                                                                                 |
-| `Int32`                                                                              | `0x09`                                                                                                                                                                                                                                                                                                                 |
-| `Int64`                                                                              | `0x0A`                                                                                                                                                                                                                                                                                                                 |
-| `Int128`                                                                             | `0x0B`                                                                                                                                                                                                                                                                                                                 |
-| `Int256`                                                                             | `0x0C`                                                                                                                                                                                                                                                                                                                 |
-| `Float32`                                                                            | `0x0D`                                                                                                                                                                                                                                                                                                                 |
-| `Float64`                                                                            | `0x0E`                                                                                                                                                                                                                                                                                                                 |
-| `Date`                                                                               | `0x0F`                                                                                                                                                                                                                                                                                                                 |
-| `Date32`                                                                             | `0x10`                                                                                                                                                                                                                                                                                                                 |
-| `DateTime`                                                                           | `0x11`                                                                                                                                                                                                                                                                                                                 |
-| `DateTime(time_zone)`                                                                | `0x12<var_uint_time_zone_name_size><time_zone_name_data>`                                                                                                                                                                                                                                                              |
-| `DateTime64(P)`                                                                      | `0x13<uint8_precision>`                                                                                                                                                                                                                                                                                                |
-| `DateTime64(P, time_zone)`                                                           | `0x14<uint8_precision><var_uint_time_zone_name_size><time_zone_name_data>`                                                                                                                                                                                                                                             |
-| `String`                                                                             | `0x15`                                                                                                                                                                                                                                                                                                                 |
-| `FixedString(N)`                                                                     | `0x16<var_uint_size>`                                                                                                                                                                                                                                                                                                  |
-| `Enum8`                                                                              | `0x17<var_uint_number_of_elements><var_uint_name_size_1><name_data_1><int8_value_1>...<var_uint_name_size_N><name_data_N><int8_value_N>`                                                                                                                                                                               |
-| `Enum16`                                                                             | `0x18<var_uint_number_of_elements><var_uint_name_size_1><name_data_1><int16_little_endian_value_1>...><var_uint_name_size_N><name_data_N><int16_little_endian_value_N>`                                                                                                                                                |
-| `Decimal32(P, S)`                                                                    | `0x19<uint8_precision><uint8_scale>`                                                                                                                                                                                                                                                                                   |
-| `Decimal64(P, S)`                                                                    | `0x1A<uint8_precision><uint8_scale>`                                                                                                                                                                                                                                                                                   |
-| `Decimal128(P, S)`                                                                   | `0x1B<uint8_precision><uint8_scale>`                                                                                                                                                                                                                                                                                   |
-| `Decimal256(P, S)`                                                                   | `0x1C<uint8_precision><uint8_scale>`                                                                                                                                                                                                                                                                                   |
-| `UUID`                                                                               | `0x1D`                                                                                                                                                                                                                                                                                                                 |
-| `Array(T)`                                                                           | `0x1E<nested_type_encoding>`                                                                                                                                                                                                                                                                                           |
-| `Tuple(T1, ..., TN)`                                                                 | `0x1F<var_uint_number_of_elements><nested_type_encoding_1>...<nested_type_encoding_N>`                                                                                                                                                                                                                                 |
-| `Tuple(name1 T1, ..., nameN TN)`                                                     | `0x20<var_uint_number_of_elements><var_uint_name_size_1><name_data_1><nested_type_encoding_1>...<var_uint_name_size_N><name_data_N><nested_type_encoding_N>`                                                                                                                                                           |
-| `Set`                                                                                | `0x21`                                                                                                                                                                                                                                                                                                                 |
-| `Interval`                                                                           | `0x22<interval_kind>` (see [interval kind binary encoding](#interval-kind-binary-encoding))                                                                                                                                                                                                                            |
-| `Nullable(T)`                                                                        | `0x23<nested_type_encoding>`                                                                                                                                                                                                                                                                                           |
-| `Function`                                                                           | `0x24<var_uint_number_of_arguments><argument_type_encoding_1>...<argument_type_encoding_N><return_type_encoding>`                                                                                                                                                                                                      |
-| `AggregateFunction(function_name(param_1, ..., param_N), arg_T1, ..., arg_TN)`       | `0x25<var_uint_version><var_uint_function_name_size><function_name_data><var_uint_number_of_parameters><param_1>...<param_N><var_uint_number_of_arguments><argument_type_encoding_1>...<argument_type_encoding_N>` (see [aggregate function parameter binary encoding](#aggregate-function-parameter-binary-encoding)) |
-| `LowCardinality(T)`                                                                  | `0x26<nested_type_encoding>`                                                                                                                                                                                                                                                                                           |
-| `Map(K, V)`                                                                          | `0x27<key_type_encoding><value_type_encoding>`                                                                                                                                                                                                                                                                         |
-| `IPv4`                                                                               | `0x28`                                                                                                                                                                                                                                                                                                                 |
-| `IPv6`                                                                               | `0x29`                                                                                                                                                                                                                                                                                                                 |
-| `Variant(T1, ..., TN)`                                                               | `0x2A<var_uint_number_of_variants><variant_type_encoding_1>...<variant_type_encoding_N>`                                                                                                                                                                                                                               |
-| `Dynamic(max_types=N)`                                                               | `0x2B<uint8_max_types>`                                                                                                                                                                                                                                                                                                |
-| `Custom type` (`Ring`, `Polygon`, etc)                                               | `0x2C<var_uint_type_name_size><type_name_data>`                                                                                                                                                                                                                                                                        |
-| `Bool`                                                                               | `0x2D`                                                                                                                                                                                                                                                                                                                 |
-| `SimpleAggregateFunction(function_name(param_1, ..., param_N), arg_T1, ..., arg_TN)` | `0x2E<var_uint_function_name_size><function_name_data><var_uint_number_of_parameters><param_1>...<param_N><var_uint_number_of_arguments><argument_type_encoding_1>...<argument_type_encoding_N>` (see [aggregate function parameter binary encoding](#aggregate-function-parameter-binary-encoding))                   |
-| `Nested(name1 T1, ..., nameN TN)`                                                    | `0x2F<var_uint_number_of_elements><var_uint_name_size_1><name_data_1><nested_type_encoding_1>...<var_uint_name_size_N><name_data_N><nested_type_encoding_N>`                                                                                                                                                           |
+| ClickHouse data type                                                                                      | Binary encoding                                                                                                                                                                                                                                                                                                                                                            |
+|-----------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `Nothing`                                                                                                 | `0x00`                                                                                                                                                                                                                                                                                                                                                                     |
+| `UInt8`                                                                                                   | `0x01`                                                                                                                                                                                                                                                                                                                                                                     |
+| `UInt16`                                                                                                  | `0x02`                                                                                                                                                                                                                                                                                                                                                                     |
+| `UInt32`                                                                                                  | `0x03`                                                                                                                                                                                                                                                                                                                                                                     |
+| `UInt64`                                                                                                  | `0x04`                                                                                                                                                                                                                                                                                                                                                                     |
+| `UInt128`                                                                                                 | `0x05`                                                                                                                                                                                                                                                                                                                                                                     |
+| `UInt256`                                                                                                 | `0x06`                                                                                                                                                                                                                                                                                                                                                                     |
+| `Int8`                                                                                                    | `0x07`                                                                                                                                                                                                                                                                                                                                                                     |
+| `Int16`                                                                                                   | `0x08`                                                                                                                                                                                                                                                                                                                                                                     |
+| `Int32`                                                                                                   | `0x09`                                                                                                                                                                                                                                                                                                                                                                     |
+| `Int64`                                                                                                   | `0x0A`                                                                                                                                                                                                                                                                                                                                                                     |
+| `Int128`                                                                                                  | `0x0B`                                                                                                                                                                                                                                                                                                                                                                     |
+| `Int256`                                                                                                  | `0x0C`                                                                                                                                                                                                                                                                                                                                                                     |
+| `Float32`                                                                                                 | `0x0D`                                                                                                                                                                                                                                                                                                                                                                     |
+| `Float64`                                                                                                 | `0x0E`                                                                                                                                                                                                                                                                                                                                                                     |
+| `Date`                                                                                                    | `0x0F`                                                                                                                                                                                                                                                                                                                                                                     |
+| `Date32`                                                                                                  | `0x10`                                                                                                                                                                                                                                                                                                                                                                     |
+| `DateTime`                                                                                                | `0x11`                                                                                                                                                                                                                                                                                                                                                                     |
+| `DateTime(time_zone)`                                                                                     | `0x12<var_uint_time_zone_name_size><time_zone_name_data>`                                                                                                                                                                                                                                                                                                                  |
+| `DateTime64(P)`                                                                                           | `0x13<uint8_precision>`                                                                                                                                                                                                                                                                                                                                                    |
+| `DateTime64(P, time_zone)`                                                                                | `0x14<uint8_precision><var_uint_time_zone_name_size><time_zone_name_data>`                                                                                                                                                                                                                                                                                                 |
+| `String`                                                                                                  | `0x15`                                                                                                                                                                                                                                                                                                                                                                     |
+| `FixedString(N)`                                                                                          | `0x16<var_uint_size>`                                                                                                                                                                                                                                                                                                                                                      |
+| `Enum8`                                                                                                   | `0x17<var_uint_number_of_elements><var_uint_name_size_1><name_data_1><int8_value_1>...<var_uint_name_size_N><name_data_N><int8_value_N>`                                                                                                                                                                                                                                   |
+| `Enum16`                                                                                                  | `0x18<var_uint_number_of_elements><var_uint_name_size_1><name_data_1><int16_little_endian_value_1>...><var_uint_name_size_N><name_data_N><int16_little_endian_value_N>`                                                                                                                                                                                                    |
+| `Decimal32(P, S)`                                                                                         | `0x19<uint8_precision><uint8_scale>`                                                                                                                                                                                                                                                                                                                                       |
+| `Decimal64(P, S)`                                                                                         | `0x1A<uint8_precision><uint8_scale>`                                                                                                                                                                                                                                                                                                                                       |
+| `Decimal128(P, S)`                                                                                        | `0x1B<uint8_precision><uint8_scale>`                                                                                                                                                                                                                                                                                                                                       |
+| `Decimal256(P, S)`                                                                                        | `0x1C<uint8_precision><uint8_scale>`                                                                                                                                                                                                                                                                                                                                       |
+| `UUID`                                                                                                    | `0x1D`                                                                                                                                                                                                                                                                                                                                                                     |
+| `Array(T)`                                                                                                | `0x1E<nested_type_encoding>`                                                                                                                                                                                                                                                                                                                                               |
+| `Tuple(T1, ..., TN)`                                                                                      | `0x1F<var_uint_number_of_elements><nested_type_encoding_1>...<nested_type_encoding_N>`                                                                                                                                                                                                                                                                                     |
+| `Tuple(name1 T1, ..., nameN TN)`                                                                          | `0x20<var_uint_number_of_elements><var_uint_name_size_1><name_data_1><nested_type_encoding_1>...<var_uint_name_size_N><name_data_N><nested_type_encoding_N>`                                                                                                                                                                                                               |
+| `Set`                                                                                                     | `0x21`                                                                                                                                                                                                                                                                                                                                                                     |
+| `Interval`                                                                                                | `0x22<interval_kind>` (see [interval kind binary encoding](#interval-kind-binary-encoding))                                                                                                                                                                                                                                                                                |
+| `Nullable(T)`                                                                                             | `0x23<nested_type_encoding>`                                                                                                                                                                                                                                                                                                                                               |
+| `Function`                                                                                                | `0x24<var_uint_number_of_arguments><argument_type_encoding_1>...<argument_type_encoding_N><return_type_encoding>`                                                                                                                                                                                                                                                          |
+| `AggregateFunction(function_name(param_1, ..., param_N), arg_T1, ..., arg_TN)`                            | `0x25<var_uint_version><var_uint_function_name_size><function_name_data><var_uint_number_of_parameters><param_1>...<param_N><var_uint_number_of_arguments><argument_type_encoding_1>...<argument_type_encoding_N>` (see [aggregate function parameter binary encoding](#aggregate-function-parameter-binary-encoding))                                                     |
+| `LowCardinality(T)`                                                                                       | `0x26<nested_type_encoding>`                                                                                                                                                                                                                                                                                                                                               |
+| `Map(K, V)`                                                                                               | `0x27<key_type_encoding><value_type_encoding>`                                                                                                                                                                                                                                                                                                                             |
+| `IPv4`                                                                                                    | `0x28`                                                                                                                                                                                                                                                                                                                                                                     |
+| `IPv6`                                                                                                    | `0x29`                                                                                                                                                                                                                                                                                                                                                                     |
+| `Variant(T1, ..., TN)`                                                                                    | `0x2A<var_uint_number_of_variants><variant_type_encoding_1>...<variant_type_encoding_N>`                                                                                                                                                                                                                                                                                   |
+| `Dynamic(max_types=N)`                                                                                    | `0x2B<uint8_max_types>`                                                                                                                                                                                                                                                                                                                                                    |
+| `Custom type` (`Ring`, `Polygon`, etc)                                                                    | `0x2C<var_uint_type_name_size><type_name_data>`                                                                                                                                                                                                                                                                                                                            |
+| `Bool`                                                                                                    | `0x2D`                                                                                                                                                                                                                                                                                                                                                                     |
+| `SimpleAggregateFunction(function_name(param_1, ..., param_N), arg_T1, ..., arg_TN)`                      | `0x2E<var_uint_function_name_size><function_name_data><var_uint_number_of_parameters><param_1>...<param_N><var_uint_number_of_arguments><argument_type_encoding_1>...<argument_type_encoding_N>` (see [aggregate function parameter binary encoding](#aggregate-function-parameter-binary-encoding))                                                                       |
+| `Nested(name1 T1, ..., nameN TN)`                                                                         | `0x2F<var_uint_number_of_elements><var_uint_name_size_1><name_data_1><nested_type_encoding_1>...<var_uint_name_size_N><name_data_N><nested_type_encoding_N>`                                                                                                                                                                                                               |
+| `JSON(max_dynamic_paths=N, max_dynamic_types=M, path Type, SKIP skip_path, SKIP REGEXP skip_path_regexp)` | `0x30<uint8_serialization_version><var_int_max_dynamic_paths><uint8_max_dynamic_types><var_uint_number_of_typed_paths><var_uint_path_name_size_1><path_name_data_1><encoded_type_1>...<var_uint_number_of_skip_paths><var_uint_skip_path_size_1><skip_path_data_1>...<var_uint_number_of_skip_path_regexps><var_uint_skip_path_regexp_size_1><skip_path_data_regexp_1>...` |
 
