Merge branch 'master' into revert-34211-revert-34153-add_func_tests_over_s3

2024-11-24 08:32:02 +00:00 · 2022-02-13 21:07:54 +03:00 · 2022-02-13 21:07:54 +03:00 · 89373155fc
commit 89373155fc
parent 705529ca03 2cfe8578b7
166 changed files with 3116 additions and 1174 deletions
--- a/.clang-format
+++ b/.clang-format
@ -12,6 +12,7 @@ BraceWrapping:
    AfterUnion: true
    BeforeCatch: true
    BeforeElse: true
+    BeforeLambdaBody: true
    IndentBraces: false
 BreakConstructorInitializersBeforeComma: false
 Cpp11BracedListStyle: true
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@ -0,0 +1,73 @@
+name: NightlyBuilds
+
+env:
+  # Force the stdout and stderr streams to be unbuffered
+  PYTHONUNBUFFERED: 1
+
+"on":
+  schedule:
+    - cron: '0 0 * * *'
+
+jobs:
+  DockerHubPushAarch64:
+    runs-on: [self-hosted, style-checker-aarch64]
+    steps:
+      - name: Clear repository
+        run: |
+          sudo rm -fr "$GITHUB_WORKSPACE" && mkdir "$GITHUB_WORKSPACE"
+      - name: Check out repository code
+        uses: actions/checkout@v2
+      - name: Images check
+        run: |
+          cd "$GITHUB_WORKSPACE/tests/ci"
+          python3 docker_images_check.py --suffix aarch64 --all
+      - name: Upload images files to artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: changed_images_aarch64
+          path: ${{ runner.temp }}/docker_images_check/changed_images_aarch64.json
+  DockerHubPushAmd64:
+    runs-on: [self-hosted, style-checker]
+    steps:
+      - name: Clear repository
+        run: |
+          sudo rm -fr "$GITHUB_WORKSPACE" && mkdir "$GITHUB_WORKSPACE"
+      - name: Check out repository code
+        uses: actions/checkout@v2
+      - name: Images check
+        run: |
+          cd "$GITHUB_WORKSPACE/tests/ci"
+          python3 docker_images_check.py --suffix amd64 --all
+      - name: Upload images files to artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: changed_images_amd64
+          path: ${{ runner.temp }}/docker_images_check/changed_images_amd64.json
+  DockerHubPush:
+    needs: [DockerHubPushAmd64, DockerHubPushAarch64]
+    runs-on: [self-hosted, style-checker]
+    steps:
+      - name: Clear repository
+        run: |
+          sudo rm -fr "$GITHUB_WORKSPACE" && mkdir "$GITHUB_WORKSPACE"
+      - name: Check out repository code
+        uses: actions/checkout@v2
+      - name: Download changed aarch64 images
+        uses: actions/download-artifact@v2
+        with:
+          name: changed_images_aarch64
+          path: ${{ runner.temp }}
+      - name: Download changed amd64 images
+        uses: actions/download-artifact@v2
+        with:
+          name: changed_images_amd64
+          path: ${{ runner.temp }}
+      - name: Images check
+        run: |
+          cd "$GITHUB_WORKSPACE/tests/ci"
+          python3 docker_manifests_merge.py --suffix amd64 --suffix aarch64
+      - name: Upload images files to artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: changed_images
+          path: ${{ runner.temp }}/changed_images.json
--- a/.potato.yml
+++ b/.potato.yml
@ -1,27 +0,0 @@
-# This is the configuration file with settings for Potato.
-# Potato is an internal Yandex technology that allows us to sync internal [Yandex.Tracker](https://yandex.com/tracker/) and GitHub.
-
-# For all PRs where documentation is needed, just add a 'pr-feature' label and we will include it into documentation sprints.
-
-# The project name.
-name: clickhouse
-# Object handlers defines which handlers we use.
-handlers:
-  # The handler for creating an Yandex.Tracker issue.
-  - name: issue-create
-    params:
-      triggers:
-        # The trigger for creating the Yandex.Tracker issue. When the specified event occurs, it transfers PR data to Yandex.Tracker.
-        github:pullRequest:labeled:
-          data:
-          # The Yandex.Tracker queue to create the issue in. Each issue in Tracker belongs to one of the project queues.
-          queue: CLICKHOUSEDOCS
-          # The issue title.
-          summary: '[Potato] Pull Request #{{pullRequest.number}}'
-          # The issue description.
-          description: >
-                {{pullRequest.description}}
-
-                Ссылка на Pull Request: {{pullRequest.webUrl}}
-          # The condition for creating the Yandex.Tracker issue.
-          condition: eventPayload.labels.filter(label => ['pr-feature'].includes(label.name)).length
--- a/contrib/rocksdb-cmake/CMakeLists.txt
+++ b/contrib/rocksdb-cmake/CMakeLists.txt
@ -127,11 +127,6 @@ endif()

 if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
  add_definitions(-DOS_MACOSX)
-  if(CMAKE_SYSTEM_PROCESSOR MATCHES arm)
-    add_definitions(-DIOS_CROSS_COMPILE -DROCKSDB_LITE)
-    # no debug info for IOS, that will make our library big
-    add_definitions(-DNDEBUG)
-  endif()
 elseif(CMAKE_SYSTEM_NAME MATCHES "Linux")
  add_definitions(-DOS_LINUX)
 elseif(CMAKE_SYSTEM_NAME MATCHES "SunOS")
--- a/docker-compose.yml
+++ b/docker-compose.yml
@ -1,15 +0,0 @@
-version: "2"
-
-services:
-  builder:
-    image: clickhouse/clickhouse-builder
-    build: docker/builder
-  client:
-    image: clickhouse/clickhouse-client
-    build: docker/client
-    command: ['--host', 'server']
-  server:
-    image: clickhouse/clickhouse-server
-    build: docker/server
-    ports:
-      - 8123:8123
--- a/docker/images.json
+++ b/docker/images.json
@ -32,6 +32,7 @@
        "dependent": []
    },
    "docker/test/pvs": {
+        "only_amd64": true,
        "name": "clickhouse/pvs-test",
        "dependent": []
    },
@ -72,6 +73,7 @@
        "dependent": []
    },
    "docker/test/integration/runner": {
+        "only_amd64": true,
        "name": "clickhouse/integration-tests-runner",
        "dependent": []
    },
@ -124,6 +126,7 @@
        "dependent": []
    },
    "docker/test/integration/kerberos_kdc": {
+        "only_amd64": true,
        "name": "clickhouse/kerberos-kdc",
        "dependent": []
    },
@ -137,6 +140,7 @@
         ]
    },
    "docker/test/integration/kerberized_hadoop": {
+        "only_amd64": true,
        "name": "clickhouse/kerberized-hadoop",
        "dependent": []
    },
--- a/docker/test/fuzzer/run-fuzzer.sh
+++ b/docker/test/fuzzer/run-fuzzer.sh
@ -185,15 +185,14 @@ handle SIGUSR2 nostop noprint pass
 handle SIG$RTMIN nostop noprint pass
 info signals
 continue
+gcore
 backtrace full
-info locals
+thread apply all backtrace full
 info registers
 disassemble /s
 up
-info locals
 disassemble /s
 up
-info locals
 disassemble /s
 p \"done\"
 detach
@ -314,6 +313,11 @@ quit
            || echo "Fuzzer failed ($fuzzer_exit_code). See the logs." ; } \
            | tail -1 > description.txt
    fi
+
+    if test -f core.*; then
+        pigz core.*
+        mv core.*.gz core.gz
+    fi
 }

 case "$stage" in
@ -345,6 +349,10 @@ case "$stage" in
    time fuzz
    ;&
 "report")
+CORE_LINK=''
+if [ -f core.gz ]; then
+    CORE_LINK='<a href="core.gz">core.gz</a>'
+fi
 cat > report.html <<EOF ||:
 <!DOCTYPE html>
 <html lang="en">
@ -386,6 +394,7 @@ th { cursor: pointer; }
 <a href="fuzzer.log">fuzzer.log</a>
 <a href="server.log">server.log</a>
 <a href="main.log">main.log</a>
+${CORE_LINK}
 </p>
 <table>
 <tr><th>Test name</th><th>Test status</th><th>Description</th></tr>
--- a/docker/test/integration/kerberized_hadoop/Dockerfile
+++ b/docker/test/integration/kerberized_hadoop/Dockerfile
@ -20,4 +20,4 @@ RUN cd /tmp && \
 	cd commons-daemon-1.0.15-src/src/native/unix && \
 	./configure && \
 	make && \
-	cp ./jsvc /usr/local/hadoop/sbin
+	cp ./jsvc /usr/local/hadoop-2.7.0/sbin
--- a/docker/test/integration/runner/Dockerfile
+++ b/docker/test/integration/runner/Dockerfile
@ -58,9 +58,7 @@ RUN apt-get update \

 RUN dockerd --version; docker --version

-ARG TARGETARCH
-# FIXME: psycopg2-binary is not available for aarch64, we skip it for now
-RUN test x$TARGETARCH = xarm64 || ( python3 -m pip install \
+RUN python3 -m pip install \
    PyMySQL \
    aerospike==4.0.0 \
    avro==1.10.2 \
@ -90,7 +88,7 @@ RUN test x$TARGETARCH = xarm64 || ( python3 -m pip install \
    urllib3 \
    requests-kerberos \
    pyhdfs \
-    azure-storage-blob )
+    azure-storage-blob

 COPY modprobe.sh /usr/local/bin/modprobe
 COPY dockerd-entrypoint.sh /usr/local/bin/
--- a/docker/test/performance-comparison/Dockerfile
+++ b/docker/test/performance-comparison/Dockerfile
@ -1,5 +1,5 @@
 # docker build -t clickhouse/performance-comparison .
-FROM ubuntu:18.04
+FROM ubuntu:20.04

 # ARG for quick switch to a given ubuntu mirror
 ARG apt_archive="http://archive.ubuntu.com"
--- a/docker/test/pvs/Dockerfile
+++ b/docker/test/pvs/Dockerfile
@ -4,11 +4,7 @@
 ARG FROM_TAG=latest
 FROM clickhouse/binary-builder:$FROM_TAG

-# PVS studio doesn't support aarch64/arm64, so there is a check for it everywhere
-# We'll produce an empty image for arm64
-ARG TARGETARCH
-
-RUN test x$TARGETARCH = xarm64 || ( apt-get update --yes \
+RUN apt-get update --yes \
    && apt-get install \
        bash \
        wget \
@ -21,7 +17,7 @@ RUN test x$TARGETARCH = xarm64 || ( apt-get update --yes \
        libprotoc-dev \
        libgrpc++-dev \
        libc-ares-dev \
-        --yes --no-install-recommends )
+        --yes --no-install-recommends

 #RUN wget -nv -O - http://files.viva64.com/etc/pubkey.txt | sudo apt-key add -
 #RUN sudo wget -nv -O /etc/apt/sources.list.d/viva64.list http://files.viva64.com/etc/viva64.list
@ -33,7 +29,7 @@ RUN test x$TARGETARCH = xarm64 || ( apt-get update --yes \

 ENV PKG_VERSION="pvs-studio-latest"

-RUN test x$TARGETARCH = xarm64 || ( set -x \
+RUN set -x \
    && export PUBKEY_HASHSUM="ad369a2e9d8b8c30f5a9f2eb131121739b79c78e03fef0f016ea51871a5f78cd4e6257b270dca0ac3be3d1f19d885516" \
    && wget -nv https://files.viva64.com/etc/pubkey.txt -O /tmp/pubkey.txt \
    && echo "${PUBKEY_HASHSUM} /tmp/pubkey.txt" | sha384sum -c \
@ -41,7 +37,7 @@ RUN test x$TARGETARCH = xarm64 || ( set -x \
    && wget -nv "https://files.viva64.com/${PKG_VERSION}.deb" \
    && { debsig-verify ${PKG_VERSION}.deb \
    || echo "WARNING: Some file was just downloaded from the internet without any validation and we are installing it into the system"; } \
-    && dpkg -i "${PKG_VERSION}.deb" )
+    && dpkg -i "${PKG_VERSION}.deb"

 ENV CCACHE_DIR=/test_output/ccache

--- a/docker/test/stress/run.sh
+++ b/docker/test/stress/run.sh
@ -148,14 +148,12 @@ info signals
 continue
 gcore
 backtrace full
-info locals
+thread apply all backtrace full
 info registers
 disassemble /s
 up
-info locals
 disassemble /s
 up
-info locals
 disassemble /s
 p \"done\"
 detach
@ -269,5 +267,5 @@ clickhouse-local --structure "test String, res String" -q "SELECT 'failure', tes
 # Default filename is 'core.PROCESS_ID'
 for core in core.*; do
    pigz $core
-    mv $core.gz /output/
+    mv $core.gz /test_output/
 done
--- a/docker/test/testflows/runner/Dockerfile
+++ b/docker/test/testflows/runner/Dockerfile
@ -43,24 +43,27 @@ RUN pip3 install urllib3 testflows==1.7.20 docker-compose==1.29.1 docker==5.0.0
 ENV DOCKER_CHANNEL stable
 ENV DOCKER_VERSION 20.10.6

-RUN set -eux; \
-  \
-# this "case" statement is generated via "update.sh"
-  \
-  if ! wget -nv -O docker.tgz "https://download.docker.com/linux/static/${DOCKER_CHANNEL}/x86_64/docker-${DOCKER_VERSION}.tgz"; then \
-    echo >&2 "error: failed to download 'docker-${DOCKER_VERSION}' from '${DOCKER_CHANNEL}' for '${x86_64}'"; \
-    exit 1; \
-  fi; \
-  \
-  tar --extract \
+# Architecture of the image when BuildKit/buildx is used
+ARG TARGETARCH
+
+# Install docker
+RUN arch=${TARGETARCH:-amd64} \
+  && case $arch in \
+      amd64) rarch=x86_64 ;; \
+      arm64) rarch=aarch64 ;; \
+    esac \
+  && set -eux \
+  && if ! wget -nv -O docker.tgz "https://download.docker.com/linux/static/${DOCKER_CHANNEL}/${rarch}/docker-${DOCKER_VERSION}.tgz"; then \
+    echo >&2 "error: failed to download 'docker-${DOCKER_VERSION}' from '${DOCKER_CHANNEL}' for '${rarch}'" \
+    && exit 1; \
+  fi \
+  && tar --extract \
    --file docker.tgz \
    --strip-components 1 \
    --directory /usr/local/bin/ \
-  ; \
-  rm docker.tgz; \
-  \
-  dockerd --version; \
-  docker --version
+  && rm docker.tgz \
+  && dockerd --version \
+  && docker --version

 COPY modprobe.sh /usr/local/bin/modprobe
 COPY dockerd-entrypoint.sh /usr/local/bin/
--- a/docs/en/engines/table-engines/mergetree-family/mergetree.md
+++ b/docs/en/engines/table-engines/mergetree-family/mergetree.md
@ -886,3 +886,12 @@ S3 disk can be configured as `main` or `cold` storage:
 ```

 In case of `cold` option a data can be moved to S3 if local disk free size will be smaller than `move_factor * disk_size` or by TTL move rule.
+
+## Virtual Columns {#virtual-columns}
+
+-   `_part` — Name of a part.
+-   `_part_index` — Sequential index of the part in the query result.
+-   `_partition_id` — Name of a partition.
+-   `_part_uuid` — Unique part identifier (if enabled MergeTree setting `assign_part_uuids`).
+-   `_partition_value` — Values (a tuple) of a `partition by` expression.
+-   `_sample_factor` — Sample factor (from the query).
--- a/docs/en/engines/table-engines/special/distributed.md
+++ b/docs/en/engines/table-engines/special/distributed.md
@ -209,6 +209,8 @@ When querying a `Distributed` table, `SELECT` queries are sent to all shards and

 When the `max_parallel_replicas` option is enabled, query processing is parallelized across all replicas within a single shard. For more information, see the section [max_parallel_replicas](../../../operations/settings/settings.md#settings-max_parallel_replicas).

+To learn more about how distibuted `in` and `global in` queries are processed, refer to [this](../../../sql-reference/operators/in.md#select-distributed-subqueries) documentation. 
+
 ## Virtual Columns {#virtual-columns}

 -   `_shard_num` — Contains the `shard_num` value from the table `system.clusters`. Type: [UInt32](../../../sql-reference/data-types/int-uint.md).
--- a/docs/en/engines/table-engines/special/url.md
+++ b/docs/en/engines/table-engines/special/url.md
@ -7,18 +7,29 @@ toc_title: URL

 Queries data to/from a remote HTTP/HTTPS server. This engine is similar to the [File](../../../engines/table-engines/special/file.md) engine.

-Syntax: `URL(URL, Format)`
+Syntax: `URL(URL [,Format] [,CompressionMethod])`
+
+- The `URL` parameter must conform to the structure of a Uniform Resource Locator. The specified URL must point to a server that uses HTTP or HTTPS. This does not require any additional headers for getting a response from the server.
+
+- The `Format` must be one that ClickHouse can use in `SELECT` queries and, if necessary, in `INSERTs`. For the full list of supported formats, see [Formats](../../../interfaces/formats.md#formats).
+
+- `CompressionMethod` indicates that whether the HTTP body should be compressed. If the compression is enabled, the HTTP packets sent by the URL engine contain 'Content-Encoding' header to indicate which compression method is used. 
+
+To enable compression, please first make sure the remote HTTP endpoint indicated by the `URL` parameter supports corresponding compression algorithm.
+   
+The supported `CompressionMethod` should be one of following:
+- gzip or gz
+- deflate
+- brotli or br
+- lzma or xz
+- zstd or zst
+- lz4
+- bz2
+- snappy
+- none

 ## Usage {#using-the-engine-in-the-clickhouse-server}

-The `format` must be one that ClickHouse can use in
-`SELECT` queries and, if necessary, in `INSERTs`. For the full list of supported formats, see
-[Formats](../../../interfaces/formats.md#formats).
-
-The `URL` must conform to the structure of a Uniform Resource Locator. The specified URL must point to a server
-that uses HTTP or HTTPS. This does not require any
-additional headers for getting a response from the server.
-
 `INSERT` and `SELECT` queries are transformed to `POST` and `GET` requests,
 respectively. For processing `POST` requests, the remote server must support
 [Chunked transfer encoding](https://en.wikipedia.org/wiki/Chunked_transfer_encoding).
--- a/docs/en/operations/settings/settings.md
+++ b/docs/en/operations/settings/settings.md
@ -2304,7 +2304,7 @@ Possible values:
 -   1 — Enabled.
 -   0 — Disabled.

-Default value: `0`.
+Default value: `1`.

 ## output_format_parallel_formatting {#output-format-parallel-formatting}

@ -2315,7 +2315,7 @@ Possible values:
 -   1 — Enabled.
 -   0 — Disabled.

-Default value: `0`.
+Default value: `1`.

 ## min_chunk_bytes_for_parallel_parsing {#min-chunk-bytes-for-parallel-parsing}

--- a/docs/en/sql-reference/operators/in.md
+++ b/docs/en/sql-reference/operators/in.md
@ -216,6 +216,17 @@ This is more optimal than using the normal IN. However, keep the following point

 It also makes sense to specify a local table in the `GLOBAL IN` clause, in case this local table is only available on the requestor server and you want to use data from it on remote servers.

+### Distributed Subqueries and max_rows_in_set
+
+You can use [`max_rows_in_set`](../../operations/settings/query-complexity.md#max-rows-in-set) and [`max_bytes_in_set`](../../operations/settings/query-complexity.md#max-rows-in-set) to control how much data is tranferred during distributed queries. 
+
+This is specially important if the  `global in` query returns a large amount of data. Consider the following sql - 
+```sql
+select * from table1 where col1 global in (select col1 from table2 where <some_predicate>)
+```
+ 
+If `some_predicate` is not selective enough, it will return large amount of data and cause performance issues. In such cases, it is wise to limit the data transfer over the network. Also, note that [`set_overflow_mode`](../../operations/settings/query-complexity.md#set_overflow_mode) is set to `throw` (by default) meaning that an exception is raised when these thresholds are met.
+
 ### Distributed Subqueries and max_parallel_replicas {#max_parallel_replica-subqueries}

 When max_parallel_replicas is greater than 1, distributed queries are further transformed. For example, the following:
--- a/docs/en/sql-reference/statements/alter/column.md
+++ b/docs/en/sql-reference/statements/alter/column.md
@ -197,12 +197,13 @@ ALTER TABLE table_with_ttl MODIFY COLUMN column_ttl REMOVE TTL;

 ## MATERIALIZE COLUMN {#materialize-column}

-Materializes the column in the parts where the column is missing. This is useful in case of creating a new column with complicated `DEFAULT` or `MATERIALIZED` expression. Calculation of the column directly on `SELECT` query can cause bigger request execution time, so it is reasonable to use `MATERIALIZE COLUMN` for such columns. To perform same manipulation for existing column, use `FINAL` modifier.
+Materializes or updates a column with an expression for a default value (`DEFAULT` or `MATERIALIZED`).
+It is used if it is necessary to add or update a column with a complicated expression, because evaluating such an expression directly on `SELECT` executing turns out to be expensive. 

 Syntax:

 ```sql
-ALTER TABLE table MATERIALIZE COLUMN col [FINAL];
+ALTER TABLE table MATERIALIZE COLUMN col;
 ```

 **Example**
@ -211,20 +212,34 @@ ALTER TABLE table MATERIALIZE COLUMN col [FINAL];
 DROP TABLE IF EXISTS tmp;
 SET mutations_sync = 2;
 CREATE TABLE tmp (x Int64) ENGINE = MergeTree() ORDER BY tuple() PARTITION BY tuple();
-INSERT INTO tmp SELECT * FROM system.numbers LIMIT 10;
+INSERT INTO tmp SELECT * FROM system.numbers LIMIT 5;
 ALTER TABLE tmp ADD COLUMN s String MATERIALIZED toString(x);

 ALTER TABLE tmp MATERIALIZE COLUMN s;

+SELECT groupArray(x), groupArray(s) FROM (select x,s from tmp order by x);
+
+┌─groupArray(x)─┬─groupArray(s)─────────┐
+│ [0,1,2,3,4]   │ ['0','1','2','3','4'] │
+└───────────────┴───────────────────────┘
+
+ALTER TABLE tmp MODIFY COLUMN s String MATERIALIZED toString(round(100/x));
+
+INSERT INTO tmp SELECT * FROM system.numbers LIMIT 5,5;
+
 SELECT groupArray(x), groupArray(s) FROM tmp;
-```

-**Result:**
+┌─groupArray(x)─────────┬─groupArray(s)──────────────────────────────────┐
+│ [0,1,2,3,4,5,6,7,8,9] │ ['0','1','2','3','4','20','17','14','12','11'] │
+└───────────────────────┴────────────────────────────────────────────────┘

-```sql
-┌─groupArray(x)─────────┬─groupArray(s)─────────────────────────────┐
-│ [0,1,2,3,4,5,6,7,8,9] │ ['0','1','2','3','4','5','6','7','8','9'] │
-└───────────────────────┴───────────────────────────────────────────┘
+ALTER TABLE tmp MATERIALIZE COLUMN s;
+
+SELECT groupArray(x), groupArray(s) FROM tmp;
+
+┌─groupArray(x)─────────┬─groupArray(s)─────────────────────────────────────────┐
+│ [0,1,2,3,4,5,6,7,8,9] │ ['inf','100','50','33','25','20','17','14','12','11'] │
+└───────────────────────┴───────────────────────────────────────────────────────┘
 ```

 **See Also**
--- a/docs/en/whats-new/roadmap.md
+++ b/docs/en/whats-new/roadmap.md
@ -5,6 +5,6 @@ toc_title: Roadmap

 # Roadmap {#roadmap}

-The roadmap for the year 2021 is published for open discussion [here](https://github.com/ClickHouse/ClickHouse/issues/17623).
+The roadmap for the year 2022 is published for open discussion [here](https://github.com/ClickHouse/ClickHouse/issues/32513).

 {## [Original article](https://clickhouse.com/docs/en/roadmap/) ##}
--- a/docs/ru/engines/table-engines/mergetree-family/mergetree.md
+++ b/docs/ru/engines/table-engines/mergetree-family/mergetree.md
@ -872,3 +872,13 @@ SETTINGS storage_policy = 'moving_from_ssd_to_hdd'
 ```

 Если диск сконфигурирован как `cold`, данные будут переноситься в S3 при срабатывании правил TTL или когда свободное место на локальном диске станет меньше порогового значения, которое определяется как `move_factor * disk_size`.
+
+## Виртуальные столбцы {#virtual-columns}
+
+-   `_part` — Имя куска.
+-   `_part_index` — Номер куска по порядку в результате запроса.
+-   `_partition_id` — Имя партиции.
+-   `_part_uuid` — Уникальный идентификатор куска (если включена MergeTree настройка `assign_part_uuids`).
+-   `_partition_value` — Значения (кортеж) выражения `partition by`.
+-   `_sample_factor` — Коэффициент сэмплирования (из запроса).
+
--- a/docs/ru/operations/settings/settings.md
+++ b/docs/ru/operations/settings/settings.md
@ -2119,7 +2119,7 @@ ClickHouse генерирует исключение:
 -   1 — включен режим параллельного разбора.
 -   0 — отключен режим параллельного разбора.

-Значение по умолчанию: `0`.
+Значение по умолчанию: `1`.

 ## output_format_parallel_formatting {#output-format-parallel-formatting}

@ -2130,7 +2130,7 @@ ClickHouse генерирует исключение:
 -   1 — включен режим параллельного форматирования.
 -   0 — отключен режим параллельного форматирования.

-Значение по умолчанию: `0`.
+Значение по умолчанию: `1`.

 ## min_chunk_bytes_for_parallel_parsing {#min-chunk-bytes-for-parallel-parsing}

--- a/docs/ru/sql-reference/statements/alter/column.md
+++ b/docs/ru/sql-reference/statements/alter/column.md
@ -197,12 +197,13 @@ ALTER TABLE table_with_ttl MODIFY COLUMN column_ttl REMOVE TTL;

 ## MATERIALIZE COLUMN {#materialize-column}

-Материализует столбец таблицы в кусках, в которых отсутствуют значения. Используется, если необходимо создать новый столбец со сложным материализованным выражением или выражением для заполнения по умолчанию (`DEFAULT`), потому как вычисление такого столбца прямо во время выполнения запроса `SELECT` оказывается ощутимо затратным. Чтобы совершить ту же операцию для существующего столбца, используйте модификатор `FINAL`.
+Материализует или обновляет столбец таблицы с выражением для значения по умолчанию (`DEFAULT` или `MATERIALIZED`).
+Используется, если необходимо добавить или обновить столбец со сложным выражением, потому как вычисление такого выражения прямо во время выполнения запроса `SELECT` оказывается ощутимо затратным.

 Синтаксис:

 ```sql
-ALTER TABLE table MATERIALIZE COLUMN col [FINAL];
+ALTER TABLE table MATERIALIZE COLUMN col;
 ```

 **Пример**
@ -211,21 +212,39 @@ ALTER TABLE table MATERIALIZE COLUMN col [FINAL];
 DROP TABLE IF EXISTS tmp;
 SET mutations_sync = 2;
 CREATE TABLE tmp (x Int64) ENGINE = MergeTree() ORDER BY tuple() PARTITION BY tuple();
-INSERT INTO tmp SELECT * FROM system.numbers LIMIT 10;
+INSERT INTO tmp SELECT * FROM system.numbers LIMIT 5;
 ALTER TABLE tmp ADD COLUMN s String MATERIALIZED toString(x);

 ALTER TABLE tmp MATERIALIZE COLUMN s;

+SELECT groupArray(x), groupArray(s) FROM (select x,s from tmp order by x);
+
+┌─groupArray(x)─┬─groupArray(s)─────────┐
+│ [0,1,2,3,4]   │ ['0','1','2','3','4'] │
+└───────────────┴───────────────────────┘
+
+ALTER TABLE tmp MODIFY COLUMN s String MATERIALIZED toString(round(100/x));
+
+INSERT INTO tmp SELECT * FROM system.numbers LIMIT 5,5;
+
 SELECT groupArray(x), groupArray(s) FROM tmp;
+
+┌─groupArray(x)─────────┬─groupArray(s)──────────────────────────────────┐
+│ [0,1,2,3,4,5,6,7,8,9] │ ['0','1','2','3','4','20','17','14','12','11'] │
+└───────────────────────┴────────────────────────────────────────────────┘
+
+ALTER TABLE tmp MATERIALIZE COLUMN s;
+
+SELECT groupArray(x), groupArray(s) FROM tmp;
+
+┌─groupArray(x)─────────┬─groupArray(s)─────────────────────────────────────────┐
+│ [0,1,2,3,4,5,6,7,8,9] │ ['inf','100','50','33','25','20','17','14','12','11'] │
+└───────────────────────┴───────────────────────────────────────────────────────┘
 ```

-**Результат:**
+**Смотрите также**

-```sql
-┌─groupArray(x)─────────┬─groupArray(s)─────────────────────────────┐
-│ [0,1,2,3,4,5,6,7,8,9] │ ['0','1','2','3','4','5','6','7','8','9'] │
-└───────────────────────┴───────────────────────────────────────────┘
-```
+- [MATERIALIZED](../../statements/create/table.md#materialized).

 ## Ограничения запроса ALTER {#ogranicheniia-zaprosa-alter}

--- a/docs/zh/engines/database-engines/index.md
+++ b/docs/zh/engines/database-engines/index.md
@ -14,7 +14,7 @@ toc_title: Introduction

 -   [MySQL](../../engines/database-engines/mysql.md)

-   [MaterializeMySQL](../../engines/database-engines/materialize-mysql.md)
+-   [MaterializeMySQL](../../engines/database-engines/materialized-mysql.md)

 -   [Lazy](../../engines/database-engines/lazy.md)

--- a/docs/zh/engines/database-engines/materialized-mysql.md
+++ b/docs/zh/engines/database-engines/materialized-mysql.md
@ -1 +0,0 @@
-../../../en/engines/database-engines/materialized-mysql.md
--- a/docs/zh/engines/database-engines/materialized-mysql.md
+++ b/docs/zh/engines/database-engines/materialized-mysql.md
@ -0,0 +1,274 @@
+---
+toc_priority: 29
+toc_title: MaterializedMySQL
+---
+
+# [experimental] MaterializedMySQL {#materialized-mysql}
+
+!!! warning "警告"
+    这是一个实验性的特性，不应该在生产中使用.
+
+
+创建ClickHouse数据库，包含MySQL中所有的表，以及这些表中的所有数据。
+
+ClickHouse服务器作为MySQL副本工作。它读取binlog并执行DDL和DML查询。
+
+## 创建数据库 {#creating-a-database}
+
+``` sql
+CREATE DATABASE [IF NOT EXISTS] db_name [ON CLUSTER cluster]
+ENGINE = MaterializedMySQL('host:port', ['database' | database], 'user', 'password') [SETTINGS ...]
+[TABLE OVERRIDE table1 (...), TABLE OVERRIDE table2 (...)]
+```
+
+**引擎参数**
+
+-   `host:port` — MySQL 服务地址.
+-   `database` — MySQL 数据库名称.
+-   `user` — MySQL 用户名.
+-   `password` — MySQL 用户密码.
+
+**引擎配置**
+
+
+- `max_rows_in_buffer` — 允许在内存中缓存数据的最大行数(对于单个表和无法查询的缓存数据)。当超过这个数字时，数据将被物化。默认值:`65 505`。
+- `max_bytes_in_buffer` - 允许在内存中缓存数据的最大字节数(对于单个表和无法查询的缓存数据)。当超过这个数字时，数据将被物化。默认值: `1 048 576 `。
+- `max_rows_in_buffers` - 允许在内存中缓存数据的最大行数(用于数据库和无法查询的缓存数据)。当超过这个数字时，数据将被物化。默认值: `65 505`。
+- `max_bytes_in_buffers` - 允许在内存中缓存数据的最大字节数(用于数据库和无法查询的缓存数据)。当超过这个数字时，数据将被物化。默认值: `1 048 576`。
+- `max_flush_data_time ` - 允许数据在内存中缓存的最大毫秒数(对于数据库和无法查询的缓存数据)。当超过这个时间，数据将被物化。默认值: `1000`。
+- `max_wait_time_when_mysql_unavailable` - MySQL不可用时的重试间隔(毫秒)。负值禁用重试。默认值:`1000`。
+— `allows_query_when_mysql_lost `—允许在MySQL丢失时查询物化表。默认值:`0`(`false`)。
+
+```sql
+CREATE DATABASE mysql ENGINE = MaterializedMySQL('localhost:3306', 'db', 'user', '***')
+     SETTINGS
+        allows_query_when_mysql_lost=true,
+        max_wait_time_when_mysql_unavailable=10000;
+```
+
+**MySQL服务器端配置**
+
+为了`MaterializedMySQL`的正确工作，有一些必须设置的`MySQL`端配置设置:
+
+- `default_authentication_plugin = mysql_native_password `，因为 `MaterializedMySQL` 只能授权使用该方法。
+- `gtid_mode = on`，因为基于GTID的日志记录是提供正确的 `MaterializedMySQL`复制的强制要求。
+
+!!! attention "注意"
+    当打开`gtid_mode`时，您还应该指定`enforce_gtid_consistency = on`。
+
+## 虚拟列 {#virtual-columns}
+
+当使用`MaterializeMySQL`数据库引擎时，[ReplacingMergeTree](../../engines/table-engines/mergetree-family/replacingmergetree.md)表与虚拟的`_sign`和`_version`列一起使用。
+
+- `_version` — 事务版本. 类型 [UInt64](../../sql-reference/data-types/int-uint.md).
+- `_sign` — 删除标记. 类型 [Int8](../../sql-reference/data-types/int-uint.md). 可能的值:
+    - `1` — 行没有删除,
+    - `-1` — 行已被删除.
+
+## 支持的数据类型 {#data_types-support}
+
+| MySQL                   | ClickHouse                                                   |
+|-------------------------|--------------------------------------------------------------|
+| TINY                    | [Int8](../../sql-reference/data-types/int-uint.md)           |
+| SHORT                   | [Int16](../../sql-reference/data-types/int-uint.md)          |
+| INT24                   | [Int32](../../sql-reference/data-types/int-uint.md)          |
+| LONG                    | [UInt32](../../sql-reference/data-types/int-uint.md)         |
+| LONGLONG                | [UInt64](../../sql-reference/data-types/int-uint.md)         |
+| FLOAT                   | [Float32](../../sql-reference/data-types/float.md)           |
+| DOUBLE                  | [Float64](../../sql-reference/data-types/float.md)           |
+| DECIMAL, NEWDECIMAL     | [Decimal](../../sql-reference/data-types/decimal.md)         |
+| DATE, NEWDATE           | [Date](../../sql-reference/data-types/date.md)               |
+| DATETIME, TIMESTAMP     | [DateTime](../../sql-reference/data-types/datetime.md)       |
+| DATETIME2, TIMESTAMP2   | [DateTime64](../../sql-reference/data-types/datetime64.md)   |
+| YEAR                    | [UInt16](../../sql-reference/data-types/int-uint.md)         |
+| TIME                    | [Int64](../../sql-reference/data-types/int-uint.md)          |
+| ENUM                    | [Enum](../../sql-reference/data-types/enum.md)               |
+| STRING                  | [String](../../sql-reference/data-types/string.md)           |
+| VARCHAR, VAR_STRING     | [String](../../sql-reference/data-types/string.md)           |
+| BLOB                    | [String](../../sql-reference/data-types/string.md)           |
+| GEOMETRY                | [String](../../sql-reference/data-types/string.md)           |
+| BINARY                  | [FixedString](../../sql-reference/data-types/fixedstring.md) |
+| BIT                     | [UInt64](../../sql-reference/data-types/int-uint.md)         |
+| SET                     | [UInt64](../../sql-reference/data-types/int-uint.md)         |
+
+[Nullable](../../sql-reference/data-types/nullable.md) 已经被支持.
+
+MySQL中的Time 类型，会被ClickHouse转换成微秒来存储
+
+不支持其他类型。如果MySQL表包含此类类型的列，ClickHouse抛出异常"Unhandled data type"并停止复制。
+
+## 规范和推荐用法 {#specifics-and-recommendations}
+
+### 兼容性限制 {#compatibility-restrictions}
+
+除了数据类型的限制之外，还有一些限制与`MySQL`数据库相比有所不同，这应该在复制之前解决:
+
+- `MySQL` 中的每个表都应该包含 `PRIMARY KEY`。
+- 对于表的复制，那些包含 `ENUM` 字段值超出范围的行(在 `ENUM` 签名中指定)将不起作用。
+
+### DDL Queries {#ddl-queries}
+
+MySQL DDL 语句会被转换成对应的ClickHouse DDL 语句，比如： ([ALTER](../../sql-reference/statements/alter/index.md), [CREATE](../../sql-reference/statements/create/index.md), [DROP](../../sql-reference/statements/drop.md), [RENAME](../../sql-reference/statements/rename.md)). 如果ClickHouse 无法解析某些语句DDL 操作，则会跳过。
+
+
+### 数据复制 {#data-replication}
+
+MaterializedMySQL不支持直接的 `INSERT`， `DELETE` 和 `UPDATE` 查询。然而，它们在数据复制方面得到了支持:
+
+- MySQL `INSERT`查询被转换为`_sign=1`的INSERT查询。
+- MySQL `DELETE`查询被转换为`INSERT`，并且`_sign=-1`。
+- 如果主键被修改了，MySQL的 `UPDATE` 查询将被转换为 `INSERT` 带 `_sign=1`  和INSERT 带有_sign=-1;如果主键没有被修改，则转换为`INSERT`和`_sign=1`。
+
+###  MaterializedMySQL 数据表查询 {#select}
+
+`SELECT` 查询从 `MaterializedMySQL`表有一些细节:
+
+ - 如果在SELECT查询中没有指定`_version`，则 [FINAL](../../sql-reference/statements/select/from.md#select-from- FINAL)修饰符被使用，所以只有带有 `MAX(_version)`的行会返回每个主键值。
+
+ - 如果在SELECT查询中没有指定 `_sign`，则默认使用 `WHERE _sign=1 `。所以被删除的行不是
+包含在结果集中。
+
+ - 结果包括列注释，以防MySQL数据库表中存在这些列注释。
+
+### 索引转换 {#index-conversion}
+
+在ClickHouse表中，MySQL的 `PRIMARY KEY` 和 `INDEX` 子句被转换为 `ORDER BY` 元组。
+
+ClickHouse只有一个物理排序，由 `order by` 条件决定。要创建一个新的物理排序，请使用[materialized views](../../sql-reference/statements/create/view.md#materialized)。
+
+**注意**
+
+- `_sign=-1` 的行不会被物理地从表中删除。
+- 级联 `UPDATE/DELETE` 查询不支持 `MaterializedMySQL` 引擎，因为他们在 MySQL binlog中不可见的
+— 复制很容易被破坏。
+— 禁止对数据库和表进行手工操作。
+- `MaterializedMySQL` 受[optimize_on_insert](../../operations/settings/settings.md#optimize-on-insert)设置的影响。当MySQL服务器中的一个表发生变化时，数据会合并到 `MaterializedMySQL` 数据库中相应的表中。
+
+### 表重写 {#table-overrides}
+
+表覆盖可用于自定义ClickHouse DDL查询，从而允许您对应用程序进行模式优化。这对于控制分区特别有用，分区对MaterializedMySQL的整体性能非常重要。
+
+这些是你可以对MaterializedMySQL表重写的模式转换操作:
+
+ * 修改列类型。必须与原始类型兼容，否则复制将失败。例如，可以将`UInt32`列修改为`UInt64`，不能将 `String` 列修改为 `Array(String)`。
+ * 修改 [column TTL](../table-engines/mergetree-family/mergetree/#mergetree-column-ttl).
+ * 修改 [column compression codec](../../sql-reference/statements/create/table/#codecs).
+ * 增加 [ALIAS columns](../../sql-reference/statements/create/table/#alias).
+ * 增加 [skipping indexes](../table-engines/mergetree-family/mergetree/#table_engine-mergetree-data_skipping-indexes)
+ * 增加 [projections](../table-engines/mergetree-family/mergetree/#projections). 
+ 请注意，当使用 `SELECT ... FINAL ` (MaterializedMySQL默认是这样做的) 时，预测优化是被禁用的，所以这里是受限的， `INDEX ... TYPE hypothesis `[在v21.12的博客文章中描述]](https://clickhouse.com/blog/en/2021/clickhouse-v21.12-released/)可能在这种情况下更有用。
+ * 修改 [PARTITION BY](../table-engines/mergetree-family/custom-partitioning-key/)
+ * 修改 [ORDER BY](../table-engines/mergetree-family/mergetree/#mergetree-query-clauses)
+ * 修改 [PRIMARY KEY](../table-engines/mergetree-family/mergetree/#mergetree-query-clauses)
+ * 增加 [SAMPLE BY](../table-engines/mergetree-family/mergetree/#mergetree-query-clauses)
+ * 增加 [table TTL](../table-engines/mergetree-family/mergetree/#mergetree-query-clauses)
+
+```sql
+CREATE DATABASE db_name ENGINE = MaterializedMySQL(...)
+[SETTINGS ...]
+[TABLE OVERRIDE table_name (
+    [COLUMNS (
+        [col_name [datatype] [ALIAS expr] [CODEC(...)] [TTL expr], ...]
+        [INDEX index_name expr TYPE indextype[(...)] GRANULARITY val, ...]
+        [PROJECTION projection_name (SELECT <COLUMN LIST EXPR> [GROUP BY] [ORDER BY]), ...]
+    )]
+    [ORDER BY expr]
+    [PRIMARY KEY expr]
+    [PARTITION BY expr]
+    [SAMPLE BY expr]
+    [TTL expr]
+), ...]
+```
+
+示例:
+
+```sql
+CREATE DATABASE db_name ENGINE = MaterializedMySQL(...)
+TABLE OVERRIDE table1 (
+    COLUMNS (
+        userid UUID,
+        category LowCardinality(String),
+        timestamp DateTime CODEC(Delta, Default)
+    )
+    PARTITION BY toYear(timestamp)
+),
+TABLE OVERRIDE table2 (
+    COLUMNS (
+        client_ip String TTL created + INTERVAL 72 HOUR
+    )
+    SAMPLE BY ip_hash
+)
+```
+
+
+`COLUMNS`列表是稀疏的;根据指定修改现有列，添加额外的ALIAS列。不可能添加普通列或实体化列。具有不同类型的已修改列必须可从原始类型赋值。在执行`CREATE DATABASE` 查询时，目前还没有验证这个或类似的问题，因此需要格外小心。
+
+您可以为还不存在的表指定重写。
+
+!!! warning "警告"
+    如果使用时不小心，很容易用表重写中断复制。例如:
+
+    * 如果一个ALIAS列被添加了一个表覆盖，并且一个具有相同名称的列后来被添加到源MySQL表，在ClickHouse中转换后的ALTER table查询将失败并停止复制。
+    * 目前可以添加引用可空列的覆盖，而非空列是必需的，例如 `ORDER BY` 或 `PARTITION BY`。这将导致CREATE TABLE查询失败，也会导致复制停止。
+
+## 使用示例 {#examples-of-use}
+
+ MySQL 查询语句:
+
+``` sql
+mysql> CREATE DATABASE db;
+mysql> CREATE TABLE db.test (a INT PRIMARY KEY, b INT);
+mysql> INSERT INTO db.test VALUES (1, 11), (2, 22);
+mysql> DELETE FROM db.test WHERE a=1;
+mysql> ALTER TABLE db.test ADD COLUMN c VARCHAR(16);
+mysql> UPDATE db.test SET c='Wow!', b=222;
+mysql> SELECT * FROM test;
+```
+
+```text
+┌─a─┬───b─┬─c────┐
+│ 2 │ 222 │ Wow! │
+└───┴─────┴──────┘
+```
+
+ClickHouse中的数据库，与MySQL服务器交换数据:
+
+创建的数据库和表:
+
+``` sql
+CREATE DATABASE mysql ENGINE = MaterializedMySQL('localhost:3306', 'db', 'user', '***');
+SHOW TABLES FROM mysql;
+```
+
+``` text
+┌─name─┐
+│ test │
+└──────┘
+```
+
+数据插入之后：
+
+``` sql
+SELECT * FROM mysql.test;
+```
+
+``` text
+┌─a─┬──b─┐
+│ 1 │ 11 │
+│ 2 │ 22 │
+└───┴────┘
+```
+
+删除数据后，添加列并更新:
+
+``` sql
+SELECT * FROM mysql.test;
+```
+
+``` text
+┌─a─┬───b─┬─c────┐
+│ 2 │ 222 │ Wow! │
+└───┴─────┴──────┘
+```
+
+[来源文章](https://clickhouse.com/docs/en/engines/database-engines/materialized-mysql/) <!--hide-->
--- a/docs/zh/engines/database-engines/postgresql.md
+++ b/docs/zh/engines/database-engines/postgresql.md
@ -24,6 +24,7 @@ ENGINE = PostgreSQL('host:port', 'database', 'user', 'password'[, `use_table_cac
 -   `database` — 远程数据库名次
 -   `user` — PostgreSQL用户名称
 -   `password` — PostgreSQL用户密码
+-   `schema` - PostgreSQL 模式
 -   `use_table_cache` —  定义数据库表结构是否已缓存或不进行。可选的。默认值： `0`.