+For type `JSON` byte `uint8_serialization_version` indicates the version of the serialization. Right now the version is always 0 but can change in future if new arguments will be introduced for `JSON` type.
 
 ### Interval kind binary encoding
 

docs/en/sql-reference/data-types/dynamic.md

@@ -14,7 +14,7 @@ To declare a column of `Dynamic` type, use the following syntax:
 <column_name> Dynamic(max_types=N)
 ```
 
-Where `N` is an optional parameter between `1` and `255` indicating how many different data types can be stored inside a column with type `Dynamic` across single block of data that is stored separately (for example across single data part for MergeTree table). If this limit is exceeded, all new types will be converted to type `String`. Default value of `max_types` is `32`.
+Where `N` is an optional parameter between `0` and `254` indicating how many different data types can be stored as separate subcolumns inside a column with type `Dynamic` across single block of data that is stored separately (for example across single data part for MergeTree table). If this limit is exceeded, all values with new types will be stored together in a special shared data structure in binary form. Default value of `max_types` is `32`.
 
 :::note
 The Dynamic data type is an experimental feature. To use it, set `allow_experimental_dynamic_type = 1`.
@@ -224,41 +224,43 @@ SELECT d::Dynamic(max_types=5) as d2, dynamicType(d2) FROM test;
 └───────┴────────────────┘
 ```
 
-If `K < N`, then the values with the rarest types are converted to `String`:
+If `K < N`, then the values with the rarest types will be inserted into a single special subcolumn, but still will be accessible:
 ```text
 CREATE TABLE test (d Dynamic(max_types=4)) ENGINE = Memory;
 INSERT INTO test VALUES (NULL), (42), (43), ('42.42'), (true), ([1, 2, 3]);
-SELECT d, dynamicType(d), d::Dynamic(max_types=2) as d2, dynamicType(d2) FROM test;
+SELECT d, dynamicType(d), d::Dynamic(max_types=2) as d2, dynamicType(d2), isDynamicElementInSharedData(d2) FROM test;
 ```
 
 ```text
-┌─d───────┬─dynamicType(d)─┬─d2──────┬─dynamicType(d2)─┐
-│ ᴺᵁᴸᴸ    │ None           │ ᴺᵁᴸᴸ    │ None            │
-│ 42      │ Int64          │ 42      │ Int64           │
-│ 43      │ Int64          │ 43      │ Int64           │
-│ 42.42   │ String         │ 42.42   │ String          │
-│ true    │ Bool           │ true    │ String          │
-│ [1,2,3] │ Array(Int64)   │ [1,2,3] │ String          │
-└─────────┴────────────────┴─────────┴─────────────────┘
+┌─d───────┬─dynamicType(d)─┬─d2──────┬─dynamicType(d2)─┬─isDynamicElementInSharedData(d2)─┐
+│ ᴺᵁᴸᴸ    │ None           │ ᴺᵁᴸᴸ    │ None            │ false                            │
+│ 42      │ Int64          │ 42      │ Int64           │ false                            │
+│ 43      │ Int64          │ 43      │ Int64           │ false                            │
+│ 42.42   │ String         │ 42.42   │ String          │ false                            │
+│ true    │ Bool           │ true    │ Bool            │ true                             │
+│ [1,2,3] │ Array(Int64)   │ [1,2,3] │ Array(Int64)    │ true                             │
+└─────────┴────────────────┴─────────┴─────────────────┴──────────────────────────────────┘
 ```
 
-If `K=1`, all types are converted to `String`:
+Functions `isDynamicElementInSharedData` returns `true` for rows that are stored in a special shared data structure inside `Dynamic` and as we can see, resulting column contains only 2 types that are not stored in shared data structure.
+
+If `K=0`, all types will be inserted into single special subcolumn:
 
 ```text
 CREATE TABLE test (d Dynamic(max_types=4)) ENGINE = Memory;
 INSERT INTO test VALUES (NULL), (42), (43), ('42.42'), (true), ([1, 2, 3]);
-SELECT d, dynamicType(d), d::Dynamic(max_types=1) as d2, dynamicType(d2) FROM test;
+SELECT d, dynamicType(d), d::Dynamic(max_types=0) as d2, dynamicType(d2), isDynamicElementInSharedData(d2) FROM test;
 ```
 
 ```text
-┌─d───────┬─dynamicType(d)─┬─d2──────┬─dynamicType(d2)─┐
-│ ᴺᵁᴸᴸ    │ None           │ ᴺᵁᴸᴸ    │ None            │
-│ 42      │ Int64          │ 42      │ String          │
-│ 43      │ Int64          │ 43      │ String          │
-│ 42.42   │ String         │ 42.42   │ String          │
-│ true    │ Bool           │ true    │ String          │
-│ [1,2,3] │ Array(Int64)   │ [1,2,3] │ String          │
-└─────────┴────────────────┴─────────┴─────────────────┘
+┌─d───────┬─dynamicType(d)─┬─d2──────┬─dynamicType(d2)─┬─isDynamicElementInSharedData(d2)─┐
+│ ᴺᵁᴸᴸ    │ None           │ ᴺᵁᴸᴸ    │ None            │ false                            │
+│ 42      │ Int64          │ 42      │ Int64           │ true                             │
+│ 43      │ Int64          │ 43      │ Int64           │ true                             │
+│ 42.42   │ String         │ 42.42   │ String          │ true                             │
+│ true    │ Bool           │ true    │ Bool            │ true                             │
+│ [1,2,3] │ Array(Int64)   │ [1,2,3] │ Array(Int64)    │ true                             │
+└─────────┴────────────────┴─────────┴─────────────────┴──────────────────────────────────┘
 ```
 
 ## Reading Dynamic type from the data
@@ -411,17 +413,17 @@ SELECT d, dynamicType(d) FROM test ORDER by d;
 
 ## Reaching the limit in number of different data types stored inside Dynamic
 
-`Dynamic` data type can store only limited number of different data types inside. By default, this limit is 32, but you can change it in type declaration using syntax `Dynamic(max_types=N)` where N is between 1 and 255 (due to implementation details, it's impossible to have more than 255 different data types inside Dynamic).
-When the limit is reached, all new data types inserted to `Dynamic` column will be casted to `String` and stored as `String` values.
+`Dynamic` data type can store only limited number of different data types as separate subcolumns. By default, this limit is 32, but you can change it in type declaration using syntax `Dynamic(max_types=N)` where N is between 0 and 254 (due to implementation details, it's impossible to have more than 254 different data types that can be stored as separate subcolumns inside Dynamic).
+When the limit is reached, all new data types inserted to `Dynamic` column will be inserted into a single shared data structure that stores values with different data types in binary form.
 
 Let's see what happens when the limit is reached in different scenarios.
 
 ### Reaching the limit during data parsing
 
-During parsing of `Dynamic` values from the data, when the limit is reached for current block of data, all new values will be inserted as `String` values:
+During parsing of `Dynamic` values from the data, when the limit is reached for current block of data, all new values will be inserted into shared data structure:
 
 ```sql
-SELECT d, dynamicType(d) FROM format(JSONEachRow, 'd Dynamic(max_types=3)', '
+SELECT d, dynamicType(d), isDynamicElementInSharedData(d) FROM format(JSONEachRow, 'd Dynamic(max_types=3)', '
 {"d" : 42}
 {"d" : [1, 2, 3]}
 {"d" : "Hello, World!"}
@@ -432,22 +434,22 @@ SELECT d, dynamicType(d) FROM format(JSONEachRow, 'd Dynamic(max_types=3)', '
 ```
 
 ```text
-┌─d──────────────────────────┬─dynamicType(d)─┐
-│ 42                         │ Int64          │
-│ [1,2,3]                    │ Array(Int64)   │
-│ Hello, World!              │ String         │
-│ 2020-01-01                 │ String         │
-│ ["str1", "str2", "str3"]   │ String         │
-│ {"a" : 1, "b" : [1, 2, 3]} │ String         │
-└────────────────────────────┴────────────────┘
+┌─d──────────────────────┬─dynamicType(d)─────────────────┬─isDynamicElementInSharedData(d)─┐
+│ 42                     │ Int64                          │ false                           │
+│ [1,2,3]                │ Array(Int64)                   │ false                           │
+│ Hello, World!          │ String                         │ false                           │
+│ 2020-01-01             │ Date                           │ true                            │
+│ ['str1','str2','str3'] │ Array(String)                  │ true                            │
+│ (1,[1,2,3])            │ Tuple(a Int64, b Array(Int64)) │ true                            │
+└────────────────────────┴────────────────────────────────┴─────────────────────────────────┘
 ```
 
-As we can see, after inserting 3 different data types `Int64`, `Array(Int64)` and `String` all new types were converted to `String`.
+As we can see, after inserting 3 different data types `Int64`, `Array(Int64)` and `String` all new types were inserted into special shared data structure.
 
 ### During merges of data parts in MergeTree table engines
 
-During merge of several data parts in MergeTree table the `Dynamic` column in the resulting data part can reach the limit of different data types inside and won't be able to store all types from source parts.
-In this case ClickHouse chooses what types will remain after merge and what types will be casted to `String`.  In most cases ClickHouse tries to keep the most frequent types and cast the rarest types to `String`, but it depends on the implementation.
+During merge of several data parts in MergeTree table the `Dynamic` column in the resulting data part can reach the limit of different data types that can be stored in separate subcolumns inside and won't be able to store all types as subcolumns from source parts.
+In this case ClickHouse chooses what types will remain as separate subcolumns after merge and what types will be inserted into shared data structure. In most cases ClickHouse tries to keep the most frequent types and store the rarest types in shared data structure, but it depends on the implementation.
 