 ## 支持的数据类型 {#data_types-support}
--- a/docs/zh/engines/database-engines/replicated.md
+++ b/docs/zh/engines/database-engines/replicated.md
@ -31,6 +31,7 @@ CREATE DATABASE testdb ENGINE = Replicated('zoo_path', 'shard_name', 'replica_na

 当创建数据库的新副本时，该副本会自己创建表。如果副本已经不可用很长一段时间，并且已经滞后于复制日志-它用ZooKeeper中的当前元数据检查它的本地元数据，将带有数据的额外表移动到一个单独的非复制数据库(以免意外地删除任何多余的东西)，创建缺失的表，如果表名已经被重命名，则更新表名。数据在`ReplicatedMergeTree`级别被复制，也就是说，如果表没有被复制，数据将不会被复制(数据库只负责元数据)。

+允许[`ALTER TABLE ATTACH|FETCH|DROP|DROP DETACHED|DETACH PARTITION|PART`](../../sql-reference/statements/alter/partition.md)查询，但不允许复制。数据库引擎将只向当前副本添加/获取/删除分区/部件。但是，如果表本身使用了Replicated表引擎，那么数据将在使用`ATTACH`后被复制。
 ## 使用示例 {#usage-example}

 创建三台主机的集群:
--- a/docs/zh/operations/system-tables/query_thread_log.md
+++ b/docs/zh/operations/system-tables/query_thread_log.md
@ -1,67 +1,62 @@
---
-machine_translated: true
-machine_translated_rev: 5decc73b5dc60054f19087d3690c4eb99446a6c3
---
-
 # 系统。query_thread_log {#system_tables-query_thread_log}

 包含有关执行查询的线程的信息，例如，线程名称、线程开始时间、查询处理的持续时间。

-开始记录:
+开启日志功能:

-1.  在配置参数 [query_thread_log](../../operations/server-configuration-parameters/settings.md#server_configuration_parameters-query_thread_log) 科。
-2.  设置 [log_query_threads](../../operations/settings/settings.md#settings-log-query-threads) 到1。
+1.  在配置参数 [query_thread_log](../../operations/server-configuration-parameters/settings.md#server_configuration_parameters-query_thread_log) 部分。
+2.  设置 [log_query_threads](../../operations/settings/settings.md#settings-log-query-threads) 为1。

-数据的冲洗周期设置在 `flush_interval_milliseconds` 的参数 [query_thread_log](../../operations/server-configuration-parameters/settings.md#server_configuration_parameters-query_thread_log) 服务器设置部分。 要强制冲洗，请使用 [SYSTEM FLUSH LOGS](../../sql-reference/statements/system.md#query_language-system-flush_logs) 查询。
+数据从缓存写入数据表周期时间参数 `flush_interval_milliseconds` 位于 [query_thread_log](../../operations/server-configuration-parameters/settings.md#server_configuration_parameters-query_thread_log) 服务器设置部分。如果需要强制从缓存写入数据表，请使用 [SYSTEM FLUSH LOGS](../../sql-reference/statements/system.md#query_language-system-flush_logs) 查询请求。

-ClickHouse不会自动从表中删除数据。 看 [导言](../../operations/system-tables/index.md#system-tables-introduction) 欲了解更多详情。
+ClickHouse不会自动从表中删除数据。 欲了解更多详情，请参照 [介绍](../../operations/system-tables/index.md#system-tables-introduction)。

 列:

-   `event_date` ([日期](../../sql-reference/data-types/date.md)) — The date when the thread has finished execution of the query.
-   `event_time` ([日期时间](../../sql-reference/data-types/datetime.md)) — The date and time when the thread has finished execution of the query.
-   `query_start_time` ([日期时间](../../sql-reference/data-types/datetime.md)) — Start time of query execution.
-   `query_duration_ms` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — Duration of query execution.
-   `read_rows` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — Number of read rows.
-   `read_bytes` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — Number of read bytes.
-   `written_rows` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — For `INSERT` 查询，写入的行数。 对于其他查询，列值为0。
-   `written_bytes` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — For `INSERT` 查询时，写入的字节数。 对于其他查询，列值为0。
-   `memory_usage` ([Int64](../../sql-reference/data-types/int-uint.md)) — The difference between the amount of allocated and freed memory in context of this thread.
-   `peak_memory_usage` ([Int64](../../sql-reference/data-types/int-uint.md)) — The maximum difference between the amount of allocated and freed memory in context of this thread.
-   `thread_name` ([字符串](../../sql-reference/data-types/string.md)) — Name of the thread.
-   `thread_number` ([UInt32](../../sql-reference/data-types/int-uint.md)) — Internal thread ID.
-   `thread_id` ([Int32](../../sql-reference/data-types/int-uint.md)) — thread ID.
-   `master_thread_id` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — OS initial ID of initial thread.
-   `query` ([字符串](../../sql-reference/data-types/string.md)) — Query string.
-   `is_initial_query` ([UInt8](../../sql-reference/data-types/int-uint.md#uint-ranges)) — Query type. Possible values:
-    -   1 — Query was initiated by the client.
-    -   0 — Query was initiated by another query for distributed query execution.
-   `user` ([字符串](../../sql-reference/data-types/string.md)) — Name of the user who initiated the current query.
-   `query_id` ([字符串](../../sql-reference/data-types/string.md)) — ID of the query.
-   `address` ([IPv6](../../sql-reference/data-types/domains/ipv6.md)) — IP address that was used to make the query.
-   `port` ([UInt16](../../sql-reference/data-types/int-uint.md#uint-ranges)) — The client port that was used to make the query.
-   `initial_user` ([字符串](../../sql-reference/data-types/string.md)) — Name of the user who ran the initial query (for distributed query execution).
-   `initial_query_id` ([字符串](../../sql-reference/data-types/string.md)) — ID of the initial query (for distributed query execution).
-   `initial_address` ([IPv6](../../sql-reference/data-types/domains/ipv6.md)) — IP address that the parent query was launched from.
-   `initial_port` ([UInt16](../../sql-reference/data-types/int-uint.md#uint-ranges)) — The client port that was used to make the parent query.
-   `interface` ([UInt8](../../sql-reference/data-types/int-uint.md#uint-ranges)) — Interface that the query was initiated from. Possible values:
+-   `event_date` ([日期](../../sql-reference/data-types/date.md)) — 该查询线程执行完成的日期。
+-   `event_time` ([日期时间](../../sql-reference/data-types/datetime.md)) — 该查询线程执行完成的时间。
+-   `query_start_time` ([日期时间](../../sql-reference/data-types/datetime.md)) — 查询的开始时间。
+-   `query_duration_ms` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — 查询执行持续的时间。
+-   `read_rows` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — 读取的行数。
+-   `read_bytes` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — 读取的字节数。
+-   `written_rows` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — 对于 `INSERT` 查询，写入的行数。 对于其他查询，为0。
+-   `written_bytes` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — 对于 `INSERT` 查询，写入的字节数。 对于其他查询，为0。
+-   `memory_usage` ([Int64](../../sql-reference/data-types/int-uint.md)) — 在线程上下文，分配的内存和空闲内存之差。
+-   `peak_memory_usage` ([Int64](../../sql-reference/data-types/int-uint.md)) — 在线程上下文，分配的内存和空闲内存之差的最大值。
+-   `thread_name` ([字符串](../../sql-reference/data-types/string.md)) — 线程名。
+-   `thread_number` ([UInt32](../../sql-reference/data-types/int-uint.md)) — 内部线程ID。
+-   `thread_id` ([Int32](../../sql-reference/data-types/int-uint.md)) — 线程ID。
+-   `master_thread_id` ([UInt64](../../sql-reference/data-types/int-uint.md#uint-ranges)) — OS初始线程的初始ID。
+-   `query` ([字符串](../../sql-reference/data-types/string.md)) — 查询语句。
+-   `is_initial_query` ([UInt8](../../sql-reference/data-types/int-uint.md#uint-ranges)) — 查询类型，可能的值：
+    -   1 — 由用户发起的查询。
+    -   0 — 由其他查询发起的分布式查询。
+-   `user` ([字符串](../../sql-reference/data-types/string.md)) — 发起查询的用户名。
+-   `query_id` ([字符串](../../sql-reference/data-types/string.md)) — 查询的ID。
+-   `address` ([IPv6](../../sql-reference/data-types/domains/ipv6.md)) — 发起查询的IP地址。
+-   `port` ([UInt16](../../sql-reference/data-types/int-uint.md#uint-ranges)) — 发起查询的端口。
+-   `initial_user` ([字符串](../../sql-reference/data-types/string.md)) — 首次发起查询的用户名（对于分布式查询）。
+-   `initial_query_id` ([字符串](../../sql-reference/data-types/string.md)) — 首次发起查询的ID（对于分布式查询）。
+-   `initial_address` ([IPv6](../../sql-reference/data-types/domains/ipv6.md)) — 发起该查询的父查询IP地址。
+-   `initial_port` ([UInt16](../../sql-reference/data-types/int-uint.md#uint-ranges)) — 发起该查询的父查询端口。
+-   `interface` ([UInt8](../../sql-reference/data-types/int-uint.md#uint-ranges)) — 发起查询的界面，可能的值:
    -   1 — TCP.
    -   2 — HTTP.
-   `os_user` ([字符串](../../sql-reference/data-types/string.md)) — OS's username who runs [ﾂ环板clientｮﾂ嘉ｯﾂ偲](../../interfaces/cli.md).
-   `client_hostname` ([字符串](../../sql-reference/data-types/string.md)) — Hostname of the client machine where the [ﾂ环板clientｮﾂ嘉ｯﾂ偲](../../interfaces/cli.md) 或者运行另一个TCP客户端。
-   `client_name` ([字符串](../../sql-reference/data-types/string.md)) — The [ﾂ环板clientｮﾂ嘉ｯﾂ偲](../../interfaces/cli.md) 或另一个TCP客户端名称。
-   `client_revision` ([UInt32](../../sql-reference/data-types/int-uint.md)) — Revision of the [ﾂ环板clientｮﾂ嘉ｯﾂ偲](../../interfaces/cli.md) 或另一个TCP客户端。
-   `client_version_major` ([UInt32](../../sql-reference/data-types/int-uint.md)) — Major version of the [ﾂ环板clientｮﾂ嘉ｯﾂ偲](../../interfaces/cli.md) 或另一个TCP客户端。
-   `client_version_minor` ([UInt32](../../sql-reference/data-types/int-uint.md)) — Minor version of the [ﾂ环板clientｮﾂ嘉ｯﾂ偲](../../interfaces/cli.md) 或另一个TCP客户端。
-   `client_version_patch` ([UInt32](../../sql-reference/data-types/int-uint.md)) — Patch component of the [ﾂ环板clientｮﾂ嘉ｯﾂ偲](../../interfaces/cli.md) 或另一个TCP客户端版本。
-   `http_method` ([UInt8](../../sql-reference/data-types/int-uint.md#uint-ranges)) — HTTP method that initiated the query. Possible values:
-    -   0 — The query was launched from the TCP interface.
+-   `os_user` ([字符串](../../sql-reference/data-types/string.md)) — 使用 [clickhouse-client](../../interfaces/cli.md) 的系统用户名。
+-   `client_hostname` ([字符串](../../sql-reference/data-types/string.md)) — 运行 [clickhouse-client](../../interfaces/cli.md) 或另一个TCP客户端的主机名。
+-   `client_name` ([字符串](../../sql-reference/data-types/string.md)) — [clickhouse-client](../../interfaces/cli.md) 或另一个TCP客户端的名称。
+-   `client_revision` ([UInt32](../../sql-reference/data-types/int-uint.md)) — [clickhouse-client](../../interfaces/cli.md) 或另一个TCP客户端的修订号。
+-   `client_version_major` ([UInt32](../../sql-reference/data-types/int-uint.md)) — [clickhouse-client](../../interfaces/cli.md) 或另一个TCP客户端的主版本号。
+-   `client_version_minor` ([UInt32](../../sql-reference/data-types/int-uint.md)) — [clickhouse-client](../../interfaces/cli.md) 或另一个TCP客户端的次版本号。
+-   `client_version_patch` ([UInt32](../../sql-reference/data-types/int-uint.md)) — [clickhouse-client](../../interfaces/cli.md) 或另一个TCP客户端的补丁版本号。
+-   `http_method` ([UInt8](../../sql-reference/data-types/int-uint.md#uint-ranges)) — 发起查询的HTTP方法，可能的值：
+    -   0 — 查询通过TCP界面发起。
    -   1 — `GET` 方法被使用。
    -   2 — `POST` 方法被使用。
-   `http_user_agent` ([字符串](../../sql-reference/data-types/string.md)) — The `UserAgent` http请求中传递的标头。
-   `quota_key` ([字符串](../../sql-reference/data-types/string.md)) — The “quota key” 在指定 [配额](../../operations/quotas.md) 设置（见 `keyed`).
-   `revision` ([UInt32](../../sql-reference/data-types/int-uint.md)) — ClickHouse revision.
-   `ProfileEvents` ([数组（字符串, UInt64)](../../sql-reference/data-types/array.md)) — Counters that measure different metrics for this thread. The description of them could be found in the table [系统。活动](#system_tables-events).
+-   `http_user_agent` ([字符串](../../sql-reference/data-types/string.md)) — `UserAgent` HTTP请求中传递的UA表头。
+-   `quota_key` ([字符串](../../sql-reference/data-types/string.md)) —  “quota key” 在 [配额](../../operations/quotas.md) 设置内（详见 `keyed`).
+-   `revision` ([UInt32](../../sql-reference/data-types/int-uint.md)) — ClickHouse 修订版本号.
+-   `ProfileEvents` ([数组（字符串, UInt64)](../../sql-reference/data-types/array.md)) — 对于该线程的多个指标计数器。这一项可以参考 [system.events](#system_tables-events).

 **示例**

@ -113,4 +108,5 @@ ProfileEvents:        {'Query':1,'SelectQuery':1,'ReadCompressedBytes':36,'Compr

 **另请参阅**

-   [系统。query_log](../../operations/system-tables/query_log.md#system_tables-query_log) — Description of the `query_log` 系统表，其中包含有关查询执行的公共信息。
+-   [system.query_log](../../operations/system-tables/query_log.md#system_tables-query_log) — `query_log` 系统表描述，其中包含有关查询执行的公共信息。
+-   [system.query_views_log](../../operations/system-tables/query_views_log.md#system_tables-query_views_log) — 这个表包含在查询线程中使用的各个视图的信息。
--- a/docs/zh/sql-reference/data-types/int-uint.md
+++ b/docs/zh/sql-reference/data-types/int-uint.md
@ -1,17 +1,41 @@
-# UInt8,UInt16,UInt32,UInt64,Int8,Int16,Int32,Int64 {#uint8-uint16-uint32-uint64-int8-int16-int32-int64}
+---
+toc_priority: 40
+toc_title: UInt8, UInt16, UInt32, UInt64, UInt128, UInt256, Int8, Int16, Int32, Int64, Int128, Int256
+---
+
+# UInt8, UInt16, UInt32, UInt64, UInt128, UInt256, Int8, Int16, Int32, Int64, Int128, Int256

 固定长度的整型，包括有符号整型或无符号整型。

+创建表时，可以为整数设置类型参数 (例如. `TINYINT(8)`, `SMALLINT(16)`, `INT(32)`, `BIGINT(64)`), 但 ClickHouse 会忽略它们.
+
+
 ## 整型范围 {#int-ranges}

-   Int8-\[-128:127\]
-   Int16-\[-32768:32767\]
-   Int32-\[-2147483648:2147483647\]
-   Int64-\[-9223372036854775808:9223372036854775807\]
+
+-   `Int8` — \[-128 : 127\]
+-   `Int16` — \[-32768 : 32767\]
+-   `Int32` — \[-2147483648 : 2147483647\]
+-   `Int64` — \[-9223372036854775808 : 9223372036854775807\]
+-   `Int128` — \[-170141183460469231731687303715884105728 : 170141183460469231731687303715884105727\]
+-   `Int256` — \[-57896044618658097711785492504343953926634992332820282019728792003956564819968 : 57896044618658097711785492504343953926634992332820282019728792003956564819967\]
+
+别名：
+
+-   `Int8` — `TINYINT`, `BOOL`, `BOOLEAN`, `INT1`.
+-   `Int16` — `SMALLINT`, `INT2`.
+-   `Int32` — `INT`, `INT4`, `INTEGER`.
+-   `Int64` — `BIGINT`.

 ## 无符号整型范围 {#uint-ranges}

-   UInt8-\[0:255\]
-   UInt16-\[0:65535\]
-   UInt32-\[0:4294967295\]
-   UInt64-\[0:18446744073709551615\]
+
+-   `UInt8` — \[0 : 255\]
+-   `UInt16` — \[0 : 65535\]
+-   `UInt32` — \[0 : 4294967295\]
+-   `UInt64` — \[0 : 18446744073709551615\]
+-   `UInt128` — \[0 : 340282366920938463463374607431768211455\]
+-   `UInt256` — \[0 : 115792089237316195423570985008687907853269984665640564039457584007913129639935\]
+
+
+[源文档](https://clickhouse.com/docs/en/data_types/int_uint/) <!--hide-->
--- a/docs/zh/whats-new/roadmap.md
+++ b/docs/zh/whats-new/roadmap.md
@ -5,6 +5,6 @@ toc_title: Roadmap

 # Roadmap {#roadmap}

-`2021年Roadmap`已公布供公开讨论查看[这里](https://github.com/ClickHouse/ClickHouse/issues/17623).
+`2022年Roadmap`已公布供公开讨论查看 [这里](https://github.com/ClickHouse/ClickHouse/issues/32513).

 {## [源文章](https://clickhouse.com/docs/en/roadmap/) ##}
--- a/programs/client/Client.cpp
+++ b/programs/client/Client.cpp
@ -481,48 +481,76 @@ catch (...)

 void Client::connect()
 {
-    connection_parameters = ConnectionParameters(config());
-
-    if (is_interactive)
-        std::cout << "Connecting to "
-                    << (!connection_parameters.default_database.empty() ? "database " + connection_parameters.default_database + " at "
-                                                                        : "")
-                    << connection_parameters.host << ":" << connection_parameters.port
-                    << (!connection_parameters.user.empty() ? " as user " + connection_parameters.user : "") << "." << std::endl;
+    UInt16 default_port = ConnectionParameters::getPortFromConfig(config());
+    connection_parameters = ConnectionParameters(config(), hosts_ports[0].host,
+                                                 hosts_ports[0].port.value_or(default_port));

    String server_name;
    UInt64 server_version_major = 0;
    UInt64 server_version_minor = 0;
    UInt64 server_version_patch = 0;

-    try
+    for (size_t attempted_address_index = 0; attempted_address_index < hosts_ports.size(); ++attempted_address_index)
    {
-        connection = Connection::createConnection(connection_parameters, global_context);
+        connection_parameters.host = hosts_ports[attempted_address_index].host;
+        connection_parameters.port = hosts_ports[attempted_address_index].port.value_or(default_port);

-        if (max_client_network_bandwidth)
+        if (is_interactive)
+            std::cout << "Connecting to "
+                      << (!connection_parameters.default_database.empty() ? "database " + connection_parameters.default_database + " at "
+                                                                          : "")
+                      << connection_parameters.host << ":" << connection_parameters.port
+                      << (!connection_parameters.user.empty() ? " as user " + connection_parameters.user : "") << "." << std::endl;
+
+        try
        {
-            ThrottlerPtr throttler = std::make_shared<Throttler>(max_client_network_bandwidth, 0, "");
-            connection->setThrottler(throttler);
-        }
+            connection = Connection::createConnection(connection_parameters, global_context);

-        connection->getServerVersion(
-            connection_parameters.timeouts, server_name, server_version_major, server_version_minor, server_version_patch, server_revision);
-    }
-    catch (const Exception & e)
-    {
-        /// It is typical when users install ClickHouse, type some password and instantly forget it.
-        if ((connection_parameters.user.empty() || connection_parameters.user == "default")
-            && e.code() == DB::ErrorCodes::AUTHENTICATION_FAILED)
+            if (max_client_network_bandwidth)
+            {
+                ThrottlerPtr throttler = std::make_shared<Throttler>(max_client_network_bandwidth, 0, "");
+                connection->setThrottler(throttler);
+            }
+
+            connection->getServerVersion(
+                connection_parameters.timeouts, server_name, server_version_major, server_version_minor, server_version_patch, server_revision);
+            config().setString("host", connection_parameters.host);
+            config().setInt("port", connection_parameters.port);
+            break;
+        }
+        catch (const Exception & e)
        {
-            std::cerr << std::endl
-                << "If you have installed ClickHouse and forgot password you can reset it in the configuration file." << std::endl
-                << "The password for default user is typically located at /etc/clickhouse-server/users.d/default-password.xml" << std::endl
-                << "and deleting this file will reset the password." << std::endl
-                << "See also /etc/clickhouse-server/users.xml on the server where ClickHouse is installed." << std::endl
-                << std::endl;
-        }
+            /// It is typical when users install ClickHouse, type some password and instantly forget it.
+            /// This problem can't be fixed with reconnection so it is not attempted
+            if ((connection_parameters.user.empty() || connection_parameters.user == "default")
+                && e.code() == DB::ErrorCodes::AUTHENTICATION_FAILED)
+            {
+                std::cerr << std::endl
+                          << "If you have installed ClickHouse and forgot password you can reset it in the configuration file." << std::endl
+                          << "The password for default user is typically located at /etc/clickhouse-server/users.d/default-password.xml" << std::endl
+                          << "and deleting this file will reset the password." << std::endl
+                          << "See also /etc/clickhouse-server/users.xml on the server where ClickHouse is installed." << std::endl
+                          << std::endl;
+                throw;
+            }
+            else
+            {
+                if (attempted_address_index == hosts_ports.size() - 1)
+                    throw;

-        throw;
+                if (is_interactive)
+                {
+                    std::cerr << "Connection attempt to database at "
+                              << connection_parameters.host << ":" << connection_parameters.port
+                              << " resulted in failure"
+                              << std::endl
+                              << getExceptionMessage(e, false)
+                              << std::endl
+                              << "Attempting connection to the next provided address"
+                              << std::endl;
+                }
+            }
+        }
    }

    server_version = toString(server_version_major) + "." + toString(server_version_minor) + "." + toString(server_version_patch);
@ -966,8 +994,11 @@ void Client::addOptions(OptionsDescription & options_description)
    /// Main commandline options related to client functionality and all parameters from Settings.
    options_description.main_description->add_options()
        ("config,c", po::value<std::string>(), "config-file path (another shorthand)")
-        ("host,h", po::value<std::string>()->default_value("localhost"), "server host")
-        ("port", po::value<int>()->default_value(9000), "server port")
+        ("host,h", po::value<std::vector<HostPort>>()->multitoken()->default_value({{"localhost"}}, "localhost"),
+         "list of server hosts with optionally assigned port to connect. List elements are separated by a space."
+         "Every list element looks like '<host>[:<port>]'. If port isn't assigned, connection is made by port from '--port' param"
+         "Example of usage: '-h host1:1 host2 host3:3'")
+        ("port", po::value<int>()->default_value(9000), "server port, which is default port for every host from '--host' param")
        ("secure,s", "Use TLS connection")
        ("user,u", po::value<std::string>()->default_value("default"), "user")
        /** If "--password [value]" is used but the value is omitted, the bad argument exception will be thrown.
@ -1074,8 +1105,8 @@ void Client::processOptions(const OptionsDescription & options_description,

    if (options.count("config"))
        config().setString("config-file", options["config"].as<std::string>());
-    if (options.count("host") && !options["host"].defaulted())
-        config().setString("host", options["host"].as<std::string>());
+    if (options.count("host"))
+        hosts_ports = options["host"].as<std::vector<HostPort>>();
    if (options.count("interleave-queries-file"))
        interleave_queries_files = options["interleave-queries-file"].as<std::vector<std::string>>();
    if (options.count("port") && !options["port"].defaulted())
--- a/programs/server/config.xml
+++ b/programs/server/config.xml
@ -217,13 +217,12 @@
        <!-- The following file is used only if ssl_require_client_auth=1 -->
        <ssl_ca_cert_file>/path/to/ssl_ca_cert_file</ssl_ca_cert_file>

-        <!-- Default compression algorithm (applied if client doesn't specify another algorithm, see result_compression in QueryInfo).
+        <!-- Default transport compression type (can be overridden by client, see the transport_compression_type field in QueryInfo).
             Supported algorithms: none, deflate, gzip, stream_gzip -->
-        <compression>deflate</compression>
+        <transport_compression_type>none</transport_compression_type>

-        <!-- Default compression level (applied if client doesn't specify another level, see result_compression in QueryInfo).
-             Supported levels: none, low, medium, high -->
-        <compression_level>medium</compression_level>
+        <!-- Default transport compression level. Supported levels: 0..3 -->
+        <transport_compression_level>0</transport_compression_level>

        <!-- Send/receive message size limits in bytes. -1 means unlimited -->
        <max_send_message_size>-1</max_send_message_size>
--- a/src/Access/Common/AccessType.h
+++ b/src/Access/Common/AccessType.h
@ -86,7 +86,7 @@ enum class AccessType
    M(CREATE_DICTIONARY, "", DICTIONARY, CREATE) /* allows to execute {CREATE|ATTACH} DICTIONARY */\
    M(CREATE_TEMPORARY_TABLE, "", GLOBAL, CREATE) /* allows to create and manipulate temporary tables;
                                                     implicitly enabled by the grant CREATE_TABLE on any table */ \
-    M(CREATE_FUNCTION, "", DATABASE, CREATE) /* allows to execute CREATE FUNCTION */ \
+    M(CREATE_FUNCTION, "", GLOBAL, CREATE) /* allows to execute CREATE FUNCTION */ \
    M(CREATE, "", GROUP, ALL) /* allows to execute {CREATE|ATTACH} */ \
    \
    M(DROP_DATABASE, "", DATABASE, DROP) /* allows to execute {DROP|DETACH} DATABASE */\
@ -94,7 +94,7 @@ enum class AccessType
    M(DROP_VIEW, "", VIEW, DROP) /* allows to execute {DROP|DETACH} TABLE for views;
                                    implicitly enabled by the grant DROP_TABLE */\
    M(DROP_DICTIONARY, "", DICTIONARY, DROP) /* allows to execute {DROP|DETACH} DICTIONARY */\
-    M(DROP_FUNCTION, "", DATABASE, DROP) /* allows to execute DROP FUNCTION */\
+    M(DROP_FUNCTION, "", GLOBAL, DROP) /* allows to execute DROP FUNCTION */\
    M(DROP, "", GROUP, ALL) /* allows to execute {DROP|DETACH} */\
    \
    M(TRUNCATE, "TRUNCATE TABLE", TABLE, ALL) \
@ -113,9 +113,9 @@ enum class AccessType
    M(ALTER_ROLE, "", GLOBAL, ACCESS_MANAGEMENT) \
    M(DROP_ROLE, "", GLOBAL, ACCESS_MANAGEMENT) \
    M(ROLE_ADMIN, "", GLOBAL, ACCESS_MANAGEMENT) /* allows to grant and revoke the roles which are not granted to the current user with admin option */\
-    M(CREATE_ROW_POLICY, "CREATE POLICY", GLOBAL, ACCESS_MANAGEMENT) \
-    M(ALTER_ROW_POLICY, "ALTER POLICY", GLOBAL, ACCESS_MANAGEMENT) \
-    M(DROP_ROW_POLICY, "DROP POLICY", GLOBAL, ACCESS_MANAGEMENT) \
+    M(CREATE_ROW_POLICY, "CREATE POLICY", TABLE, ACCESS_MANAGEMENT) \
+    M(ALTER_ROW_POLICY, "ALTER POLICY", TABLE, ACCESS_MANAGEMENT) \
+    M(DROP_ROW_POLICY, "DROP POLICY", TABLE, ACCESS_MANAGEMENT) \
    M(CREATE_QUOTA, "", GLOBAL, ACCESS_MANAGEMENT) \
    M(ALTER_QUOTA, "", GLOBAL, ACCESS_MANAGEMENT) \
    M(DROP_QUOTA, "", GLOBAL, ACCESS_MANAGEMENT) \
@ -124,7 +124,7 @@ enum class AccessType
    M(DROP_SETTINGS_PROFILE, "DROP PROFILE", GLOBAL, ACCESS_MANAGEMENT) \
    M(SHOW_USERS, "SHOW CREATE USER", GLOBAL, SHOW_ACCESS) \
    M(SHOW_ROLES, "SHOW CREATE ROLE", GLOBAL, SHOW_ACCESS) \
-    M(SHOW_ROW_POLICIES, "SHOW POLICIES, SHOW CREATE ROW POLICY, SHOW CREATE POLICY", GLOBAL, SHOW_ACCESS) \
+    M(SHOW_ROW_POLICIES, "SHOW POLICIES, SHOW CREATE ROW POLICY, SHOW CREATE POLICY", TABLE, SHOW_ACCESS) \
    M(SHOW_QUOTAS, "SHOW CREATE QUOTA", GLOBAL, SHOW_ACCESS) \
    M(SHOW_SETTINGS_PROFILES, "SHOW PROFILES, SHOW CREATE SETTINGS PROFILE, SHOW CREATE PROFILE", GLOBAL, SHOW_ACCESS) \
    M(SHOW_ACCESS, "", GROUP, ACCESS_MANAGEMENT) \
--- a/src/Access/ContextAccess.cpp
+++ b/src/Access/ContextAccess.cpp
@ -425,6 +425,7 @@ bool ContextAccess::checkAccessImplHelper(const AccessFlags & flags, const Args
            | AccessType::TRUNCATE;

        const AccessFlags dictionary_ddl = AccessType::CREATE_DICTIONARY | AccessType::DROP_DICTIONARY;
+        const AccessFlags function_ddl = AccessType::CREATE_FUNCTION | AccessType::DROP_FUNCTION;
        const AccessFlags table_and_dictionary_ddl = table_ddl | dictionary_ddl;
        const AccessFlags write_table_access = AccessType::INSERT | AccessType::OPTIMIZE;
        const AccessFlags write_dcl_access = AccessType::ACCESS_MANAGEMENT - AccessType::SHOW_ACCESS;
@ -432,7 +433,7 @@ bool ContextAccess::checkAccessImplHelper(const AccessFlags & flags, const Args
        const AccessFlags not_readonly_flags = write_table_access | table_and_dictionary_ddl | write_dcl_access | AccessType::SYSTEM | AccessType::KILL_QUERY;
        const AccessFlags not_readonly_1_flags = AccessType::CREATE_TEMPORARY_TABLE;

-        const AccessFlags ddl_flags = table_ddl | dictionary_ddl;
+        const AccessFlags ddl_flags = table_ddl | dictionary_ddl | function_ddl;
        const AccessFlags introspection_flags = AccessType::INTROSPECTION;
    };
    static const PrecalculatedFlags precalc;
--- a/src/Access/tests/gtest_access_rights_ops.cpp
+++ b/src/Access/tests/gtest_access_rights_ops.cpp
@ -45,7 +45,15 @@ TEST(AccessRights, Union)
    lhs.grant(AccessType::INSERT);
    rhs.grant(AccessType::ALL, "db1");
    lhs.makeUnion(rhs);
-    ASSERT_EQ(lhs.toString(), "GRANT INSERT ON *.*, GRANT SHOW, SELECT, ALTER, CREATE DATABASE, CREATE TABLE, CREATE VIEW, CREATE DICTIONARY, CREATE FUNCTION, DROP, TRUNCATE, OPTIMIZE, SYSTEM MERGES, SYSTEM TTL MERGES, SYSTEM FETCHES, SYSTEM MOVES, SYSTEM SENDS, SYSTEM REPLICATION QUEUES, SYSTEM DROP REPLICA, SYSTEM SYNC REPLICA, SYSTEM RESTART REPLICA, SYSTEM RESTORE REPLICA, SYSTEM FLUSH DISTRIBUTED, dictGet ON db1.*");
+    ASSERT_EQ(lhs.toString(),
+              "GRANT INSERT ON *.*, "
+              "GRANT SHOW, SELECT, ALTER, CREATE DATABASE, CREATE TABLE, CREATE VIEW, "
+              "CREATE DICTIONARY, DROP DATABASE, DROP TABLE, DROP VIEW, DROP DICTIONARY, "
+              "TRUNCATE, OPTIMIZE, CREATE ROW POLICY, ALTER ROW POLICY, DROP ROW POLICY, "
+              "SHOW ROW POLICIES, SYSTEM MERGES, SYSTEM TTL MERGES, SYSTEM FETCHES, "
+              "SYSTEM MOVES, SYSTEM SENDS, SYSTEM REPLICATION QUEUES, "
+              "SYSTEM DROP REPLICA, SYSTEM SYNC REPLICA, SYSTEM RESTART REPLICA, "
+              "SYSTEM RESTORE REPLICA, SYSTEM FLUSH DISTRIBUTED, dictGet ON db1.*");
 }


--- a/src/AggregateFunctions/ReservoirSampler.h
+++ b/src/AggregateFunctions/ReservoirSampler.h
@ -239,6 +239,7 @@ private:

    UInt64 genRandom(size_t lim)
    {
+        assert(lim > 0);
        /// With a large number of values, we will generate random numbers several times slower.
        if (lim <= static_cast<UInt64>(rng.max()))
            return static_cast<UInt32>(rng()) % static_cast<UInt32>(lim);
--- a/src/Client/ClientBase.cpp
+++ b/src/Client/ClientBase.cpp
@ -1317,7 +1317,7 @@ void ClientBase::processParsedSingleQuery(const String & full_query, const Strin
        if (insert && insert->select)
            insert->tryFindInputFunction(input_function);

-        bool is_async_insert = global_context->getSettings().async_insert && insert && insert->hasInlinedData();
+        bool is_async_insert = global_context->getSettingsRef().async_insert && insert && insert->hasInlinedData();

        /// INSERT query for which data transfer is needed (not an INSERT SELECT or input()) is processed separately.
        if (insert && (!insert->select || input_function) && !insert->watch && !is_async_insert)
@ -1929,7 +1929,7 @@ void ClientBase::init(int argc, char ** argv)

    /// Output of help message.
    if (options.count("help")
-        || (options.count("host") && options["host"].as<std::string>() == "elp")) /// If user writes -help instead of --help.
+        || (options.count("host") && options["host"].as<std::vector<HostPort>>()[0].host == "elp")) /// If user writes -help instead of --help.
    {
        printHelpMessage(options_description);
        exit(0);
--- a/src/Client/ClientBase.h
+++ b/src/Client/ClientBase.h
@ -5,6 +5,7 @@
 #include <Common/InterruptListener.h>
 #include <Common/ShellCommand.h>
 #include <Common/Stopwatch.h>
+#include <Common/DNSResolver.h>
 #include <Core/ExternalTable.h>
 #include <Poco/Util/Application.h>
 #include <Interpreters/Context.h>
@ -243,6 +244,25 @@ protected:
    } profile_events;

    QueryProcessingStage::Enum query_processing_stage;
+
+    struct HostPort
+    {
+        String host;
+        std::optional<UInt16> port{};
+        friend std::istream & operator>>(std::istream & in, HostPort & hostPort)
+        {
+            String host_with_port;
+            in >> host_with_port;
+            DB::DNSResolver & resolver = DB::DNSResolver::instance();
+            std::pair<Poco::Net::IPAddress, std::optional<UInt16>>
+                host_and_port = resolver.resolveHostOrAddress(host_with_port);
+            hostPort.host = host_and_port.first.toString();
+            hostPort.port = host_and_port.second;
+
+            return in;
+        }
+    };
+    std::vector<HostPort> hosts_ports{};
 };

 }
--- a/src/Client/ConnectionParameters.cpp
+++ b/src/Client/ConnectionParameters.cpp
@ -23,15 +23,13 @@ namespace ErrorCodes
    extern const int BAD_ARGUMENTS;
 }

-ConnectionParameters::ConnectionParameters(const Poco::Util::AbstractConfiguration & config)
+ConnectionParameters::ConnectionParameters(const Poco::Util::AbstractConfiguration & config,
+                                           std::string connection_host,
+                                           int connection_port) : host(connection_host), port(connection_port)
 {
    bool is_secure = config.getBool("secure", false);
    security = is_secure ? Protocol::Secure::Enable : Protocol::Secure::Disable;

-    host = config.getString("host", "localhost");
-    port = config.getInt(
-        "port", config.getInt(is_secure ? "tcp_port_secure" : "tcp_port", is_secure ? DBMS_DEFAULT_SECURE_PORT : DBMS_DEFAULT_PORT));
-
    default_database = config.getString("database", "");

    /// changed the default value to "default" to fix the issue when the user in the prompt is blank
@ -61,12 +59,25 @@ ConnectionParameters::ConnectionParameters(const Poco::Util::AbstractConfigurati