 Let's see an example of such merge. First, let's create a table with `Dynamic` column, set the limit of different data types to `3` and insert values with `5` different types:
 
@@ -463,17 +465,17 @@ INSERT INTO test SELECT number, 'str_' || toString(number) FROM numbers(1);
 
 Each insert will create a separate data pert with `Dynamic` column containing single type:
 ```sql
-SELECT count(), dynamicType(d), _part FROM test GROUP BY _part, dynamicType(d) ORDER BY _part;
+SELECT count(), dynamicType(d), isDynamicElementInSharedData(d), _part FROM test GROUP BY _part, dynamicType(d), isDynamicElementInSharedData(d) ORDER BY _part, count();
 ```
 
 ```text
-┌─count()─┬─dynamicType(d)──────┬─_part─────┐
-│       5 │ UInt64              │ all_1_1_0 │
-│       4 │ Array(UInt64)       │ all_2_2_0 │
-│       3 │ Date                │ all_3_3_0 │
-│       2 │ Map(UInt64, UInt64) │ all_4_4_0 │
-│       1 │ String              │ all_5_5_0 │
-└─────────┴─────────────────────┴───────────┘
+┌─count()─┬─dynamicType(d)──────┬─isDynamicElementInSharedData(d)─┬─_part─────┐
+│       5 │ UInt64              │ false                           │ all_1_1_0 │
+│       4 │ Array(UInt64)       │ false                           │ all_2_2_0 │
+│       3 │ Date                │ false                           │ all_3_3_0 │
+│       2 │ Map(UInt64, UInt64) │ false                           │ all_4_4_0 │
+│       1 │ String              │ false                           │ all_5_5_0 │
+└─────────┴─────────────────────┴─────────────────────────────────┴───────────┘
 ```
 
 Now, let's merge all parts into one and see what will happen:
@@ -481,18 +483,20 @@ Now, let's merge all parts into one and see what will happen:
 ```sql
 SYSTEM START MERGES test;
 OPTIMIZE TABLE test FINAL;
-SELECT count(), dynamicType(d), _part FROM test GROUP BY _part, dynamicType(d) ORDER BY _part;
+SELECT count(), dynamicType(d), isDynamicElementInSharedData(d), _part FROM test GROUP BY _part, dynamicType(d), isDynamicElementInSharedData(d) ORDER BY _part, count() desc;
 ```
 
 ```text
-┌─count()─┬─dynamicType(d)─┬─_part─────┐
-│       5 │ UInt64         │ all_1_5_2 │
-│       6 │ String         │ all_1_5_2 │
-│       4 │ Array(UInt64)  │ all_1_5_2 │
-└─────────┴────────────────┴───────────┘
+┌─count()─┬─dynamicType(d)──────┬─isDynamicElementInSharedData(d)─┬─_part─────┐
+│       5 │ UInt64              │ false                           │ all_1_5_2 │
+│       4 │ Array(UInt64)       │ false                           │ all_1_5_2 │
+│       3 │ Date                │ false                           │ all_1_5_2 │
+│       2 │ Map(UInt64, UInt64) │ true                            │ all_1_5_2 │
+│       1 │ String              │ true                            │ all_1_5_2 │
+└─────────┴─────────────────────┴─────────────────────────────────┴───────────┘
 ```
 
-As we can see, ClickHouse kept the most frequent types `UInt64` and `Array(UInt64)` and casted all other types to `String`.
+As we can see, ClickHouse kept the most frequent types `UInt64` and `Array(UInt64)` as subcolumns and inserted all other types into shared data.
 
 ## JSONExtract functions with Dynamic
 
@@ -509,22 +513,23 @@ SELECT JSONExtract('{"a" : [1, 2, 3]}', 'a', 'Dynamic') AS dynamic, dynamicType(
 ```
 
 ```sql
-SELECT JSONExtract('{"obj" : {"a" : 42, "b" : "Hello", "c" : [1,2,3]}}', 'obj', 'Map(String, Variant(UInt32, String, Array(UInt32)))') AS map_of_dynamics, mapApply((k, v) -> (k, variantType(v)), map_of_dynamics) AS map_of_dynamic_types```
+SELECT JSONExtract('{"obj" : {"a" : 42, "b" : "Hello", "c" : [1,2,3]}}', 'obj', 'Map(String, Dynamic)') AS map_of_dynamics, mapApply((k, v) -> (k, dynamicType(v)), map_of_dynamics) AS map_of_dynamic_types
+```
 
 ```text
-┌─map_of_dynamics──────────────────┬─map_of_dynamic_types────────────────────────────┐
-│ {'a':42,'b':'Hello','c':[1,2,3]} │ {'a':'UInt32','b':'String','c':'Array(UInt32)'} │
-└──────────────────────────────────┴─────────────────────────────────────────────────┘
+┌─map_of_dynamics──────────────────┬─map_of_dynamic_types────────────────────────────────────┐
+│ {'a':42,'b':'Hello','c':[1,2,3]} │ {'a':'Int64','b':'String','c':'Array(Nullable(Int64))'} │
+└──────────────────────────────────┴─────────────────────────────────────────────────────────┘
 ```
 
 ```sql
-SELECT JSONExtractKeysAndValues('{"a" : 42, "b" : "Hello", "c" : [1,2,3]}', 'Variant(UInt32, String, Array(UInt32))') AS dynamics, arrayMap(x -> (x.1, variantType(x.2)), dynamics) AS dynamic_types```
+SELECT JSONExtractKeysAndValues('{"a" : 42, "b" : "Hello", "c" : [1,2,3]}', 'Dynamic') AS dynamics, arrayMap(x -> (x.1, dynamicType(x.2)), dynamics) AS dynamic_types```
 ```
 
 ```text
-┌─dynamics───────────────────────────────┬─dynamic_types─────────────────────────────────────────┐
-│ [('a',42),('b','Hello'),('c',[1,2,3])] │ [('a','UInt32'),('b','String'),('c','Array(UInt32)')] │
-└────────────────────────────────────────┴───────────────────────────────────────────────────────┘
+┌─dynamics───────────────────────────────┬─dynamic_types─────────────────────────────────────────────────┐
+│ [('a',42),('b','Hello'),('c',[1,2,3])] │ [('a','Int64'),('b','String'),('c','Array(Nullable(Int64))')] │
+└────────────────────────────────────────┴───────────────────────────────────────────────────────────────┘
 ```
 
 ### Binary output format

docs/en/sql-reference/data-types/index.md

@@ -19,7 +19,8 @@ ClickHouse data types include:
 - **Boolean**: ClickHouse has a [`Boolean` type](./boolean.md)
 - **Strings**: [`String`](./string.md) and [`FixedString`](./fixedstring.md)
 - **Dates**: use [`Date`](./date.md) and [`Date32`](./date32.md) for days, and [`DateTime`](./datetime.md) and [`DateTime64`](./datetime64.md) for instances in time
-- **JSON**: the [`JSON` object](./json.md) stores a JSON document in a single column
+- **Object**: the [`Object`](./json.md) stores a JSON document in a single column (deprecated)
+- **JSON**: the [`JSON` object](./newjson.md) stores a JSON document in a single column
 - **UUID**: a performant option for storing [`UUID` values](./uuid.md)
 - **Low cardinality types**: use an [`Enum`](./enum.md) when you have a handful of unique values, or use [`LowCardinality`](./lowcardinality.md) when you have up to 10,000 unique values of a column
 - **Arrays**: any column can be defined as an [`Array` of values](./array.md)

docs/en/sql-reference/data-types/json.md

@@ -13,7 +13,7 @@ keywords: [object, data type]
 
 Stores JavaScript Object Notation (JSON) documents in a single column.
 
-`JSON` is an alias for `Object('json')`.
+`JSON` can be used as an alias to `Object('json')` when setting [use_json_alias_for_old_object_type](../../operations/settings/settings.md#usejsonaliasforoldobjecttype) is enabled.
 
 ## Example
 
@@ -79,5 +79,5 @@ SELECT * FROM json FORMAT JSONEachRow
 
 ## Related Content
 
-- [Using JSON in ClickHouse](/docs/en/integrations/data-formats/json)
+- [Using JSON in ClickHouse](/en/integrations/data-formats/json/overview)
 - [Getting Data Into ClickHouse - Part 2 - A JSON detour](https://clickhouse.com/blog/getting-data-into-clickhouse-part-2-json)

docs/en/sql-reference/data-types/newjson.md

@@ -0,0 +1,516 @@
+---
+slug: /en/sql-reference/data-types/newjson
+sidebar_position: 63
+sidebar_label: JSON
+keywords: [json, data type]
+---
+
+# JSON
+
+Stores JavaScript Object Notation (JSON) documents in a single column.
+
+:::note
+This feature is experimental and is not production-ready. If you need to work with JSON documents, consider using [this guide](/docs/en/integrations/data-formats/json/overview) instead.
+If you want to use JSON type, set `allow_experimental_json_type = 1`. 
+:::
+
+To declare a column of `JSON` type, use the following syntax:
+
+``` sql
+<column_name> JSON(max_dynamic_paths=N, max_dynamic_types=M, some.path TypeName, SKIP path.to.skip, SKIP REGEXP 'paths_regexp')
+```
+Where:
+- `max_dynamic_paths` is an optional parameter indicating how many paths can be stored separately as subcolumns across single block of data that is stored separately (for example across single data part for MergeTree table). If this limit is exceeded, all other paths will be stored together in a single structure. Default value of `max_dynamic_paths` is `1024`.
+- `max_dynamic_types` is an optional parameter between `1` and `255` indicating how many different data types can be stored inside a single path column with type `Dynamic` across single block of data that is stored separately (for example across single data part for MergeTree table). If this limit is exceeded, all new types will be converted to type `String`. Default value of `max_dynamic_types` is `32`.
+- `some.path TypeName` is an optional type hint for particular path in the JSON. Such paths will be always stored as subcolumns with specified type.
+- `SKIP path.to.skip` is an optional hint for particular path that should be skipped during JSON parsing. Such paths will never be stored in the JSON column. If specified path is a nested JSON object, the whole nested object will be skipped.
+- `SKIP REGEXP 'path_regexp'` is an optional hint with a regular expression that is used to skip paths during JSON parsing. All paths that match this regular expression will never be stored in the JSON column.
+
+## Creating JSON
+
+Using `JSON` type in table column definition:
+
+```sql
+CREATE TABLE test (json JSON) ENGINE = Memory;
+INSERT INTO test VALUES ('{"a" : {"b" : 42}, "c" : [1, 2, 3]}'), ('{"f" : "Hello, World!"}'), ('{"a" : {"b" : 43, "e" : 10}, "c" : [4, 5, 6]}');
+SELECT json FROM test;
+```
+
+```text
+┌─json────────────────────────────────────────┐
+│ {"a":{"b":"42"},"c":["1","2","3"]}          │
+│ {"f":"Hello, World!"}                       │
+│ {"a":{"b":"43","e":"10"},"c":["4","5","6"]} │
+└─────────────────────────────────────────────┘
+```
+
+```sql
+CREATE TABLE test (json JSON(a.b UInt32, SKIP a.e)) ENGINE = Memory;
+INSERT INTO test VALUES ('{"a" : {"b" : 42}, "c" : [1, 2, 3]}'), ('{"f" : "Hello, World!"}'), ('{"a" : {"b" : 43, "e" : 10}, "c" : [4, 5, 6]}');
+SELECT json FROM test;
+```
+
+```text
+┌─json──────────────────────────────┐
+│ {"a":{"b":42},"c":[1,2,3]}        │
+│ {"a":{"b":0},"f":"Hello, World!"} │
+│ {"a":{"b":43},"c":[4,5,6]}        │
+└───────────────────────────────────┘
+```
+
+Using CAST from 'String':
+
+```sql
+SELECT '{"a" : {"b" : 42},"c" : [1, 2, 3], "d" : "Hello, World!"}'::JSON as json;
+```
+
+```text
+┌─json───────────────────────────────────────────┐
+│ {"a":{"b":42},"c":[1,2,3],"d":"Hello, World!"} │
+└────────────────────────────────────────────────┘
+```
+
+CAST from `JSON`, named `Tuple`, `Map` and `Object('json')` to `JSON` type will be supported later.
+
+## Reading JSON paths as subcolumns
+
+JSON type supports reading every path as a separate subcolumn. If type of the requested path was not specified in the JSON type declaration, the subcolumn of the path will always have type [Dynamic](/docs/en/sql-reference/data-types/dynamic.md).
+
+For example:
+
+```sql
+CREATE TABLE test (json JSON(a.b UInt32, SKIP a.e)) ENGINE = Memory;
+INSERT INTO test VALUES ('{"a" : {"b" : 42, "g" : 42.42}, "c" : [1, 2, 3], "d" : "2020-01-01"}'), ('{"f" : "Hello, World!", "d" : "2020-01-02"}'), ('{"a" : {"b" : 43, "e" : 10, "g" : 43.43}, "c" : [4, 5, 6]}');
+SELECT json FROM test;
+```
+
+```text
+┌─json──────────────────────────────────────────────────┐
+│ {"a":{"b":42,"g":42.42},"c":[1,2,3],"d":"2020-01-01"} │
+│ {"a":{"b":0},"d":"2020-01-02","f":"Hello, World!"}    │
+│ {"a":{"b":43,"g":43.43},"c":[4,5,6]}                  │
+└───────────────────────────────────────────────────────┘
+```
+
+```sql
+SELECT json.a.b, json.a.g, json.c, json.d FROM test;
+```
+
+```text
+┌─json.a.b─┬─json.a.g─┬─json.c──┬─json.d─────┐
+│       42 │ 42.42    │ [1,2,3] │ 2020-01-01 │
+│        0 │ ᴺᵁᴸᴸ     │ ᴺᵁᴸᴸ    │ 2020-01-02 │
+│       43 │ 43.43    │ [4,5,6] │ ᴺᵁᴸᴸ       │
+└──────────┴──────────┴─────────┴────────────┘
+```
+
+If the requested path wasn't found in the data, it will be filled with `NULL` values:
+
+```sql
+SELECT json.non.existing.path FROM test;
+```
+
+```text
+┌─json.non.existing.path─┐
+│ ᴺᵁᴸᴸ                   │
+│ ᴺᵁᴸᴸ                   │
+│ ᴺᵁᴸᴸ                   │
+└────────────────────────┘
+```
+
+Let's check the data types of returned subcolumns:
+```sql
+SELECT toTypeName(json.a.b), toTypeName(json.a.g), toTypeName(json.c), toTypeName(json.d) FROM test;
+```
+
+```text
+┌─toTypeName(json.a.b)─┬─toTypeName(json.a.g)─┬─toTypeName(json.c)─┬─toTypeName(json.d)─┐
+│ UInt32               │ Dynamic              │ Dynamic            │ Dynamic            │
+│ UInt32               │ Dynamic              │ Dynamic            │ Dynamic            │
+│ UInt32               │ Dynamic              │ Dynamic            │ Dynamic            │
+└──────────────────────┴──────────────────────┴────────────────────┴────────────────────┘
+```
+
+As we can see, for `a.b` the type is `UInt32` as we specified in the JSON type declaration, and for all other subcolumns the type is `Dynamic`.
+
+It is also possible to read subcolumns of a `Dynamic` type using special syntax `json.some.path.:TypeName`:
+
+```sql
+select json.a.g.:Float64, dynamicType(json.a.g), json.d.:Date, dynamicType(json.d) FROM test;
+```
+
+```text
+┌─json.a.g.:`Float64`─┬─dynamicType(json.a.g)─┬─json.d.:`Date`─┬─dynamicType(json.d)─┐
+│               42.42 │ Float64               │     2020-01-01 │ Date                │
+│                ᴺᵁᴸᴸ │ None                  │     2020-01-02 │ Date                │
+│               43.43 │ Float64               │           ᴺᵁᴸᴸ │ None                │
+└─────────────────────┴───────────────────────┴────────────────┴─────────────────────┘
+```
+
+`Dynamic` subcolumns can be casted to any data type. In this case the exception will be thrown if internal type inside `Dynamic` cannot be casted to the requested type:
+
+```sql
+select json.a.g::UInt64 as uint FROM test;
+```
+
+```text
+┌─uint─┐
+│   42 │
+│    0 │
+│   43 │
+└──────┘
+```
+
+```sql
+select json.a.g::UUID as float FROM test;
+```
+
+```text
+Received exception:
+Code: 48. DB::Exception: Conversion between numeric types and UUID is not supported. Probably the passed UUID is unquoted: while executing 'FUNCTION CAST(__table1.json.a.g :: 2, 'UUID'_String :: 1) -> CAST(__table1.json.a.g, 'UUID'_String) UUID : 0'. (NOT_IMPLEMENTED)
+```
+
+## Reading JSON sub-objects as subcolumns
+
+JSON type supports reading nested objects as subcolumns with type `JSON` using special syntax `json.^some.path`:
+
+```sql
+CREATE TABLE test (json JSON) ENGINE = Memory;
+INSERT INTO test VALUES ('{"a" : {"b" : {"c" : 42, "g" : 42.42}}, "c" : [1, 2, 3], "d" : {"e" : {"f" : {"g" : "Hello, World", "h" : [1, 2, 3]}}}}'), ('{"f" : "Hello, World!", "d" : {"e" : {"f" : {"h" : [4, 5, 6]}}}}'), ('{"a" : {"b" : {"c" : 43, "e" : 10, "g" : 43.43}}, "c" : [4, 5, 6]}');
+SELECT json FROM test;
+```
+
+```text
+┌─json────────────────────────────────────────────────────────────────────────────────────────┐
+│ {"a":{"b":{"c":42,"g":42.42}},"c":[1,2,3],"d":{"e":{"f":{"g":"Hello, World","h":[1,2,3]}}}} │
+│ {"d":{"e":{"f":{"h":[4,5,6]}}},"f":"Hello, World!"}                                         │
+│ {"a":{"b":{"c":43,"e":10,"g":43.43}},"c":[4,5,6]}                                           │
+└─────────────────────────────────────────────────────────────────────────────────────────────┘
+```
+
+```sql
+SELECT json.^a.b, json.^d.e.f FROM test;
+```
+
+```text
+┌─json.^`a`.b───────────────┬─json.^`d`.e.f────────────────────┐
+│ {"c":42,"g":42.42}        │ {"g":"Hello, World","h":[1,2,3]} │
+│ {}                        │ {"h":[4,5,6]}                    │
+│ {"c":43,"e":10,"g":43.43} │ {}                               │
+└───────────────────────────┴──────────────────────────────────┘
+```
+
+:::note
+Reading sub-objects as subcolumns may be inefficient, as this may require almost full scan of the JSON data.
+:::
+
+## Types inference for paths
+