    /// By default compression is disabled if address looks like localhost.
    compression = config.getBool("compression", !isLocalAddress(DNSResolver::instance().resolveHost(host)))
-        ? Protocol::Compression::Enable : Protocol::Compression::Disable;
+                  ? Protocol::Compression::Enable : Protocol::Compression::Disable;

    timeouts = ConnectionTimeouts(
-        Poco::Timespan(config.getInt("connect_timeout", DBMS_DEFAULT_CONNECT_TIMEOUT_SEC), 0),
-        Poco::Timespan(config.getInt("send_timeout", DBMS_DEFAULT_SEND_TIMEOUT_SEC), 0),
-        Poco::Timespan(config.getInt("receive_timeout", DBMS_DEFAULT_RECEIVE_TIMEOUT_SEC), 0),
-        Poco::Timespan(config.getInt("tcp_keep_alive_timeout", 0), 0));
+            Poco::Timespan(config.getInt("connect_timeout", DBMS_DEFAULT_CONNECT_TIMEOUT_SEC), 0),
+            Poco::Timespan(config.getInt("send_timeout", DBMS_DEFAULT_SEND_TIMEOUT_SEC), 0),
+            Poco::Timespan(config.getInt("receive_timeout", DBMS_DEFAULT_RECEIVE_TIMEOUT_SEC), 0),
+            Poco::Timespan(config.getInt("tcp_keep_alive_timeout", 0), 0));
+}
+
+ConnectionParameters::ConnectionParameters(const Poco::Util::AbstractConfiguration & config)
+    : ConnectionParameters(config, config.getString("host", "localhost"), getPortFromConfig(config))
+{
+}
+
+int ConnectionParameters::getPortFromConfig(const Poco::Util::AbstractConfiguration & config)
+{
+    bool is_secure = config.getBool("secure", false);
+    return config.getInt("port",
+        config.getInt(is_secure ? "tcp_port_secure" : "tcp_port",
+            is_secure ? DBMS_DEFAULT_SECURE_PORT : DBMS_DEFAULT_PORT));
 }
 }
--- a/src/Client/ConnectionParameters.h
+++ b/src/Client/ConnectionParameters.h
@ -24,6 +24,9 @@ struct ConnectionParameters

    ConnectionParameters() {}
    ConnectionParameters(const Poco::Util::AbstractConfiguration & config);
+    ConnectionParameters(const Poco::Util::AbstractConfiguration & config, std::string host, int port);
+
+    static int getPortFromConfig(const Poco::Util::AbstractConfiguration & config);
 };

 }
--- a/src/Columns/ColumnArray.cpp
+++ b/src/Columns/ColumnArray.cpp
@ -50,12 +50,12 @@ ColumnArray::ColumnArray(MutableColumnPtr && nested_column, MutableColumnPtr &&
    if (!offsets_concrete)
        throw Exception("offsets_column must be a ColumnUInt64", ErrorCodes::LOGICAL_ERROR);

-    if (!offsets_concrete->empty() && nested_column)
+    if (!offsets_concrete->empty() && data)
    {
        Offset last_offset = offsets_concrete->getData().back();

        /// This will also prevent possible overflow in offset.
-        if (nested_column->size() != last_offset)
+        if (data->size() != last_offset)
            throw Exception("offsets_column has data inconsistent with nested_column", ErrorCodes::LOGICAL_ERROR);
    }

--- a/src/Common/ArenaUtils.h
+++ b/src/Common/ArenaUtils.h
@ -0,0 +1,20 @@
+#pragma once
+
+#include <string.h>
+#include <string>
+#include <base/StringRef.h>
+
+/** Copy string value into Arena.
+  * Arena should support method:
+  * char * alloc(size_t size).
+  */
+template <typename Arena>
+inline StringRef copyStringInArena(Arena & arena, StringRef value)
+{
+    size_t key_size = value.size;
+    char * place_for_key = arena.alloc(key_size);
+    memcpy(reinterpret_cast<void *>(place_for_key), reinterpret_cast<const void *>(value.data), key_size);
+    StringRef result{place_for_key, key_size};
+
+    return result;
+}
--- a/src/Common/ColumnsHashing.h
+++ b/src/Common/ColumnsHashing.h
@ -387,47 +387,52 @@ struct HashMethodSingleLowCardinalityColumn : public SingleColumnMethod
    }

    template <typename Data>
-    ALWAYS_INLINE FindResult findFromRow(Data & data, size_t row_, Arena & pool)
+    ALWAYS_INLINE FindResult findKey(Data & data, size_t row_, Arena & pool)
    {
        size_t row = getIndexAt(row_);

        if (is_nullable && row == 0)
        {
            if constexpr (has_mapped)
-                return FindResult(data.hasNullKeyData() ? &data.getNullKeyData() : nullptr, data.hasNullKeyData());
+                return FindResult(data.hasNullKeyData() ? &data.getNullKeyData() : nullptr, data.hasNullKeyData(), 0);
            else
-                return FindResult(data.hasNullKeyData());
+                return FindResult(data.hasNullKeyData(), 0);
        }

        if (visit_cache[row] != VisitValue::Empty)
        {
            if constexpr (has_mapped)
-                return FindResult(&mapped_cache[row], visit_cache[row] == VisitValue::Found);
+                return FindResult(&mapped_cache[row], visit_cache[row] == VisitValue::Found, 0);
            else
-                return FindResult(visit_cache[row] == VisitValue::Found);
+                return FindResult(visit_cache[row] == VisitValue::Found, 0);
        }

        auto key_holder = getKeyHolder(row_, pool);

-        typename Data::iterator it;
+        typename Data::LookupResult it;
        if (saved_hash)
-            it = data.find(*key_holder, saved_hash[row]);
+            it = data.find(keyHolderGetKey(key_holder), saved_hash[row]);
        else
-            it = data.find(*key_holder);
+            it = data.find(keyHolderGetKey(key_holder));

-        bool found = it != data.end();
+        bool found = it;
        visit_cache[row] = found ? VisitValue::Found : VisitValue::NotFound;

        if constexpr (has_mapped)
        {
            if (found)
-                mapped_cache[row] = it->second;
+                mapped_cache[row] = it->getMapped();
        }

+        size_t offset = 0;
+
+        if constexpr (FindResult::has_offset)
+            offset = found ? data.offsetInternal(it) : 0;
+
        if constexpr (has_mapped)
-            return FindResult(&mapped_cache[row], found);
+            return FindResult(&mapped_cache[row], found, offset);
        else
-            return FindResult(found);
+            return FindResult(found, offset);
    }

    template <typename Data>
--- a/src/Common/DNSResolver.cpp
+++ b/src/Common/DNSResolver.cpp
@ -202,6 +202,45 @@ Poco::Net::SocketAddress DNSResolver::resolveAddress(const std::string & host, U
    return  Poco::Net::SocketAddress(impl->cache_host(host).front(), port);
 }

+std::pair<Poco::Net::IPAddress, std::optional<UInt16>> DNSResolver::resolveHostOrAddress(const std::string & host_and_port)
+{
+    Poco::Net::IPAddress ip;
+
+    size_t number_of_colons = std::count(host_and_port.begin(), host_and_port.end(), ':');
+    if (number_of_colons > 1)
+    {
+        /// IPv6 host
+        if (host_and_port.starts_with('['))
+        {
+            size_t close_bracket_pos = host_and_port.find(']');
+            assert(close_bracket_pos != std::string::npos);
+            ip = resolveHost(host_and_port.substr(0, close_bracket_pos));
+
+            if (close_bracket_pos == host_and_port.size() - 1)
+                return {ip, std::nullopt};
+            if (host_and_port[close_bracket_pos + 1] != ':')
+                throw Exception("Missing delimiter between host and port", ErrorCodes::BAD_ARGUMENTS);
+
+            unsigned int port;
+            if (!Poco::NumberParser::tryParseUnsigned(host_and_port.substr(close_bracket_pos + 2), port))
+                throw Exception("Port must be numeric", ErrorCodes::BAD_ARGUMENTS);
+            if (port > 0xFFFF)
+                throw Exception("Port must be less 0xFFFF", ErrorCodes::BAD_ARGUMENTS);
+            return {ip, port};
+        }
+        return {resolveHost(host_and_port), std::nullopt};
+    }
+    else if (number_of_colons == 1)
+    {
+        /// IPv4 host with port
+        Poco::Net::SocketAddress socket = resolveAddress(host_and_port);
+        return {socket.host(), socket.port()};
+    }
+
+    /// IPv4 host
+    return {resolveHost(host_and_port), std::nullopt};
+}
+
 String DNSResolver::reverseResolve(const Poco::Net::IPAddress & address)
 {
    if (impl->disable_cache)
--- a/src/Common/DNSResolver.h
+++ b/src/Common/DNSResolver.h
@ -34,6 +34,10 @@ public:

    Poco::Net::SocketAddress resolveAddress(const std::string & host, UInt16 port);

+    /// Accepts host names like 'example.com'/'example.com:port' or '127.0.0.1'/'127.0.0.1:port' or '::1'/'[::1]:port'
+    /// and resolves its IP and port, if port is set
+    std::pair<Poco::Net::IPAddress, std::optional<UInt16>> resolveHostOrAddress(const std::string & host_and_port);
+
    /// Accepts host IP and resolves its host name
    String reverseResolve(const Poco::Net::IPAddress & address);

--- a/src/Common/ProfileEvents.cpp
+++ b/src/Common/ProfileEvents.cpp
@ -281,6 +281,10 @@
    M(ExternalDataSourceLocalCacheReadBytes, "Bytes read from local cache buffer in RemoteReadBufferCache")\
    \
    M(MainConfigLoads, "Number of times the main configuration was reloaded.") \
+    \
+    M(ScalarSubqueriesGlobalCacheHit, "Number of times a read from a scalar subquery was done using the global cache") \
+    M(ScalarSubqueriesLocalCacheHit, "Number of times a read from a scalar subquery was done using the local cache") \
+    M(ScalarSubqueriesCacheMiss, "Number of times a read from a scalar subquery was not cached and had to be calculated completely")

 namespace ProfileEvents
 {
--- a/src/Coordination/SnapshotableHashTable.h
+++ b/src/Coordination/SnapshotableHashTable.h
@ -2,6 +2,7 @@
 #include <base/StringRef.h>
 #include <Common/HashTable/HashMap.h>
 #include <Common/ArenaWithFreeLists.h>
+#include <Common/ArenaUtils.h>
 #include <unordered_map>
 #include <list>
 #include <atomic>
@ -36,6 +37,8 @@ private:
    /// Allows to avoid additional copies in updateValue function
    size_t snapshot_up_to_size = 0;
    ArenaWithFreeLists arena;
+    /// Collect invalid iterators to avoid traversing the whole list
+    std::vector<Mapped> snapshot_invalid_iters;

    uint64_t approximate_data_size{0};

@ -113,17 +116,6 @@ private:
        }
    }

-    StringRef copyStringInArena(const std::string & value_to_copy)
-    {
-        size_t value_to_copy_size = value_to_copy.size();
-        char * place_for_key = arena.alloc(value_to_copy_size);
-        memcpy(reinterpret_cast<void *>(place_for_key), reinterpret_cast<const void *>(value_to_copy.data()), value_to_copy_size);
-        StringRef updated_value{place_for_key, value_to_copy_size};
-
-        return updated_value;
-    }
-
-
 public:

    using iterator = typename List::iterator;
@ -137,7 +129,7 @@ public:

        if (!it)
        {
-            ListElem elem{copyStringInArena(key), value, true};
+            ListElem elem{copyStringInArena(arena, key), value, true};
            auto itr = list.insert(list.end(), elem);
            bool inserted;
            map.emplace(itr->key, it, inserted, hash_value);
@ -159,7 +151,7 @@ public:

        if (it == map.end())
        {
-            ListElem elem{copyStringInArena(key), value, true};
+            ListElem elem{copyStringInArena(arena, key), value, true};
            auto itr = list.insert(list.end(), elem);
            bool inserted;
            map.emplace(itr->key, it, inserted, hash_value);
@ -175,6 +167,7 @@ public:
                list_itr->active_in_map = false;
                auto new_list_itr = list.insert(list.end(), elem);
                it->getMapped() = new_list_itr;
+                snapshot_invalid_iters.push_back(list_itr);
            }
            else
            {
@ -195,6 +188,7 @@ public:
        if (snapshot_mode)
        {
            list_itr->active_in_map = false;
+            snapshot_invalid_iters.push_back(list_itr);
            list_itr->free_key = true;
            map.erase(it->getKey());
        }
@ -235,6 +229,7 @@ public:
            {
                auto elem_copy = *(list_itr);
                list_itr->active_in_map = false;
+                snapshot_invalid_iters.push_back(list_itr);
                updater(elem_copy.value);
                auto itr = list.insert(list.end(), elem_copy);
                it->getMapped() = itr;
@ -274,23 +269,15 @@ public:

    void clearOutdatedNodes()
    {
-        auto start = list.begin();
-        auto end = list.end();
-        for (auto itr = start; itr != end;)
+        for (auto & itr: snapshot_invalid_iters)
        {
-            if (!itr->active_in_map)
-            {
-                updateDataSize(CLEAR_OUTDATED_NODES, itr->key.size, itr->value.sizeInBytes(), 0);
-                if (itr->free_key)
-                    arena.free(const_cast<char *>(itr->key.data), itr->key.size);
-                itr = list.erase(itr);
-            }
-            else
-            {
-                assert(!itr->free_key);
-                itr++;
-            }
+            assert(!itr->active_in_map);
+            updateDataSize(CLEAR_OUTDATED_NODES, itr->key.size, itr->value.sizeInBytes(), 0);
+            if (itr->free_key)
+                arena.free(const_cast<char *>(itr->key.data), itr->key.size);
+            list.erase(itr);
        }
+        snapshot_invalid_iters.clear();
    }

    void clear()
@ -310,7 +297,6 @@ public:

    void disableSnapshotMode()
    {
-
        snapshot_mode = false;
        snapshot_up_to_size = 0;
    }
--- a/src/Core/Settings.h
+++ b/src/Core/Settings.h
@ -429,6 +429,7 @@ class IColumn;
    M(UInt64, min_free_disk_space_for_temporary_data, 0, "The minimum disk space to keep while writing temporary data used in external sorting and aggregation.", 0) \
    \
    M(DefaultDatabaseEngine, default_database_engine, DefaultDatabaseEngine::Atomic, "Default database engine.", 0) \
+    M(DefaultTableEngine, default_table_engine, DefaultTableEngine::None, "Default table engine used when ENGINE is not set in CREATE statement.",0) \
    M(Bool, show_table_uuid_in_table_create_query_if_not_nil, false, "For tables in databases with Engine=Atomic show UUID of the table in its CREATE query.", 0) \
    M(Bool, database_atomic_wait_for_drop_and_detach_synchronously, false, "When executing DROP or DETACH TABLE in Atomic database, wait for table data to be finally dropped or detached.", 0) \
    M(Bool, enable_scalar_subquery_optimization, true, "If it is set to true, prevent scalar subqueries from (de)serializing large scalar values and possibly avoid running the same subquery more than once.", 0) \
@ -482,7 +483,6 @@ class IColumn;
    M(Bool, asterisk_include_alias_columns, false, "Include ALIAS columns for wildcard query", 0) \
    M(Bool, optimize_skip_merged_partitions, false, "Skip partitions with one part with level > 0 in optimize final", 0) \
    M(Bool, optimize_on_insert, true, "Do the same transformation for inserted block of data as if merge was done on this block.", 0) \
-    M(Bool, allow_experimental_projection_optimization, false, "Enable projection optimization when processing SELECT queries", 0) \
    M(Bool, force_optimize_projection, false, "If projection optimization is enabled, SELECT queries need to use projection", 0) \
    M(Bool, async_socket_for_remote, true, "Asynchronously read from socket executing remote query", 0) \
    M(Bool, insert_null_as_default, true, "Insert DEFAULT values instead of NULL in INSERT SELECT (UNION ALL)", 0) \
@ -582,6 +582,7 @@ class IColumn;
    MAKE_OBSOLETE(M, UInt64, merge_tree_clear_old_parts_interval_seconds, 1) \
    MAKE_OBSOLETE(M, UInt64, partial_merge_join_optimizations, 0) \
    MAKE_OBSOLETE(M, MaxThreads, max_alter_threads, 0) \
+    MAKE_OBSOLETE(M, Bool, allow_experimental_projection_optimization, true) \
    /** The section above is for obsolete settings. Do not add anything there. */


--- a/src/Core/SettingsEnums.cpp
+++ b/src/Core/SettingsEnums.cpp
@ -93,6 +93,16 @@ IMPLEMENT_SETTING_ENUM_WITH_RENAME(DefaultDatabaseEngine, ErrorCodes::BAD_ARGUME
    {{"Ordinary", DefaultDatabaseEngine::Ordinary},
     {"Atomic",   DefaultDatabaseEngine::Atomic}})

+IMPLEMENT_SETTING_ENUM_WITH_RENAME(DefaultTableEngine, ErrorCodes::BAD_ARGUMENTS,
+    {{"None", DefaultTableEngine::None},
+     {"Log", DefaultTableEngine::Log},
+     {"StripeLog", DefaultTableEngine::StripeLog},
+     {"MergeTree", DefaultTableEngine::MergeTree},
+     {"ReplacingMergeTree", DefaultTableEngine::ReplacingMergeTree},
+     {"ReplicatedMergeTree", DefaultTableEngine::ReplicatedMergeTree},
+     {"ReplicatedReplacingMergeTree", DefaultTableEngine::ReplicatedReplacingMergeTree},
+     {"Memory", DefaultTableEngine::Memory}})
+
 IMPLEMENT_SETTING_MULTI_ENUM(MySQLDataTypesSupport, ErrorCodes::UNKNOWN_MYSQL_DATATYPES_SUPPORT_LEVEL,
    {{"decimal",    MySQLDataTypesSupport::DECIMAL},
     {"datetime64", MySQLDataTypesSupport::DATETIME64}})
--- a/src/Core/SettingsEnums.h
+++ b/src/Core/SettingsEnums.h
@ -120,6 +120,19 @@ enum class DefaultDatabaseEngine

 DECLARE_SETTING_ENUM(DefaultDatabaseEngine)

+enum class DefaultTableEngine
+{
+    None = 0, /// Disable. Need to use ENGINE =
+    Log,
+    StripeLog,
+    MergeTree,
+    ReplacingMergeTree,
+    ReplicatedMergeTree,
+    ReplicatedReplacingMergeTree,
+    Memory,
+};
+
+DECLARE_SETTING_ENUM(DefaultTableEngine)

 enum class MySQLDataTypesSupport
 {
--- a/src/Databases/DatabaseOnDisk.cpp
+++ b/src/Databases/DatabaseOnDisk.cpp
@ -77,6 +77,10 @@ std::pair<String, StoragePtr> createTableFromAST(
        /// - the code is simpler, since the query is already brought to a suitable form.
        if (!ast_create_query.columns_list || !ast_create_query.columns_list->columns)
        {
+            if (!ast_create_query.storage || !ast_create_query.storage->engine)
+                throw Exception(ErrorCodes::LOGICAL_ERROR, "Invalid storage definition in metadata file: "
+                                                           "it's a bug or result of manual intervention in metadata files");
+
            if (!StorageFactory::instance().checkIfStorageSupportsSchemaInterface(ast_create_query.storage->engine->name))
                throw Exception("Missing definition of columns.", ErrorCodes::EMPTY_LIST_OF_COLUMNS_PASSED);
            /// Leave columns empty.
--- a/src/Databases/MySQL/MaterializedMySQLSyncThread.cpp
+++ b/src/Databases/MySQL/MaterializedMySQLSyncThread.cpp
@ -316,7 +316,7 @@ getTableOutput(const String & database_name, const String & table_name, ContextM
    return std::move(res.pipeline);
 }

-static inline String reWriteMysqlQueryColumn(mysqlxx::Pool::Entry & connection, const String & database_name, const String & table_name, const Settings & global_settings)
+static inline String rewriteMysqlQueryColumn(mysqlxx::Pool::Entry & connection, const String & database_name, const String & table_name, const Settings & global_settings)
 {
    Block tables_columns_sample_block
            {
@ -376,7 +376,7 @@ static inline void dumpDataForTables(

            auto pipeline = getTableOutput(database_name, table_name, query_context);
            StreamSettings mysql_input_stream_settings(context->getSettingsRef());
-            String mysql_select_all_query = "SELECT " + reWriteMysqlQueryColumn(connection, mysql_database_name, table_name, context->getSettings()) + " FROM "
+            String mysql_select_all_query = "SELECT " + rewriteMysqlQueryColumn(connection, mysql_database_name, table_name, context->getSettingsRef()) + " FROM "
                    + backQuoteIfNeed(mysql_database_name) + "." + backQuoteIfNeed(table_name);
            LOG_INFO(&Poco::Logger::get("MaterializedMySQLSyncThread(" + database_name + ")"), "mysql_select_all_query is {}", mysql_select_all_query);
            auto input = std::make_unique<MySQLSource>(connection, mysql_select_all_query, pipeline.getHeader(), mysql_input_stream_settings);
--- a/src/Dictionaries/CacheDictionaryStorage.h
+++ b/src/Dictionaries/CacheDictionaryStorage.h
@ -8,10 +8,10 @@
 #include <Common/randomSeed.h>
 #include <Common/Arena.h>
 #include <Common/ArenaWithFreeLists.h>
+#include <Common/ArenaUtils.h>
 #include <Common/HashTable/LRUHashMap.h>
 #include <Dictionaries/DictionaryStructure.h>
 #include <Dictionaries/ICacheDictionaryStorage.h>
-#include <Dictionaries/DictionaryHelpers.h>


 namespace DB
--- a/src/Dictionaries/DictionaryHelpers.h
+++ b/src/Dictionaries/DictionaryHelpers.h
@ -623,17 +623,6 @@ void mergeBlockWithPipe(
    }
 }

-template <typename Arena>
-static StringRef copyStringInArena(Arena & arena, StringRef value)
-{
-    size_t key_size = value.size;
-    char * place_for_key = arena.alloc(key_size);
-    memcpy(reinterpret_cast<void *>(place_for_key), reinterpret_cast<const void *>(value.data), key_size);
-    StringRef result{place_for_key, key_size};
-
-    return result;
-}
-
 /**
 * Returns ColumnVector data as PaddedPodArray.