+During JSON parsing ClickHouse tries to detect the most appropriate data type for each JSON path. It works similar to [automatic schema inference from input data](/docs/en/interfaces/schema-inference.md) and controlled by the same settings:
+ 
+- [input_format_try_infer_integers](/docs/en/interfaces/schema-inference.md#inputformattryinferintegers)
+- [input_format_try_infer_dates](/docs/en/interfaces/schema-inference.md#inputformattryinferdates)
+- [input_format_try_infer_datetimes](/docs/en/interfaces/schema-inference.md#inputformattryinferdatetimes)
+- [schema_inference_make_columns_nullable](/docs/en/interfaces/schema-inference.md#schemainferencemakecolumnsnullable)
+- [input_format_json_try_infer_numbers_from_strings](/docs/en/interfaces/schema-inference.md#inputformatjsontryinfernumbersfromstrings)
+- [input_format_json_infer_incomplete_types_as_strings](/docs/en/interfaces/schema-inference.md#inputformatjsoninferincompletetypesasstrings)
+- [input_format_json_read_numbers_as_strings](/docs/en/interfaces/schema-inference.md#inputformatjsonreadnumbersasstrings)
+- [input_format_json_read_bools_as_strings](/docs/en/interfaces/schema-inference.md#inputformatjsonreadboolsasstrings)
+- [input_format_json_read_bools_as_numbers](/docs/en/interfaces/schema-inference.md#inputformatjsonreadboolsasnumbers)
+- [input_format_json_read_arrays_as_strings](/docs/en/interfaces/schema-inference.md#inputformatjsonreadarraysasstrings)
+
+Let's see some examples:
+
+```sql
+SELECT JSONAllPathsWithTypes('{"a" : "2020-01-01", "b" : "2020-01-01 10:00:00"}'::JSON) AS paths_with_types settings input_format_try_infer_dates=1, input_format_try_infer_datetimes=1;
+```
+
+```text
+┌─paths_with_types─────────────────┐
+│ {'a':'Date','b':'DateTime64(9)'} │
+└──────────────────────────────────┘
+```
+
+```sql
+SELECT JSONAllPathsWithTypes('{"a" : "2020-01-01", "b" : "2020-01-01 10:00:00"}'::JSON) AS paths_with_types settings input_format_try_infer_dates=0, input_format_try_infer_datetimes=0;
+```
+
+```text
+┌─paths_with_types────────────┐
+│ {'a':'String','b':'String'} │
+└─────────────────────────────┘
+```
+
+```sql
+SELECT JSONAllPathsWithTypes('{"a" : [1, 2, 3]}'::JSON) AS paths_with_types settings schema_inference_make_columns_nullable=1;
+```
+
+```text
+┌─paths_with_types───────────────┐
+│ {'a':'Array(Nullable(Int64))'} │
+└────────────────────────────────┘
+```
+
+```sql
+SELECT JSONAllPathsWithTypes('{"a" : [1, 2, 3]}'::JSON) AS paths_with_types settings schema_inference_make_columns_nullable=0;
+```
+
+```text
+┌─paths_with_types─────┐
+│ {'a':'Array(Int64)'} │
+└──────────────────────┘
+```
+
+## Handling arrays of JSON objects
+
+JSON paths that contains an array of objects are parsed as type `Array(JSON)` and inserted into `Dynamic` column for this path. To read an array of objects you can extract it from `Dynamic` column as a subcolumn:
+
+```sql
+CREATE TABLE test (json JSON) ENGINE = Memory;
+INSERT INTO test VALUES
+('{"a" : {"b" : [{"c" : 42, "d" : "Hello", "f" : [[{"g" : 42.42}]], "k" : {"j" : 1000}}, {"c" : 43}, {"e" : [1, 2, 3], "d" : "My", "f" : [[{"g" : 43.43, "h" : "2020-01-01"}]],  "k" : {"j" : 2000}}]}}'),
+('{"a" : {"b" : [1, 2, 3]}}'),
+('{"a" : {"b" : [{"c" : 44, "f" : [[{"h" : "2020-01-02"}]]}, {"e" : [4, 5, 6], "d" : "World", "f" : [[{"g" : 44.44}]],  "k" : {"j" : 3000}}]}}');
+SELECT json FROM test;
+```
+
+```text3
+┌─json────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
+│ {"a":{"b":[{"c":"42","d":"Hello","f":[[{"g":42.42}]],"k":{"j":"1000"}},{"c":"43"},{"d":"My","e":["1","2","3"],"f":[[{"g":43.43,"h":"2020-01-01"}]],"k":{"j":"2000"}}]}} │
+│ {"a":{"b":["1","2","3"]}}                                                                                                                                               │
+│ {"a":{"b":[{"c":"44","f":[[{"h":"2020-01-02"}]]},{"d":"World","e":["4","5","6"],"f":[[{"g":44.44}]],"k":{"j":"3000"}}]}}                                                │
+└─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
+```
+
+```sql
+SELECT json.a.b, dynamicType(json.a.b) FROM test;
+```
+
+```text
+┌─json.a.b──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┬─dynamicType(json.a.b)────────────────────────────────────┐
+│ ['{"c":"42","d":"Hello","f":[[{"g":42.42}]],"k":{"j":"1000"}}','{"c":"43"}','{"d":"My","e":["1","2","3"],"f":[[{"g":43.43,"h":"2020-01-01"}]],"k":{"j":"2000"}}'] │ Array(JSON(max_dynamic_types=16, max_dynamic_paths=256)) │
+│ [1,2,3]                                                                                                                                                           │ Array(Nullable(Int64))                                   │
+│ ['{"c":"44","f":[[{"h":"2020-01-02"}]]}','{"d":"World","e":["4","5","6"],"f":[[{"g":44.44}]],"k":{"j":"3000"}}']                                                  │ Array(JSON(max_dynamic_types=16, max_dynamic_paths=256)) │
+└───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┴──────────────────────────────────────────────────────────┘
+```
+
+As you can notice, the `max_dynamic_types/max_dynamic_paths` parameters of the nested `JSON` type were reduced compared to the default values. It's needed to avoid number of subcolumns to grow  uncontrolled on nested arrays of JSON objects.
+
+Let's try to read subcolumns from this nested `JSON` column:
+
+```sql
+SELECT json.a.b.:`Array(JSON)`.c, json.a.b.:`Array(JSON)`.f, json.a.b.:`Array(JSON)`.d FROM test; 
+```
+
+```text
+┌─json.a.b.:`Array(JSON)`.c─┬─json.a.b.:`Array(JSON)`.f───────────────────────────────────┬─json.a.b.:`Array(JSON)`.d─┐
+│ [42,43,NULL]              │ [[['{"g":42.42}']],NULL,[['{"g":43.43,"h":"2020-01-01"}']]] │ ['Hello',NULL,'My']       │
+│ []                        │ []                                                          │ []                        │
+│ [44,NULL]                 │ [[['{"h":"2020-01-02"}']],[['{"g":44.44}']]]                │ [NULL,'World']            │
+└───────────────────────────┴─────────────────────────────────────────────────────────────┴───────────────────────────┘
+```
+
+We can avoid writing `Array(JSON)` subcolumn name using special syntax:
+
+```sql
+SELECT json.a.b[].c, json.a.b[].f, json.a.b[].d FROM test;
+```
+
+```text
+┌─json.a.b.:`Array(JSON)`.c─┬─json.a.b.:`Array(JSON)`.f───────────────────────────────────┬─json.a.b.:`Array(JSON)`.d─┐
+│ [42,43,NULL]              │ [[['{"g":42.42}']],NULL,[['{"g":43.43,"h":"2020-01-01"}']]] │ ['Hello',NULL,'My']       │
+│ []                        │ []                                                          │ []                        │
+│ [44,NULL]                 │ [[['{"h":"2020-01-02"}']],[['{"g":44.44}']]]                │ [NULL,'World']            │
+└───────────────────────────┴─────────────────────────────────────────────────────────────┴───────────────────────────┘
+```
+
+The number of `[]` after path indicates the array level. `json.path[][]` will be transformed to `json.path.:Array(Array(JSON))`
+
+Let's check the paths and types inside our `Array(JSON)`:
+
+```sql
+SELECT DISTINCT arrayJoin(JSONAllPathsWithTypes(arrayJoin(json.a.b[]))) FROM test;
+```
+
+```text
+┌─arrayJoin(JSONAllPathsWithTypes(arrayJoin(json.a.b.:`Array(JSON)`)))──┐
+│ ('c','Int64')                                                         │
+│ ('d','String')                                                        │
+│ ('f','Array(Array(JSON(max_dynamic_types=8, max_dynamic_paths=64)))') │
+│ ('k.j','Int64')                                                       │
+│ ('e','Array(Nullable(Int64))')                                        │
+└───────────────────────────────────────────────────────────────────────┘
+```
+
+Let's read subcolumns from `Array(JSON)` column:
+
+```sql
+SELECT json.a.b[].c.:Int64, json.a.b[].f[][].g.:Float64, json.a.b[].f[][].h.:Date FROM test;
+```
+
+```text
+┌─json.a.b.:`Array(JSON)`.c.:`Int64`─┬─json.a.b.:`Array(JSON)`.f.:`Array(Array(JSON))`.g.:`Float64`─┬─json.a.b.:`Array(JSON)`.f.:`Array(Array(JSON))`.h.:`Date`─┐
+│ [42,43,NULL]                       │ [[[42.42]],[],[[43.43]]]                                     │ [[[NULL]],[],[['2020-01-01']]]                            │
+│ []                                 │ []                                                           │ []                                                        │
+│ [44,NULL]                          │ [[[NULL]],[[44.44]]]                                         │ [[['2020-01-02']],[[NULL]]]                               │
+└────────────────────────────────────┴──────────────────────────────────────────────────────────────┴───────────────────────────────────────────────────────────┘
+```
+
+We can also read sub-object subcolumns from nested `JSON` column:
+
+```sql
+SELECT json.a.b[].^k FROM test
+```
+
+```text
+┌─json.a.b.:`Array(JSON)`.^`k`─────────┐
+│ ['{"j":"1000"}','{}','{"j":"2000"}'] │
+│ []                                   │
+│ ['{}','{"j":"3000"}']                │
+└──────────────────────────────────────┘