--- a/src/Dictionaries/ExecutablePoolDictionarySource.cpp
+++ b/src/Dictionaries/ExecutablePoolDictionarySource.cpp
@ -197,7 +197,7 @@ void registerDictionarySourceExecutablePool(DictionarySourceFactory & factory)

        size_t max_command_execution_time = config.getUInt64(settings_config_prefix + ".max_command_execution_time", 10);

-        size_t max_execution_time_seconds = static_cast<size_t>(context->getSettings().max_execution_time.totalSeconds());
+        size_t max_execution_time_seconds = static_cast<size_t>(context->getSettingsRef().max_execution_time.totalSeconds());
        if (max_execution_time_seconds != 0 && max_command_execution_time > max_execution_time_seconds)
            max_command_execution_time = max_execution_time_seconds;

--- a/src/Dictionaries/FlatDictionary.cpp
+++ b/src/Dictionaries/FlatDictionary.cpp
@ -3,6 +3,7 @@
 #include <Core/Defines.h>
 #include <Common/HashTable/HashMap.h>
 #include <Common/HashTable/HashSet.h>
+#include <Common/ArenaUtils.h>

 #include <DataTypes/DataTypesDecimal.h>
 #include <IO/WriteHelpers.h>
@ -13,7 +14,7 @@
 #include <QueryPipeline/QueryPipelineBuilder.h>
 #include <Processors/Executors/PullingPipelineExecutor.h>

-#include <Dictionaries//DictionarySource.h>
+#include <Dictionaries/DictionarySource.h>
 #include <Dictionaries/DictionaryFactory.h>
 #include <Dictionaries/HierarchyDictionariesUtils.h>

--- a/src/Dictionaries/HashedArrayDictionary.cpp
+++ b/src/Dictionaries/HashedArrayDictionary.cpp
@ -1,5 +1,6 @@
 #include "HashedArrayDictionary.h"

+#include <Common/ArenaUtils.h>
 #include <Core/Defines.h>
 #include <DataTypes/DataTypesDecimal.h>
 #include <Columns/ColumnsNumber.h>
--- a/src/Dictionaries/HashedDictionary.cpp
+++ b/src/Dictionaries/HashedDictionary.cpp
@ -1,5 +1,6 @@
 #include "HashedDictionary.h"

+#include <Common/ArenaUtils.h>
 #include <Core/Defines.h>
 #include <DataTypes/DataTypesDecimal.h>
 #include <Columns/ColumnsNumber.h>
--- a/src/Dictionaries/RangeHashedDictionary.cpp
+++ b/src/Dictionaries/RangeHashedDictionary.cpp
@ -1,5 +1,7 @@
 #include <Dictionaries/RangeHashedDictionary.h>

+#include <Common/ArenaUtils.h>
+
 #include <DataTypes/DataTypesNumber.h>
 #include <DataTypes/DataTypesDecimal.h>
 #include <DataTypes/DataTypeEnum.h>
--- a/src/Dictionaries/SSDCacheDictionaryStorage.h
+++ b/src/Dictionaries/SSDCacheDictionaryStorage.h
@ -16,6 +16,7 @@
 #include <Common/randomSeed.h>
 #include <Common/Arena.h>
 #include <Common/ArenaWithFreeLists.h>
+#include <Common/ArenaUtils.h>
 #include <Common/MemorySanitizer.h>
 #include <Common/CurrentMetrics.h>
 #include <Common/HashTable/HashMap.h>
--- a/src/Functions/geoToH3.cpp
+++ b/src/Functions/geoToH3.cpp
@ -11,6 +11,7 @@
 #include <Common/typeid_cast.h>
 #include <base/range.h>

+#include <constants.h>
 #include <h3api.h>


@ -20,6 +21,8 @@ namespace ErrorCodes
 {
    extern const int ILLEGAL_TYPE_OF_ARGUMENT;
    extern const int INCORRECT_DATA;
+    extern const int ILLEGAL_COLUMN;
+    extern const int ARGUMENT_OUT_OF_BOUND;
 }

 namespace
@ -68,9 +71,35 @@ public:

    ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const override
    {
-        const auto * col_lon = arguments[0].column.get();
-        const auto * col_lat = arguments[1].column.get();
-        const auto * col_res = arguments[2].column.get();
+        const auto * col_lon = checkAndGetColumn<ColumnFloat64>(arguments[0].column.get());
+        if (!col_lon)
+            throw Exception(
+                    ErrorCodes::ILLEGAL_COLUMN,
+                    "Illegal type {} of argument {} of function {}. Must be Float64.",
+                    arguments[0].type->getName(),
+                    1,
+                    getName());
+        const auto & data_lon = col_lon->getData();
+
+        const auto * col_lat = checkAndGetColumn<ColumnFloat64>(arguments[1].column.get());
+        if (!col_lat)
+            throw Exception(
+                    ErrorCodes::ILLEGAL_COLUMN,
+                    "Illegal type {} of argument {} of function {}. Must be Float64.",
+                    arguments[1].type->getName(),
+                    2,
+                    getName());
+        const auto & data_lat = col_lat->getData();
+
+        const auto * col_res = checkAndGetColumn<ColumnUInt8>(arguments[2].column.get());
+        if (!col_res)
+            throw Exception(
+                    ErrorCodes::ILLEGAL_COLUMN,
+                    "Illegal type {} of argument {} of function {}. Must be UInt8.",
+                    arguments[2].type->getName(),
+                    3,
+                    getName());
+        const auto & data_res = col_res->getData();

        auto dst = ColumnVector<UInt64>::create();
        auto & dst_data = dst->getData();
@ -78,9 +107,17 @@ public:

        for (size_t row = 0; row < input_rows_count; ++row)
        {
-            const double lon = col_lon->getFloat64(row);
-            const double lat = col_lat->getFloat64(row);
-            const UInt8 res = col_res->getUInt(row);
+            const double lon = data_lon[row];
+            const double lat = data_lat[row];
+            const UInt8 res = data_res[row];
+
+            if (res > MAX_H3_RES)
+                throw Exception(
+                        ErrorCodes::ARGUMENT_OUT_OF_BOUND,
+                        "The argument 'resolution' ({}) of function {} is out of bounds because the maximum resolution in H3 library is ",
+                        toString(res),
+                        getName(),
+                        MAX_H3_RES);

            LatLng coord;
            coord.lng = degsToRads(lon);
--- a/src/IO/ReadWriteBufferFromHTTP.h
+++ b/src/IO/ReadWriteBufferFromHTTP.h
@ -19,6 +19,7 @@
 #include <Common/DNSResolver.h>
 #include <Common/RemoteHostFilter.h>
 #include <Common/config.h>
+#include <Common/config_version.h>
 #include <base/logger_useful.h>
 #include <Poco/URIStreamFactory.h>

@ -291,6 +292,18 @@ namespace detail
                                "0 < http_retry_initial_backoff_ms < settings.http_retry_max_backoff_ms (now 0 < {} < {})",
                                settings.http_max_tries, settings.http_retry_initial_backoff_ms, settings.http_retry_max_backoff_ms);

+            // Configure User-Agent if it not already set.
+            const std::string user_agent = "User-Agent";
+            auto iter = std::find_if(http_header_entries.begin(), http_header_entries.end(), [&user_agent](const HTTPHeaderEntry & entry)
+            {
+                return std::get<0>(entry) == user_agent;
+            });
+
+            if (iter == http_header_entries.end())
+            {
+                http_header_entries.emplace_back(std::make_pair("User-Agent", fmt::format("ClickHouse/{}", VERSION_STRING)));
+            }
+
            if (!delay_initialization)
            {
                initialize();
--- a/src/IO/WriteBufferFromHTTP.cpp
+++ b/src/IO/WriteBufferFromHTTP.cpp
@ -10,6 +10,7 @@ WriteBufferFromHTTP::WriteBufferFromHTTP(
    const Poco::URI & uri,
    const std::string & method,
    const std::string & content_type,
+    const std::string & content_encoding,
    const ConnectionTimeouts & timeouts,
    size_t buffer_size_)
    : WriteBufferFromOStream(buffer_size_)
@ -24,6 +25,9 @@ WriteBufferFromHTTP::WriteBufferFromHTTP(
        request.set("Content-Type", content_type);
    }

+    if (!content_encoding.empty())
+        request.set("Content-Encoding", content_encoding);
+
    LOG_TRACE((&Poco::Logger::get("WriteBufferToHTTP")), "Sending request to {}", uri.toString());

    ostr = &session->sendRequest(request);
@ -31,6 +35,10 @@ WriteBufferFromHTTP::WriteBufferFromHTTP(

 void WriteBufferFromHTTP::finalizeImpl()
 {
+    // for compressed body, the data is stored in buffered first
+    // here, make sure the content in the buffer has been flushed
+    this->nextImpl();
+
    receiveResponse(*session, request, response, false);
    /// TODO: Response body is ignored.
 }
--- a/src/IO/WriteBufferFromHTTP.h
+++ b/src/IO/WriteBufferFromHTTP.h
@ -21,6 +21,7 @@ public:
    explicit WriteBufferFromHTTP(const Poco::URI & uri,
                                 const std::string & method = Poco::Net::HTTPRequest::HTTP_POST, // POST or PUT only
                                 const std::string & content_type = "",
+                                 const std::string & content_encoding = "",
                                 const ConnectionTimeouts & timeouts = {},
                                 size_t buffer_size_ = DBMS_DEFAULT_BUFFER_SIZE);

--- a/src/IO/tests/gtest_archive_reader_and_writer.cpp
+++ b/src/IO/tests/gtest_archive_reader_and_writer.cpp
@ -328,14 +328,16 @@ TEST_P(ArchiveReaderAndWriterTest, ArchiveNotExist)
 }


+#if USE_MINIZIP
+
 namespace
 {
    const char * supported_archive_file_exts[] =
    {
-#if USE_MINIZIP
        ".zip",
-#endif
    };
 }

 INSTANTIATE_TEST_SUITE_P(All, ArchiveReaderAndWriterTest, ::testing::ValuesIn(supported_archive_file_exts));
+
+#endif
--- a/src/Interpreters/Access/InterpreterCreateRowPolicyQuery.cpp
+++ b/src/Interpreters/Access/InterpreterCreateRowPolicyQuery.cpp
@ -5,6 +5,7 @@
 #include <Parsers/formatAST.h>
 #include <Access/AccessControl.h>
 #include <Access/Common/AccessFlags.h>
+#include <Access/Common/AccessRightsElement.h>
 #include <Access/RowPolicy.h>
 #include <Interpreters/Context.h>
 #include <Interpreters/executeDDLQueryOnCluster.h>
@ -45,22 +46,24 @@ namespace
 BlockIO InterpreterCreateRowPolicyQuery::execute()
 {
    auto & query = query_ptr->as<ASTCreateRowPolicyQuery &>();
-    auto & access_control = getContext()->getAccessControl();
-    getContext()->checkAccess(query.alter ? AccessType::ALTER_ROW_POLICY : AccessType::CREATE_ROW_POLICY);
+    auto required_access = getRequiredAccess();

    if (!query.cluster.empty())
    {
        query.replaceCurrentUserTag(getContext()->getUserName());
-        return executeDDLQueryOnCluster(query_ptr, getContext());
+        return executeDDLQueryOnCluster(query_ptr, getContext(), required_access);
    }

    assert(query.names->cluster.empty());
+    auto & access_control = getContext()->getAccessControl();
+    getContext()->checkAccess(required_access);
+
+    query.replaceEmptyDatabase(getContext()->getCurrentDatabase());
+
    std::optional<RolesOrUsersSet> roles_from_query;
    if (query.roles)
        roles_from_query = RolesOrUsersSet{*query.roles, access_control, getContext()->getUserID()};

-    query.replaceEmptyDatabase(getContext()->getCurrentDatabase());
-
    if (query.alter)
    {
        auto update_func = [&](const AccessEntityPtr & entity) -> AccessEntityPtr
@ -105,4 +108,15 @@ void InterpreterCreateRowPolicyQuery::updateRowPolicyFromQuery(RowPolicy & polic
    updateRowPolicyFromQueryImpl(policy, query, {}, {});
 }

+
+AccessRightsElements InterpreterCreateRowPolicyQuery::getRequiredAccess() const
+{
+    const auto & query = query_ptr->as<const ASTCreateRowPolicyQuery &>();
+    AccessRightsElements res;
+    auto access_type = (query.alter ? AccessType::ALTER_ROW_POLICY : AccessType::CREATE_ROW_POLICY);
+    for (const auto & row_policy_name : query.names->full_names)
+        res.emplace_back(access_type, row_policy_name.database, row_policy_name.table_name);
+    return res;
+}
+
 }
--- a/src/Interpreters/Access/InterpreterCreateRowPolicyQuery.h
+++ b/src/Interpreters/Access/InterpreterCreateRowPolicyQuery.h
@ -6,8 +6,8 @@

 namespace DB
 {
-
 class ASTCreateRowPolicyQuery;
+class AccessRightsElements;
 struct RowPolicy;

 class InterpreterCreateRowPolicyQuery : public IInterpreter, WithMutableContext
@ -20,6 +20,8 @@ public:
    static void updateRowPolicyFromQuery(RowPolicy & policy, const ASTCreateRowPolicyQuery & query);

 private:
+    AccessRightsElements getRequiredAccess() const;
+
    ASTPtr query_ptr;
 };

--- a/src/Interpreters/Access/InterpreterDropAccessEntityQuery.cpp
+++ b/src/Interpreters/Access/InterpreterDropAccessEntityQuery.cpp
@ -49,12 +49,37 @@ AccessRightsElements InterpreterDropAccessEntityQuery::getRequiredAccess() const
    AccessRightsElements res;
    switch (query.type)
    {
-        case AccessEntityType::USER: res.emplace_back(AccessType::DROP_USER); return res;
-        case AccessEntityType::ROLE: res.emplace_back(AccessType::DROP_ROLE); return res;
-        case AccessEntityType::SETTINGS_PROFILE: res.emplace_back(AccessType::DROP_SETTINGS_PROFILE); return res;
-        case AccessEntityType::ROW_POLICY: res.emplace_back(AccessType::DROP_ROW_POLICY); return res;
-        case AccessEntityType::QUOTA: res.emplace_back(AccessType::DROP_QUOTA); return res;
-        case AccessEntityType::MAX: break;
+        case AccessEntityType::USER:
+        {
+            res.emplace_back(AccessType::DROP_USER);
+            return res;
+        }
+        case AccessEntityType::ROLE:
+        {
+            res.emplace_back(AccessType::DROP_ROLE);
+            return res;
+        }
+        case AccessEntityType::SETTINGS_PROFILE:
+        {
+            res.emplace_back(AccessType::DROP_SETTINGS_PROFILE);
+            return res;
+        }
+        case AccessEntityType::ROW_POLICY:
+        {
+            if (query.row_policy_names)
+            {
+                for (const auto & row_policy_name : query.row_policy_names->full_names)
+                    res.emplace_back(AccessType::DROP_ROW_POLICY, row_policy_name.database, row_policy_name.table_name);
+            }
+            return res;
+        }
+        case AccessEntityType::QUOTA:
+        {
+            res.emplace_back(AccessType::DROP_QUOTA);
+            return res;
+        }
+        case AccessEntityType::MAX:
+            break;
    }
    throw Exception(
        toString(query.type) + ": type is not supported by DROP query", ErrorCodes::NOT_IMPLEMENTED);
--- a/src/Interpreters/Access/InterpreterDropAccessEntityQuery.h
+++ b/src/Interpreters/Access/InterpreterDropAccessEntityQuery.h
@ -6,7 +6,6 @@

 namespace DB
 {
-
 class AccessRightsElements;

 class InterpreterDropAccessEntityQuery : public IInterpreter, WithMutableContext
--- a/src/Interpreters/Access/InterpreterShowCreateAccessEntityQuery.cpp
+++ b/src/Interpreters/Access/InterpreterShowCreateAccessEntityQuery.cpp
@ -377,12 +377,48 @@ AccessRightsElements InterpreterShowCreateAccessEntityQuery::getRequiredAccess()
    AccessRightsElements res;
    switch (show_query.type)
    {
-        case AccessEntityType::USER: res.emplace_back(AccessType::SHOW_USERS); return res;
-        case AccessEntityType::ROLE: res.emplace_back(AccessType::SHOW_ROLES); return res;
-        case AccessEntityType::SETTINGS_PROFILE: res.emplace_back(AccessType::SHOW_SETTINGS_PROFILES); return res;
-        case AccessEntityType::ROW_POLICY: res.emplace_back(AccessType::SHOW_ROW_POLICIES); return res;
-        case AccessEntityType::QUOTA: res.emplace_back(AccessType::SHOW_QUOTAS); return res;
-        case AccessEntityType::MAX: break;
+        case AccessEntityType::USER:
+        {
+            res.emplace_back(AccessType::SHOW_USERS);
+            return res;
+        }
+        case AccessEntityType::ROLE:
+        {
+            res.emplace_back(AccessType::SHOW_ROLES);
+            return res;
+        }
+        case AccessEntityType::SETTINGS_PROFILE:
+        {
+            res.emplace_back(AccessType::SHOW_SETTINGS_PROFILES);
+            return res;
+        }
+        case AccessEntityType::ROW_POLICY:
+        {
+            if (show_query.row_policy_names)
+            {
+                for (const auto & row_policy_name : show_query.row_policy_names->full_names)
+                    res.emplace_back(AccessType::SHOW_ROW_POLICIES, row_policy_name.database, row_policy_name.table_name);
+            }
+            else if (show_query.database_and_table_name)
+            {
+                if (show_query.database_and_table_name->second.empty())
+                    res.emplace_back(AccessType::SHOW_ROW_POLICIES, show_query.database_and_table_name->first);
+                else
+                    res.emplace_back(AccessType::SHOW_ROW_POLICIES, show_query.database_and_table_name->first, show_query.database_and_table_name->second);
+            }
+            else
+            {
+                res.emplace_back(AccessType::SHOW_ROW_POLICIES);
+            }
+            return res;
+        }
+        case AccessEntityType::QUOTA:
+        {
+            res.emplace_back(AccessType::SHOW_QUOTAS);
+            return res;
+        }
+        case AccessEntityType::MAX:
+            break;
    }
    throw Exception(toString(show_query.type) + ": type is not supported by SHOW CREATE query", ErrorCodes::NOT_IMPLEMENTED);
 }
--- a/src/Interpreters/Aggregator.cpp
+++ b/src/Interpreters/Aggregator.cpp
@ -855,12 +855,18 @@ void NO_INLINE Aggregator::executeWithoutKeyImpl(


 void NO_INLINE Aggregator::executeOnIntervalWithoutKeyImpl(
-    AggregatedDataWithoutKey & res,
+    AggregatedDataVariants & data_variants,
    size_t row_begin,
    size_t row_end,
    AggregateFunctionInstruction * aggregate_instructions,
-    Arena * arena)
+    Arena * arena) const
 {
+    /// `data_variants` will destroy the states of aggregate functions in the destructor
+    data_variants.aggregator = this;
+    data_variants.init(AggregatedDataVariants::Type::without_key);
+
+    AggregatedDataWithoutKey & res = data_variants.without_key;
+
    /// Adding values
    for (AggregateFunctionInstruction * inst = aggregate_instructions; inst->that; ++inst)
    {
@ -1623,15 +1629,32 @@ Block Aggregator::prepareBlockAndFill(
 }

 void Aggregator::addSingleKeyToAggregateColumns(
-    const AggregatedDataVariants & data_variants,
+    AggregatedDataVariants & data_variants,
    MutableColumns & aggregate_columns) const
 {
-    const auto & data = data_variants.without_key;
-    for (size_t i = 0; i < params.aggregates_size; ++i)
+    auto & data = data_variants.without_key;
+
+    size_t i = 0;
+    try
    {
-        auto & column_aggregate_func = assert_cast<ColumnAggregateFunction &>(*aggregate_columns[i]);
-        column_aggregate_func.getData().push_back(data + offsets_of_aggregate_states[i]);
+        for (i = 0; i < params.aggregates_size; ++i)
+        {
+            auto & column_aggregate_func = assert_cast<ColumnAggregateFunction &>(*aggregate_columns[i]);
+            column_aggregate_func.getData().push_back(data + offsets_of_aggregate_states[i]);
+        }
    }
+    catch (...)
+    {
+        /// Rollback
+        for (size_t rollback_i = 0; rollback_i < i; ++rollback_i)
+        {
+            auto & column_aggregate_func = assert_cast<ColumnAggregateFunction &>(*aggregate_columns[rollback_i]);
+            column_aggregate_func.getData().pop_back();
+        }
+        throw;
+    }
+
+    data = nullptr;
 }

 void Aggregator::addArenasToAggregateColumns(
--- a/src/Interpreters/Aggregator.h
+++ b/src/Interpreters/Aggregator.h
@ -1138,12 +1138,12 @@ private:
        AggregateFunctionInstruction * aggregate_instructions,
        Arena * arena) const;

-    static void executeOnIntervalWithoutKeyImpl(
-        AggregatedDataWithoutKey & res,
+    void executeOnIntervalWithoutKeyImpl(
+        AggregatedDataVariants & data_variants,
        size_t row_begin,
        size_t row_end,
        AggregateFunctionInstruction * aggregate_instructions,
-        Arena * arena);
+        Arena * arena) const;

    template <typename Method>
    void writeToTemporaryFileImpl(
@ -1307,7 +1307,7 @@ private:
        NestedColumnsHolder & nested_columns_holder) const;

    void addSingleKeyToAggregateColumns(
-        const AggregatedDataVariants & data_variants,
+        AggregatedDataVariants & data_variants,
        MutableColumns & aggregate_columns) const;

    void addArenasToAggregateColumns(
--- a/src/Interpreters/ClusterDiscovery.cpp
+++ b/src/Interpreters/ClusterDiscovery.cpp
@ -229,7 +229,7 @@ ClusterPtr ClusterDiscovery::makeCluster(const ClusterInfo & cluster_info)

    bool secure = cluster_info.current_node.secure;
    auto cluster = std::make_shared<Cluster>(
-        context->getSettings(),
+        context->getSettingsRef(),
        shards,
        /* username= */ context->getUserName(),
        /* password= */ "",
--- a/src/Interpreters/ExecuteScalarSubqueriesVisitor.cpp
+++ b/src/Interpreters/ExecuteScalarSubqueriesVisitor.cpp
@ -1,9 +1,9 @@
 #include <Interpreters/ExecuteScalarSubqueriesVisitor.h>

-#include <Columns/ColumnTuple.h>
 #include <Columns/ColumnNullable.h>
-#include <DataTypes/DataTypeTuple.h>
+#include <Columns/ColumnTuple.h>
 #include <DataTypes/DataTypeNullable.h>
+#include <DataTypes/DataTypeTuple.h>
 #include <IO/WriteHelpers.h>
 #include <Interpreters/Context.h>
 #include <Interpreters/InterpreterSelectWithUnionQuery.h>
@ -18,7 +18,14 @@
 #include <Parsers/ASTWithElement.h>
 #include <Parsers/queryToString.h>
 #include <Processors/Executors/PullingAsyncPipelineExecutor.h>
+#include <Common/ProfileEvents.h>

+namespace ProfileEvents
+{
+extern const Event ScalarSubqueriesGlobalCacheHit;
+extern const Event ScalarSubqueriesLocalCacheHit;
+extern const Event ScalarSubqueriesCacheMiss;
+}

 namespace DB
 {
@ -72,40 +79,95 @@ static bool worthConvertingToLiteral(const Block & scalar)
    return !useless_literal_types.count(scalar_type_name);
 }

+static auto getQueryInterpreter(const ASTSubquery & subquery, ExecuteScalarSubqueriesMatcher::Data & data)
+{
+    auto subquery_context = Context::createCopy(data.getContext());
+    Settings subquery_settings = data.getContext()->getSettings();
+    subquery_settings.max_result_rows = 1;
+    subquery_settings.extremes = false;
+    subquery_context->setSettings(subquery_settings);
+    if (!data.only_analyze && subquery_context->hasQueryContext())
+    {
+        /// Save current cached scalars in the context before analyzing the query
+        /// This is specially helpful when analyzing CTE scalars
+        auto context = subquery_context->getQueryContext();
+        for (const auto & it : data.scalars)
+            context->addScalar(it.first, it.second);
+    }
+
+    ASTPtr subquery_select = subquery.children.at(0);
+
+    auto options = SelectQueryOptions(QueryProcessingStage::Complete, data.subquery_depth + 1, true);
+    options.analyze(data.only_analyze);
+
+    return std::make_unique<InterpreterSelectWithUnionQuery>(subquery_select, subquery_context, options);
+}
+
 void ExecuteScalarSubqueriesMatcher::visit(const ASTSubquery & subquery, ASTPtr & ast, Data & data)
 {
    auto hash = subquery.getTreeHash();
    auto scalar_query_hash_str = toString(hash.first) + "_" + toString(hash.second);

+    std::unique_ptr<InterpreterSelectWithUnionQuery> interpreter = nullptr;
+    bool hit = false;
+    bool is_local = false;
+
    Block scalar;
-    if (data.getContext()->hasQueryContext() && data.getContext()->getQueryContext()->hasScalar(scalar_query_hash_str))
+    if (data.local_scalars.count(scalar_query_hash_str))
    {
-        scalar = data.getContext()->getQueryContext()->getScalar(scalar_query_hash_str);
+        hit = true;
+        scalar = data.local_scalars[scalar_query_hash_str];
+        is_local = true;
+        ProfileEvents::increment(ProfileEvents::ScalarSubqueriesLocalCacheHit);
    }
    else if (data.scalars.count(scalar_query_hash_str))
    {
+        hit = true;
        scalar = data.scalars[scalar_query_hash_str];
+        ProfileEvents::increment(ProfileEvents::ScalarSubqueriesGlobalCacheHit);
    }
    else
    {
-        auto subquery_context = Context::createCopy(data.getContext());
-        Settings subquery_settings = data.getContext()->getSettings();
-        subquery_settings.max_result_rows = 1;
-        subquery_settings.extremes = false;
-        subquery_context->setSettings(subquery_settings);
+        if (data.getContext()->hasQueryContext() && data.getContext()->getQueryContext()->hasScalar(scalar_query_hash_str))
+        {
+            if (!data.getContext()->getViewSource())
+            {
+                /// We aren't using storage views so we can safely use the context cache
+                scalar = data.getContext()->getQueryContext()->getScalar(scalar_query_hash_str);
+                ProfileEvents::increment(ProfileEvents::ScalarSubqueriesGlobalCacheHit);
+                hit = true;
+            }
+            else
+            {
+                /// If we are under a context that uses views that means that the cache might contain values that reference
+                /// the original table and not the view, so in order to be able to check the global cache we need to first
+                /// make sure that the query doesn't use the view
+                /// Note in any case the scalar will end up cached in *data* so this won't be repeated inside this context
+                interpreter = getQueryInterpreter(subquery, data);
+                if (!interpreter->usesViewSource())
+                {
+                    scalar = data.getContext()->getQueryContext()->getScalar(scalar_query_hash_str);
+                    ProfileEvents::increment(ProfileEvents::ScalarSubqueriesGlobalCacheHit);
+                    hit = true;
+                }
+            }
+        }
+    }

-        ASTPtr subquery_select = subquery.children.at(0);
+    if (!hit)
+    {
+        if (!interpreter)
+            interpreter = getQueryInterpreter(subquery, data);

-        auto options = SelectQueryOptions(QueryProcessingStage::Complete, data.subquery_depth + 1, true);
-        options.analyze(data.only_analyze);
+        ProfileEvents::increment(ProfileEvents::ScalarSubqueriesCacheMiss);
+        is_local = interpreter->usesViewSource();

-        auto interpreter = InterpreterSelectWithUnionQuery(subquery_select, subquery_context, options);
        Block block;

        if (data.only_analyze)
        {
            /// If query is only analyzed, then constants are not correct.
-            block = interpreter.getSampleBlock();
+            block = interpreter->getSampleBlock();
            for (auto & column : block)
            {
                if (column.column->empty())
@ -118,14 +180,14 @@ void ExecuteScalarSubqueriesMatcher::visit(const ASTSubquery & subquery, ASTPtr
        }
        else
        {
-            auto io = interpreter.execute();
+            auto io = interpreter->execute();

            PullingAsyncPipelineExecutor executor(io.pipeline);
            while (block.rows() == 0 && executor.pull(block));

            if (block.rows() == 0)
            {
-                auto types = interpreter.getSampleBlock().getDataTypes();
+                auto types = interpreter->getSampleBlock().getDataTypes();
                if (types.size() != 1)
                    types = {std::make_shared<DataTypeTuple>(types)};

@ -218,7 +280,10 @@ void ExecuteScalarSubqueriesMatcher::visit(const ASTSubquery & subquery, ASTPtr
        ast = std::move(func);
    }

-    data.scalars[scalar_query_hash_str] = std::move(scalar);
+    if (is_local)
+        data.local_scalars[scalar_query_hash_str] = std::move(scalar);
+    else
+        data.scalars[scalar_query_hash_str] = std::move(scalar);
 }

 void ExecuteScalarSubqueriesMatcher::visit(const ASTFunction & func, ASTPtr & ast, Data & data)
--- a/src/Interpreters/ExecuteScalarSubqueriesVisitor.h
+++ b/src/Interpreters/ExecuteScalarSubqueriesVisitor.h
@ -19,11 +19,8 @@ struct ASTTableExpression;
    *
    * Features
    *
-    * A replacement occurs during query analysis, and not during the main runtime.
-    * This means that the progress indicator will not work during the execution of these requests,
-    *  and also such queries can not be aborted.
-    *
-    * But the query result can be used for the index in the table.
+    * A replacement occurs during query analysis, and not during the main runtime, so
+    * the query result can be used for the index in the table.
    *
    * Scalar subqueries are executed on the request-initializer server.
    * The request is sent to remote servers with already substituted constants.
@ -37,6 +34,7 @@ public:
    {
        size_t subquery_depth;
        Scalars & scalars;
+        Scalars & local_scalars;
        bool only_analyze;
    };

--- a/src/Interpreters/IInterpreterUnionOrSelectQuery.h
+++ b/src/Interpreters/IInterpreterUnionOrSelectQuery.h
@ -40,6 +40,15 @@ public:

    void extendQueryLogElemImpl(QueryLogElement & elem, const ASTPtr &, ContextPtr) const override;

+    /// Returns whether the query uses the view source from the Context
+    /// The view source is a virtual storage that currently only materialized views use to replace the source table
+    /// with the incoming block only
+    /// This flag is useful to know for how long we can cache scalars generated by this query: If it doesn't use the virtual storage
+    /// then we can cache the scalars forever (for any query that doesn't use the virtual storage either), but if it does use the virtual
+    /// storage then we can only keep the scalar result around while we are working with that source block
+    /// You can find more details about this under ExecuteScalarSubqueriesMatcher::visit
+    bool usesViewSource() { return uses_view_source; }
+
 protected:
    ASTPtr query_ptr;
    ContextMutablePtr context;
@ -48,6 +57,7 @@ protected:
    size_t max_streams = 1;
    bool settings_limit_offset_needed = false;
    bool settings_limit_offset_done = false;
+    bool uses_view_source = false;
 };
 }

--- a/src/Interpreters/InterpreterCreateQuery.cpp
+++ b/src/Interpreters/InterpreterCreateQuery.cpp
@ -2,6 +2,7 @@

 #include <filesystem>

+#include "Common/Exception.h"
 #include <Common/StringUtils/StringUtils.h>
 #include <Common/escapeForFileName.h>
 #include <Common/typeid_cast.h>
@ -12,6 +13,7 @@

 #include <Core/Defines.h>
 #include <Core/Settings.h>
+#include <Core/SettingsEnums.h>

 #include <IO/WriteBufferFromFile.h>
 #include <IO/WriteHelpers.h>
@ -91,6 +93,7 @@ namespace ErrorCodes
    extern const int UNKNOWN_DATABASE;
    extern const int PATH_ACCESS_DENIED;
    extern const int NOT_IMPLEMENTED;
+    extern const int ENGINE_REQUIRED;
 }

 namespace fs = std::filesystem;
@ -157,6 +160,9 @@ BlockIO InterpreterCreateQuery::createDatabase(ASTCreateQuery & create)
        throw Exception(ErrorCodes::UNKNOWN_DATABASE_ENGINE, "Unknown database engine: {}", serializeAST(*create.storage));
    }

+    if (create.storage && !create.storage->engine)
+        throw Exception(ErrorCodes::INCORRECT_QUERY, "Database engine must be specified");
+
    if (create.storage->engine->name == "Atomic"
        || create.storage->engine->name == "Replicated"
        || create.storage->engine->name == "MaterializedPostgreSQL")
@ -581,6 +587,17 @@ ConstraintsDescription InterpreterCreateQuery::getConstraintsDescription(const A

 InterpreterCreateQuery::TableProperties InterpreterCreateQuery::getTablePropertiesAndNormalizeCreateQuery(ASTCreateQuery & create) const
 {
+    /// Set the table engine if it was not specified explicitly.
+    setEngine(create);
+
+    /// We have to check access rights again (in case engine was changed).
+    if (create.storage)
+    {
+        auto source_access_type = StorageFactory::instance().getSourceAccessType(create.storage->engine->name);
+        if (source_access_type != AccessType::NONE)
+            getContext()->checkAccess(source_access_type);
+    }
+
    TableProperties properties;
    TableLockHolder as_storage_lock;

@ -645,7 +662,7 @@ InterpreterCreateQuery::TableProperties InterpreterCreateQuery::getTableProperti
    }
    /// We can have queries like "CREATE TABLE <table> ENGINE=<engine>" if <engine>
    /// supports schema inference (will determine table structure in it's constructor).
-    else if (!StorageFactory::instance().checkIfStorageSupportsSchemaInterface(create.storage->engine->name))
+    else if (!StorageFactory::instance().checkIfStorageSupportsSchemaInterface(create.storage->engine->name)) // NOLINT
        throw Exception("Incorrect CREATE query: required list of column descriptions or AS section or SELECT.", ErrorCodes::INCORRECT_QUERY);

    /// Even if query has list of columns, canonicalize it (unfold Nested columns).
@ -663,8 +680,6 @@ InterpreterCreateQuery::TableProperties InterpreterCreateQuery::getTableProperti
    create.columns_list->setOrReplace(create.columns_list->projections, new_projections);

    validateTableStructure(create, properties);
-    /// Set the table engine if it was not specified explicitly.
-    setEngine(create);

    assert(as_database_saved.empty() && as_table_saved.empty());
    std::swap(create.as_database, as_database_saved);
@ -718,30 +733,90 @@ void InterpreterCreateQuery::validateTableStructure(const ASTCreateQuery & creat
    }
 }

+String InterpreterCreateQuery::getTableEngineName(DefaultTableEngine default_table_engine)
+{
+    switch (default_table_engine)
+    {
+        case DefaultTableEngine::Log:
+            return "Log";
+
+        case DefaultTableEngine::StripeLog:
+            return "StripeLog";
+
+        case DefaultTableEngine::MergeTree:
+            return "MergeTree";
+
+        case DefaultTableEngine::ReplacingMergeTree:
+            return "ReplacingMergeTree";
+
+        case DefaultTableEngine::ReplicatedMergeTree:
+            return "ReplicatedMergeTree";
+
+        case DefaultTableEngine::ReplicatedReplacingMergeTree:
+            return "ReplicatedReplacingMergeTree";
+
+        case DefaultTableEngine::Memory:
+            return "Memory";
+
+        default:
+            throw Exception("default_table_engine is set to unknown value", ErrorCodes::LOGICAL_ERROR);
+    }
+}
+
+void InterpreterCreateQuery::setDefaultTableEngine(ASTStorage & storage, ContextPtr local_context)
+{
+    if (local_context->getSettingsRef().default_table_engine.value == DefaultTableEngine::None)
+        throw Exception(ErrorCodes::ENGINE_REQUIRED, "Table engine is not specified in CREATE query");
+
+    auto engine_ast = std::make_shared<ASTFunction>();
+    auto default_table_engine = local_context->getSettingsRef().default_table_engine.value;
+    engine_ast->name = getTableEngineName(default_table_engine);
+    engine_ast->no_empty_args = true;
+    storage.set(storage.engine, engine_ast);
+}
+
 void InterpreterCreateQuery::setEngine(ASTCreateQuery & create) const
 {
    if (create.as_table_function)
        return;

-    if (create.storage || create.is_dictionary || create.isView())
-    {
-        if (create.temporary && create.storage && create.storage->engine && create.storage->engine->name != "Memory")
-            throw Exception(ErrorCodes::INCORRECT_QUERY,
-                "Temporary tables can only be created with ENGINE = Memory, not {}", create.storage->engine->name);
-
+    if (create.is_dictionary || create.is_ordinary_view || create.is_live_view || create.is_window_view)
+        return;
+
+    if (create.is_materialized_view && create.to_table_id)
        return;
-    }

    if (create.temporary)
    {
+        if (create.storage && create.storage->engine && create.storage->engine->name != "Memory")
+            throw Exception(ErrorCodes::INCORRECT_QUERY, "Temporary tables can only be created with ENGINE = Memory, not {}",
+                create.storage->engine->name);
+
+        /// It's possible if some part of storage definition (such as PARTITION BY) is specified, but ENGINE is not.
+        /// It makes sense when default_table_engine setting is used, but not for temporary tables.
+        /// For temporary tables we ignore this setting to allow CREATE TEMPORARY TABLE query without specifying ENGINE
+        /// even if setting is set to MergeTree or something like that (otherwise MergeTree will be substituted and query will fail).
+        if (create.storage && !create.storage->engine)
+            throw Exception(ErrorCodes::INCORRECT_QUERY, "Invalid storage definition for temporary table: must be either ENGINE = Memory or empty");
+
        auto engine_ast = std::make_shared<ASTFunction>();
        engine_ast->name = "Memory";
        engine_ast->no_empty_args = true;
        auto storage_ast = std::make_shared<ASTStorage>();
        storage_ast->set(storage_ast->engine, engine_ast);
        create.set(create.storage, storage_ast);
+        return;
    }
-    else if (!create.as_table.empty())
+
+    if (create.storage)
+    {
+        /// Some part of storage definition (such as PARTITION BY) is specified, but ENGINE is not: just set default one.
+        if (!create.storage->engine)
+            setDefaultTableEngine(*create.storage, getContext());
+        return;
+    }
+
+    if (!create.as_table.empty())
    {
        /// NOTE Getting the structure from the table specified in the AS is done not atomically with the creation of the table.