+```
+
+## Reading JSON type from the data
+
+All text formats (JSONEachRow, TSV, CSV, CustomSeparated, Values, etc) supports reading `JSON` type.
+
+Examples:
+
+```sql
+SELECT json FROM format(JSONEachRow, 'json JSON(a.b.c UInt32, SKIP a.b.d, SKIP d.e, SKIP REGEXP \'b.*\')', '
+{"json" : {"a" : {"b" : {"c" : 1, "d" : [0, 1]}}, "b" : "2020-01-01", "c" : 42, "d" : {"e" : {"f" : ["s1", "s2"]}, "i" : [1, 2, 3]}}}
+{"json" : {"a" : {"b" : {"c" : 2, "d" : [2, 3]}}, "b" : [1, 2, 3], "c" : null, "d" : {"e" : {"g" : 43}, "i" : [4, 5, 6]}}}
+{"json" : {"a" : {"b" : {"c" : 3, "d" : [4, 5]}}, "b" : {"c" : 10}, "e" : "Hello, World!"}}
+{"json" : {"a" : {"b" : {"c" : 4, "d" : [6, 7]}}, "c" : 43}}
+{"json" : {"a" : {"b" : {"c" : 5, "d" : [8, 9]}}, "b" : {"c" : 11, "j" : [1, 2, 3]}, "d" : {"e" : {"f" : ["s3", "s4"], "g" : 44}, "h" : "2020-02-02 10:00:00"}}}
+')
+```
+
+```text
+┌─json──────────────────────────────────────────────────────────┐
+│ {"a":{"b":{"c":1}},"c":"42","d":{"i":["1","2","3"]}}          │
+│ {"a":{"b":{"c":2}},"d":{"i":["4","5","6"]}}                   │
+│ {"a":{"b":{"c":3}},"e":"Hello, World!"}                       │
+│ {"a":{"b":{"c":4}},"c":"43"}                                  │
+│ {"a":{"b":{"c":5}},"d":{"h":"2020-02-02 10:00:00.000000000"}} │
+└───────────────────────────────────────────────────────────────┘
+```
+
+For text formats like CSV/TSV/etc `JSON` is parsed from a string containing JSON object
+
+```sql
+SELECT json FROM format(TSV, 'json JSON(a.b.c UInt32, SKIP a.b.d, SKIP REGEXP \'b.*\')',
+'{"a" : {"b" : {"c" : 1, "d" : [0, 1]}}, "b" : "2020-01-01", "c" : 42, "d" : {"e" : {"f" : ["s1", "s2"]}, "i" : [1, 2, 3]}}
+{"a" : {"b" : {"c" : 2, "d" : [2, 3]}}, "b" : [1, 2, 3], "c" : null, "d" : {"e" : {"g" : 43}, "i" : [4, 5, 6]}}
+{"a" : {"b" : {"c" : 3, "d" : [4, 5]}}, "b" : {"c" : 10}, "e" : "Hello, World!"}
+{"a" : {"b" : {"c" : 4, "d" : [6, 7]}}, "c" : 43}
+{"a" : {"b" : {"c" : 5, "d" : [8, 9]}}, "b" : {"c" : 11, "j" : [1, 2, 3]}, "d" : {"e" : {"f" : ["s3", "s4"], "g" : 44}, "h" : "2020-02-02 10:00:00"}}')
+```
+
+```text
+┌─json──────────────────────────────────────────────────────────┐
+│ {"a":{"b":{"c":1}},"c":"42","d":{"i":["1","2","3"]}}          │
+│ {"a":{"b":{"c":2}},"d":{"i":["4","5","6"]}}                   │
+│ {"a":{"b":{"c":3}},"e":"Hello, World!"}                       │
+│ {"a":{"b":{"c":4}},"c":"43"}                                  │
+│ {"a":{"b":{"c":5}},"d":{"h":"2020-02-02 10:00:00.000000000"}} │
+└───────────────────────────────────────────────────────────────┘
+```
+
+## Reaching the limit of dynamic paths inside JSON
+
+`JSON` data type can store only limited number of paths as separate subcolumns inside. By default, this limit is 1024, but you can change it in type declaration using parameter `max_dynamic_paths`.
+When the limit is reached, all new paths inserted to `JSON` column will be stored in a single shared data structure. It's still possible to read such paths as subcolumns, but it will require reading the whole
+shared data structure to extract the values of this path. This limit is needed to avoid the enormous number of different subcolumns that can make the table unusable.
+
+Let's see what happens when the limit is reached in different scenarios.
+
+### Reaching the limit during data parsing
+
+During parsing of `JSON` object from the data, when the limit is reached for current block of data, all new paths will be stored in a shared data structure. We can check it using introspection functions `JSONDynamicPaths, JSONSharedDataPaths`:
+
+```sql
+SELECT json, JSONDynamicPaths(json), JSONSharedDataPaths(json) FROM format(JSONEachRow, 'json JSON(max_dynamic_paths=3)', '
+{"json" : {"a" : {"b" : 42}, "c" : [1, 2, 3]}}
+{"json" : {"a" : {"b" : 43}, "d" : "2020-01-01"}}
+{"json" : {"a" : {"b" : 44}, "c" : [4, 5, 6]}}
+{"json" : {"a" : {"b" : 43}, "d" : "2020-01-02", "e" : "Hello", "f" : {"g" : 42.42}}}
+{"json" : {"a" : {"b" : 43}, "c" : [7, 8, 9], "f" : {"g" : 43.43}, "h" : "World"}}
+')
+```
+
+```text
+┌─json───────────────────────────────────────────────────────────┬─JSONDynamicPaths(json)─┬─JSONSharedDataPaths(json)─┐
+│ {"a":{"b":"42"},"c":["1","2","3"]}                             │ ['a.b','c','d']        │ []                        │
+│ {"a":{"b":"43"},"d":"2020-01-01"}                              │ ['a.b','c','d']        │ []                        │
+│ {"a":{"b":"44"},"c":["4","5","6"]}                             │ ['a.b','c','d']        │ []                        │
+│ {"a":{"b":"43"},"d":"2020-01-02","e":"Hello","f":{"g":42.42}}  │ ['a.b','c','d']        │ ['e','f.g']               │
+│ {"a":{"b":"43"},"c":["7","8","9"],"f":{"g":43.43},"h":"World"} │ ['a.b','c','d']        │ ['f.g','h']               │
+└────────────────────────────────────────────────────────────────┴────────────────────────┴───────────────────────────┘
+```
+
+As we can see, after inserting paths `e` and `f.g` the limit was reached and we inserted them into shared data structure.
+
+### During merges of data parts in MergeTree table engines
+
+During merge of several data parts in MergeTree table the `JSON` column in the resulting data part can reach the limit of dynamic paths won't be able to store all paths from source parts as subcolumns.
+In this case ClickHouse chooses what paths will remain as subcolumns after merge and what types will be stored in the shared data structure. In most cases ClickHouse tries to keep paths that contains
+the largest number of non-null values and move the rarest paths to the shared data structure, but it depends on the implementation.
+
+Let's see an example of such merge. First, let's create a table with `JSON` column, set the limit of dynamic paths to `3` and insert values with `5` different paths:
+
+```sql
+CREATE TABLE test (id UInt64, json JSON(max_dynamic_paths=3)) engine=MergeTree ORDER BY id;
+SYSTEM STOP MERGES test;
+INSERT INTO test SELECT number, formatRow('JSONEachRow', number as a) FROM numbers(5);
+INSERT INTO test SELECT number, formatRow('JSONEachRow', number as b) FROM numbers(4);
+INSERT INTO test SELECT number, formatRow('JSONEachRow', number as c) FROM numbers(3);
+INSERT INTO test SELECT number, formatRow('JSONEachRow', number as d) FROM numbers(2);
+INSERT INTO test SELECT number, formatRow('JSONEachRow', number as e)  FROM numbers(1);
+```
+
+Each insert will create a separate data pert with `JSON` column containing single path:
+```sql
+SELECT count(), JSONDynamicPaths(json) AS dynamic_paths, JSONSharedDataPaths(json) AS shared_data_paths, _part FROM test GROUP BY _part, dynamic_paths, shared_data_paths ORDER BY _part ASC
+```
+
+```text
+┌─count()─┬─dynamic_paths─┬─shared_data_paths─┬─_part─────┐
+│       5 │ ['a']         │ []                │ all_1_1_0 │
+│       4 │ ['b']         │ []                │ all_2_2_0 │
+│       3 │ ['c']         │ []                │ all_3_3_0 │
+│       2 │ ['d']         │ []                │ all_4_4_0 │
+│       1 │ ['e']         │ []                │ all_5_5_0 │
+└─────────┴───────────────┴───────────────────┴───────────┘
+
+```
+
+Now, let's merge all parts into one and see what will happen:
+
+```sql
+SYSTEM START MERGES test;
+OPTIMIZE TABLE test FINAL;
+SELECT count(), dynamicType(d), _part FROM test GROUP BY _part, dynamicType(d) ORDER BY _part;
+```
+
+```text
+┌─count()─┬─dynamic_paths─┬─shared_data_paths─┬─_part─────┐
+│       1 │ ['a','b','c'] │ ['e']             │ all_1_5_2 │
+│       2 │ ['a','b','c'] │ ['d']             │ all_1_5_2 │
+│      12 │ ['a','b','c'] │ []                │ all_1_5_2 │
+└─────────┴───────────────┴───────────────────┴───────────┘
+```
+
+As we can see, ClickHouse kept the most frequent paths `a`, `b` and `c` and moved paths `e` and `d` to shared data structure.
+
+## Introspection functions
+
+There are several functions that can help to inspect the content of the JSON column: [JSONAllPaths](../functions/json-functions.md#jsonallpaths), [JSONAllPathsWithTypes](../functions/json-functions.md#jsonallpathswithtypes), [JSONDynamicPaths](../functions/json-functions.md#jsondynamicpaths), [JSONDynamicPathsWithTypes](../functions/json-functions.md#jsondynamicpathswithtypes), [JSONSharedDataPaths](../functions/json-functions.md#jsonshareddatapaths), [JSONSharedDataPathsWithTypes](../functions/json-functions.md#jsonshareddatapathswithtypes).
+
+## Tips for better usage of the JSON type
+
+Before creating `JSON` column and loading data into it, consider the following tips:
+
+- Investigate your data and specify as many path hints with types as you can. It will make the storage and the reading much more efficient.
+- Think about what paths you will need and what paths you will never need. Specify paths that you won't need in the SKIP section and SKIP REGEXP if needed. It will improve the storage.
+- Don't set `max_dynamic_paths` parameter to very high values, it can make the storage and reading less efficient.

docs/en/sql-reference/data-types/special-data-types/interval.md

@@ -53,29 +53,28 @@ SELECT now() as current_date_time, current_date_time + INTERVAL 4 DAY
 └─────────────────────┴───────────────────────────────┘
 ```
 
-Intervals with different types can’t be combined. You can’t use intervals like `4 DAY 1 HOUR`. Specify intervals in units that are smaller or equal to the smallest unit of the interval, for example, the interval `1 day and an hour` interval can be expressed as `25 HOUR` or `90000 SECOND`.
-
-You can’t perform arithmetical operations with `Interval`-type values, but you can add intervals of different types consequently to values in `Date` or `DateTime` data types. For example:
+Also it is possible to use multiple intervals simultaneously:
 
 ``` sql
-SELECT now() AS current_date_time, current_date_time + INTERVAL 4 DAY + INTERVAL 3 HOUR
+SELECT now() AS current_date_time, current_date_time + (INTERVAL 4 DAY + INTERVAL 3 HOUR)
 ```
 
 ``` text
-┌───current_date_time─┬─plus(plus(now(), toIntervalDay(4)), toIntervalHour(3))─┐
-│ 2019-10-23 11:16:28 │                                    2019-10-27 14:16:28 │
-└─────────────────────┴────────────────────────────────────────────────────────┘
+┌───current_date_time─┬─plus(current_date_time, plus(toIntervalDay(4), toIntervalHour(3)))─┐
+│ 2024-08-08 18:31:39 │                                                2024-08-12 21:31:39 │
+└─────────────────────┴────────────────────────────────────────────────────────────────────┘
 ```
 
-The following query causes an exception:
+And to compare values with different intervals:
 
 ``` sql
-select now() AS current_date_time, current_date_time + (INTERVAL 4 DAY + INTERVAL 3 HOUR)
+SELECT toIntervalMicrosecond(3600000000) = toIntervalHour(1);
 ```
 
 ``` text
-Received exception from server (version 19.14.1):
-Code: 43. DB::Exception: Received from localhost:9000. DB::Exception: Wrong argument types for function plus: if one argument is Interval, then another must be Date or DateTime..
+┌─less(toIntervalMicrosecond(179999999), toIntervalMinute(3))─┐
+│                                                           1 │
+└─────────────────────────────────────────────────────────────┘
 ```
 
 ## See Also

docs/en/sql-reference/functions/conditional-functions.md

@@ -49,7 +49,7 @@ Result:
 
 ## multiIf
 
-Allows to write the [CASE](../../sql-reference/operators/index.md#operator_case) operator more compactly in the query.
+Allows to write the [CASE](../../sql-reference/operators/index.md#conditional-expression) operator more compactly in the query.
 
 **Syntax**
 
@@ -264,4 +264,4 @@ SELECT clamp(1, 2, 3) result,  toTypeName(result) type;
 ┌─result─┬─type────┐
 │      2 │ Float64 │
 └────────┴─────────┘
-```
+```