@ -754,24 +829,16 @@ void InterpreterCreateQuery::setEngine(ASTCreateQuery & create) const
        const String qualified_name = backQuoteIfNeed(as_database_name) + "." + backQuoteIfNeed(as_table_name);

        if (as_create.is_ordinary_view)
-            throw Exception(
-                "Cannot CREATE a table AS " + qualified_name + ", it is a View",
-                ErrorCodes::INCORRECT_QUERY);
+            throw Exception(ErrorCodes::INCORRECT_QUERY, "Cannot CREATE a table AS {}, it is a View", qualified_name);

        if (as_create.is_live_view)
-            throw Exception(
-                "Cannot CREATE a table AS " + qualified_name + ", it is a Live View",
-                ErrorCodes::INCORRECT_QUERY);
+            throw Exception(ErrorCodes::INCORRECT_QUERY, "Cannot CREATE a table AS {}, it is a Live View", qualified_name);

        if (as_create.is_window_view)
-            throw Exception(
-                "Cannot CREATE a table AS " + qualified_name + ", it is a Window View",
-                ErrorCodes::INCORRECT_QUERY);
+            throw Exception(ErrorCodes::INCORRECT_QUERY, "Cannot CREATE a table AS {}, it is a Window View", qualified_name);

        if (as_create.is_dictionary)
-            throw Exception(
-                "Cannot CREATE a table AS " + qualified_name + ", it is a Dictionary",
-                ErrorCodes::INCORRECT_QUERY);
+            throw Exception(ErrorCodes::INCORRECT_QUERY, "Cannot CREATE a table AS {}, it is a Dictionary", qualified_name);

        if (as_create.storage)
            create.set(create.storage, as_create.storage->ptr());
@ -779,7 +846,12 @@ void InterpreterCreateQuery::setEngine(ASTCreateQuery & create) const
            create.as_table_function = as_create.as_table_function->clone();
        else
            throw Exception(ErrorCodes::LOGICAL_ERROR, "Cannot set engine, it's a bug.");
+
+        return;
    }
+
+    create.set(create.storage, std::make_shared<ASTStorage>());
+    setDefaultTableEngine(*create.storage, getContext());
 }

 static void generateUUIDForTable(ASTCreateQuery & create)
--- a/src/Interpreters/InterpreterCreateQuery.h
+++ b/src/Interpreters/InterpreterCreateQuery.h
@ -1,6 +1,7 @@
 #pragma once

 #include <Core/NamesAndAliases.h>
+#include <Core/SettingsEnums.h>
 #include <Access/Common/AccessRightsElement.h>
 #include <Interpreters/IInterpreter.h>
 #include <Storages/ColumnsDescription.h>
@ -15,6 +16,7 @@ namespace DB
 class ASTCreateQuery;
 class ASTExpressionList;
 class ASTConstraintDeclaration;
+class ASTStorage;
 class IDatabase;
 using DatabasePtr = std::shared_ptr<IDatabase>;

@ -81,6 +83,8 @@ private:
    /// Calculate list of columns, constraints, indices, etc... of table. Rewrite query in canonical way.
    TableProperties getTablePropertiesAndNormalizeCreateQuery(ASTCreateQuery & create) const;
    void validateTableStructure(const ASTCreateQuery & create, const TableProperties & properties) const;
+    static String getTableEngineName(DefaultTableEngine default_table_engine);
+    static void setDefaultTableEngine(ASTStorage & storage, ContextPtr local_context);
    void setEngine(ASTCreateQuery & create) const;
    AccessRightsElements getRequiredAccess() const;

--- a/src/Interpreters/InterpreterSelectIntersectExceptQuery.cpp
+++ b/src/Interpreters/InterpreterSelectIntersectExceptQuery.cpp
@ -68,7 +68,10 @@ InterpreterSelectIntersectExceptQuery::InterpreterSelectIntersectExceptQuery(
    nested_interpreters.resize(num_children);

    for (size_t i = 0; i < num_children; ++i)
+    {
        nested_interpreters[i] = buildCurrentChildInterpreter(children.at(i));
+        uses_view_source |= nested_interpreters[i]->usesViewSource();
+    }

    Blocks headers(num_children);
    for (size_t query_num = 0; query_num < num_children; ++query_num)
--- a/src/Interpreters/InterpreterSelectQuery.cpp
+++ b/src/Interpreters/InterpreterSelectQuery.cpp
@ -64,8 +64,9 @@
 #include <Processors/Transforms/ExpressionTransform.h>
 #include <Processors/Transforms/FilterTransform.h>

-#include <Storages/MergeTree/MergeTreeWhereOptimizer.h>
 #include <Storages/IStorage.h>
+#include <Storages/MergeTree/MergeTreeWhereOptimizer.h>
+#include <Storages/StorageValues.h>
 #include <Storages/StorageView.h>

 #include <Functions/IFunction.h>
@ -315,6 +316,8 @@ InterpreterSelectQuery::InterpreterSelectQuery(
    if (!has_input && !storage)
    {
        storage = joined_tables.getLeftTableStorage();
+        // Mark uses_view_source if the returned storage is the same as the one saved in viewSource
+        uses_view_source |= storage && storage == context->getViewSource();
        got_storage_from_query = true;
    }

@ -336,6 +339,15 @@ InterpreterSelectQuery::InterpreterSelectQuery(

        joined_tables.reset(getSelectQuery());
        joined_tables.resolveTables();
+        if (auto view_source = context->getViewSource())
+        {
+            // If we are using a virtual block view to replace a table and that table is used
+            // inside the JOIN then we need to update uses_view_source accordingly so we avoid propagating scalars that we can't cache
+            const auto & storage_values = static_cast<const StorageValues &>(*view_source);
+            auto tmp_table_id = storage_values.getStorageID();
+            for (const auto & t : joined_tables.tablesWithColumns())
+                uses_view_source |= (t.table.database == tmp_table_id.database_name && t.table.table == tmp_table_id.table_name);
+        }

        if (storage && joined_tables.isLeftTableSubquery())
        {
@ -351,7 +363,10 @@ InterpreterSelectQuery::InterpreterSelectQuery(
    {
        interpreter_subquery = joined_tables.makeLeftTableSubquery(options.subquery());
        if (interpreter_subquery)
+        {
            source_header = interpreter_subquery->getSampleBlock();
+            uses_view_source |= interpreter_subquery->usesViewSource();
+        }
    }

    joined_tables.rewriteDistributedInAndJoins(query_ptr);
@ -389,9 +404,8 @@ InterpreterSelectQuery::InterpreterSelectQuery(
            query.setFinal();

        /// Save scalar sub queries's results in the query context
-        /// But discard them if the Storage has been modified
-        /// In an ideal situation we would only discard the scalars affected by the storage change
-        if (!options.only_analyze && context->hasQueryContext() && !context->getViewSource())
+        /// Note that we are only saving scalars and not local_scalars since the latter can't be safely shared across contexts
+        if (!options.only_analyze && context->hasQueryContext())
            for (const auto & it : syntax_analyzer_result->getScalars())
                context->getQueryContext()->addScalar(it.first, it.second);

@ -479,6 +493,7 @@ InterpreterSelectQuery::InterpreterSelectQuery(
            /// If there is an aggregation in the outer query, WITH TOTALS is ignored in the subquery.
            if (query_analyzer->hasAggregation())
                interpreter_subquery->ignoreWithTotals();
+            uses_view_source |= interpreter_subquery->usesViewSource();
        }

        required_columns = syntax_analyzer_result->requiredSourceColumns();
--- a/src/Interpreters/InterpreterSelectWithUnionQuery.cpp
+++ b/src/Interpreters/InterpreterSelectWithUnionQuery.cpp
@ -138,6 +138,9 @@ InterpreterSelectWithUnionQuery::InterpreterSelectWithUnionQuery(

        nested_interpreters.emplace_back(
            buildCurrentChildInterpreter(ast->list_of_selects->children.at(query_num), require_full_header ? Names() : current_required_result_column_names));
+        // We need to propagate the uses_view_source flag from children to the (self) parent since, if one of the children uses
+        // a view source that means that the parent uses it too and can be cached globally
+        uses_view_source |= nested_interpreters.back()->usesViewSource();
    }

    /// Determine structure of the result.
--- a/src/Interpreters/TreeRewriter.cpp
+++ b/src/Interpreters/TreeRewriter.cpp
@ -479,10 +479,11 @@ void removeUnneededColumnsFromSelectClause(const ASTSelectQuery * select_query,
 }

 /// Replacing scalar subqueries with constant values.
-void executeScalarSubqueries(ASTPtr & query, ContextPtr context, size_t subquery_depth, Scalars & scalars, bool only_analyze)
+void executeScalarSubqueries(
+    ASTPtr & query, ContextPtr context, size_t subquery_depth, Scalars & scalars, Scalars & local_scalars, bool only_analyze)
 {
    LogAST log;
-    ExecuteScalarSubqueriesVisitor::Data visitor_data{WithContext{context}, subquery_depth, scalars, only_analyze};
+    ExecuteScalarSubqueriesVisitor::Data visitor_data{WithContext{context}, subquery_depth, scalars, local_scalars, only_analyze};
    ExecuteScalarSubqueriesVisitor(visitor_data, log.stream()).visit(query);
 }

@ -1158,7 +1159,7 @@ TreeRewriterResultPtr TreeRewriter::analyzeSelect(
    removeUnneededColumnsFromSelectClause(select_query, required_result_columns, remove_duplicates);

    /// Executing scalar subqueries - replacing them with constant values.
-    executeScalarSubqueries(query, getContext(), subquery_depth, result.scalars, select_options.only_analyze);
+    executeScalarSubqueries(query, getContext(), subquery_depth, result.scalars, result.local_scalars, select_options.only_analyze);

    if (settings.legacy_column_name_of_tuple_literal)
        markTupleLiteralsAsLegacy(query);
@ -1248,7 +1249,7 @@ TreeRewriterResultPtr TreeRewriter::analyze(
    normalize(query, result.aliases, result.source_columns_set, false, settings, allow_self_aliases);

    /// Executing scalar subqueries. Column defaults could be a scalar subquery.
-    executeScalarSubqueries(query, getContext(), 0, result.scalars, !execute_scalar_subqueries);
+    executeScalarSubqueries(query, getContext(), 0, result.scalars, result.local_scalars, !execute_scalar_subqueries);

    if (settings.legacy_column_name_of_tuple_literal)
        markTupleLiteralsAsLegacy(query);
--- a/src/Interpreters/TreeRewriter.h
+++ b/src/Interpreters/TreeRewriter.h
@ -75,6 +75,7 @@ struct TreeRewriterResult

    /// Results of scalar sub queries
    Scalars scalars;
+    Scalars local_scalars;

    explicit TreeRewriterResult(
        const NamesAndTypesList & source_columns_,
--- a/src/Parsers/ASTSelectQuery.cpp
+++ b/src/Parsers/ASTSelectQuery.cpp
@ -22,38 +22,20 @@ namespace ErrorCodes
 ASTPtr ASTSelectQuery::clone() const
 {
    auto res = std::make_shared<ASTSelectQuery>(*this);
+
+    /** NOTE Members must clone exactly in the same order in which they were inserted into `children` in ParserSelectQuery.
+     * This is important because the AST hash depends on the children order and this hash is used for multiple things,
+     * like the column identifiers in the case of subqueries in the IN statement or caching scalar queries (reused in CTEs so it's
+     * important for them to have the same hash).
+     * For distributed query processing, in case one of the servers is localhost and the other one is not, localhost query is executed
+     * within the process and is cloned, and the request is sent to the remote server in text form via TCP.
+     * And if the cloning order does not match the parsing order then different servers will get different identifiers.
+     *
+     * Since the positions map uses <key, position> we can copy it as is and ensure the new children array is created / pushed
+     * in the same order as the existing one */
    res->children.clear();
-    res->positions.clear();
-
-#define CLONE(expr) res->setExpression(expr, getExpression(expr, true))
-
-    /** NOTE Members must clone exactly in the same order,
-        *  in which they were inserted into `children` in ParserSelectQuery.
-        * This is important because of the children's names the identifier (getTreeHash) is compiled,
-        *  which can be used for column identifiers in the case of subqueries in the IN statement.
-        * For distributed query processing, in case one of the servers is localhost and the other one is not,
-        *  localhost query is executed within the process and is cloned,
-        *  and the request is sent to the remote server in text form via TCP.
-        * And if the cloning order does not match the parsing order,
-        *  then different servers will get different identifiers.
-        */
-    CLONE(Expression::WITH);
-    CLONE(Expression::SELECT);
-    CLONE(Expression::TABLES);
-    CLONE(Expression::PREWHERE);
-    CLONE(Expression::WHERE);
-    CLONE(Expression::GROUP_BY);
-    CLONE(Expression::HAVING);
-    CLONE(Expression::WINDOW);
-    CLONE(Expression::ORDER_BY);
-    CLONE(Expression::LIMIT_BY_OFFSET);
-    CLONE(Expression::LIMIT_BY_LENGTH);
-    CLONE(Expression::LIMIT_BY);
-    CLONE(Expression::LIMIT_OFFSET);
-    CLONE(Expression::LIMIT_LENGTH);
-    CLONE(Expression::SETTINGS);
-
-#undef CLONE
+    for (const auto & child : children)
+        res->children.push_back(child->clone());

    return res;
 }
--- a/src/Parsers/ParserCreateQuery.cpp
+++ b/src/Parsers/ParserCreateQuery.cpp
@ -18,6 +18,7 @@
 #include <Parsers/ParserSelectWithUnionQuery.h>
 #include <Parsers/ParserSetQuery.h>
 #include <Common/typeid_cast.h>
+#include <Parsers/ASTColumnDeclaration.h>


 namespace DB
@ -353,20 +354,26 @@ bool ParserStorage::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
    ASTPtr ttl_table;
    ASTPtr settings;

-    if (!s_engine.ignore(pos, expected))
-        return false;
+    bool storage_like = false;

-    s_eq.ignore(pos, expected);
+    if (s_engine.ignore(pos, expected))
+    {
+        s_eq.ignore(pos, expected);

-    if (!ident_with_optional_params_p.parse(pos, engine, expected))
-        return false;
+        if (!ident_with_optional_params_p.parse(pos, engine, expected))
+            return false;
+        storage_like = true;
+    }

    while (true)
    {
        if (!partition_by && s_partition_by.ignore(pos, expected))
        {
            if (expression_p.parse(pos, partition_by, expected))
+            {
+                storage_like = true;
                continue;
+            }
            else
                return false;
        }
@ -374,7 +381,10 @@ bool ParserStorage::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
        if (!primary_key && s_primary_key.ignore(pos, expected))
        {
            if (expression_p.parse(pos, primary_key, expected))
+            {
+                storage_like = true;
                continue;
+            }
            else
                return false;
        }
@ -382,7 +392,10 @@ bool ParserStorage::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
        if (!order_by && s_order_by.ignore(pos, expected))
        {
            if (expression_p.parse(pos, order_by, expected))
+            {
+                storage_like = true;
                continue;
+            }
            else
                return false;
        }
@ -390,7 +403,10 @@ bool ParserStorage::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
        if (!sample_by && s_sample_by.ignore(pos, expected))
        {
            if (expression_p.parse(pos, sample_by, expected))
+            {
+                storage_like = true;
                continue;
+            }
            else
                return false;
        }
@ -398,7 +414,10 @@ bool ParserStorage::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
        if (!ttl_table && s_ttl.ignore(pos, expected))
        {
            if (parser_ttl_list.parse(pos, ttl_table, expected))
+            {
+                storage_like = true;
                continue;
+            }
            else
                return false;
        }
@ -407,10 +426,14 @@ bool ParserStorage::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
        {
            if (!settings_p.parse(pos, settings, expected))
                return false;
+            storage_like = true;
        }

        break;
    }
+    // If any part of storage definition is found create storage node
+    if (!storage_like)
+        return false;

    auto storage = std::make_shared<ASTStorage>();
    storage->set(storage->engine, engine);
@ -549,13 +572,11 @@ bool ParserCreateTableQuery::parseImpl(Pos & pos, ASTPtr & node, Expected & expe

        if (!storage_parse_result && !is_temporary)
        {
-            if (!s_as.ignore(pos, expected))
+            if (s_as.ignore(pos, expected) && !table_function_p.parse(pos, as_table_function, expected))
                return false;
-            if (!table_function_p.parse(pos, as_table_function, expected))
-            {
-                return false;
-            }
        }
+
+        /// Will set default table engine if Storage clause was not parsed
    }
    /** Create queries without list of columns:
      *  - CREATE|ATTACH TABLE ... AS ...
@ -590,10 +611,6 @@ bool ParserCreateTableQuery::parseImpl(Pos & pos, ASTPtr & node, Expected & expe
                }
            }
        }
-        else if (!storage)
-        {
-            return false;
-        }
    }
    auto comment = parseComment(pos, expected);

@ -625,12 +642,14 @@ bool ParserCreateTableQuery::parseImpl(Pos & pos, ASTPtr & node, Expected & expe
    if (comment)
        query->set(query->comment, comment);

-    if (query->storage && query->columns_list && query->columns_list->primary_key)
+    if (query->columns_list && query->columns_list->primary_key)
    {
-        if (query->storage->primary_key)
-        {
+        /// If engine is not set will use default one
+        if (!query->storage)
+            query->set(query->storage, std::make_shared<ASTStorage>());
+        else if (query->storage->primary_key)
            throw Exception("Multiple primary keys are not allowed.", ErrorCodes::BAD_ARGUMENTS);
-        }
+
        query->storage->primary_key = query->columns_list->primary_key;
    }

@ -1263,8 +1282,8 @@ bool ParserCreateViewQuery::parseImpl(Pos & pos, ASTPtr & node, Expected & expec
    if (is_materialized_view && !to_table)
    {
        /// Internal ENGINE for MATERIALIZED VIEW must be specified.
-        if (!storage_p.parse(pos, storage, expected))
-            return false;
+        /// Actually check it in Interpreter as default_table_engine can be set
+        storage_p.parse(pos, storage, expected);

        if (s_populate.ignore(pos, expected))
            is_populate = true;
--- a/src/Parsers/ParserCreateQuery.h
+++ b/src/Parsers/ParserCreateQuery.h
@ -276,7 +276,7 @@ protected:
 class ParserIndexDeclaration : public IParserBase
 {
 public:
-    ParserIndexDeclaration() {}
+    ParserIndexDeclaration() = default;

 protected:
    const char * getName() const override { return "index declaration"; }
@ -336,7 +336,7 @@ protected:


 /**
-  * ENGINE = name [PARTITION BY expr] [ORDER BY expr] [PRIMARY KEY expr] [SAMPLE BY expr] [SETTINGS name = value, ...]
+  * [ENGINE = name] [PARTITION BY expr] [ORDER BY expr] [PRIMARY KEY expr] [SAMPLE BY expr] [SETTINGS name = value, ...]
  */
 class ParserStorage : public IParserBase
 {
@ -391,7 +391,7 @@ class ParserTableOverrideDeclaration : public IParserBase
 {
 public:
    const bool is_standalone;
-    ParserTableOverrideDeclaration(bool is_standalone_ = true) : is_standalone(is_standalone_) { }
+    explicit ParserTableOverrideDeclaration(bool is_standalone_ = true) : is_standalone(is_standalone_) { }

 protected:
    const char * getName() const override { return "table override declaration"; }
--- a/src/Processors/Formats/Impl/JSONEachRowRowInputFormat.cpp
+++ b/src/Processors/Formats/Impl/JSONEachRowRowInputFormat.cpp
@ -356,6 +356,7 @@ void registerInputFormatJSONEachRow(FormatFactory & factory)
    });

    factory.registerFileExtension("ndjson", "JSONEachRow");
+    factory.registerFileExtension("jsonl", "JSONEachRow");

    factory.registerInputFormat("JSONStringsEachRow", [](
        ReadBuffer & buf,
--- a/src/Processors/Formats/Impl/TSKVRowInputFormat.cpp
+++ b/src/Processors/Formats/Impl/TSKVRowInputFormat.cpp
@ -20,7 +20,7 @@ namespace ErrorCodes


 TSKVRowInputFormat::TSKVRowInputFormat(ReadBuffer & in_, Block header_, Params params_, const FormatSettings & format_settings_)
-    : IRowInputFormat(header_, in_, std::move(params_)), format_settings(format_settings_), name_map(header_.columns())
+    : IRowInputFormat(std::move(header_), in_, std::move(params_)), format_settings(format_settings_), name_map(getPort().getHeader().columns())
 {
    const auto & sample_block = getPort().getHeader();
    size_t num_columns = sample_block.columns();
--- a/src/Processors/QueryPlan/ReadFromMergeTree.cpp
+++ b/src/Processors/QueryPlan/ReadFromMergeTree.cpp
@ -921,8 +921,8 @@ MergeTreeDataSelectAnalysisResultPtr ReadFromMergeTree::selectRangesToRead(

        auto reader_settings = getMergeTreeReaderSettings(context);

-        bool use_skip_indexes = context->getSettings().use_skip_indexes;
-        if (select.final() && !context->getSettings().use_skip_indexes_if_final)
+        bool use_skip_indexes = settings.use_skip_indexes;
+        if (select.final() && !settings.use_skip_indexes_if_final)
            use_skip_indexes = false;

        result.parts_with_ranges = MergeTreeDataSelectExecutor::filterPartsByPrimaryKeyAndSkipIndexes(
--- a/src/Processors/Transforms/AggregatingInOrderTransform.cpp
+++ b/src/Processors/Transforms/AggregatingInOrderTransform.cpp
@ -121,7 +121,7 @@ void AggregatingInOrderTransform::consume(Chunk chunk)

        /// Add data to aggr. state if interval is not empty. Empty when haven't found current key in new block.
        if (key_begin != key_end)
-            params->aggregator.executeOnIntervalWithoutKeyImpl(variants.without_key, key_begin, key_end, aggregate_function_instructions.data(), variants.aggregates_pool);
+            params->aggregator.executeOnIntervalWithoutKeyImpl(variants, key_begin, key_end, aggregate_function_instructions.data(), variants.aggregates_pool);

        current_memory_usage = getCurrentMemoryUsage() - initial_memory_usage;

--- a/src/Processors/Transforms/CreatingSetsTransform.h
+++ b/src/Processors/Transforms/CreatingSetsTransform.h
@ -44,8 +44,8 @@ public:
 private:
    SubqueryForSet subquery;

-    std::unique_ptr<PushingPipelineExecutor> executor;
    QueryPipeline table_out;
+    std::unique_ptr<PushingPipelineExecutor> executor;
    UInt64 read_rows = 0;
    Stopwatch watch;

--- a/src/Processors/Transforms/buildPushingToViewsChain.cpp
+++ b/src/Processors/Transforms/buildPushingToViewsChain.cpp
@ -331,7 +331,7 @@ Chain buildPushingToViewsChain(
        {
            auto executing_inner_query = std::make_shared<ExecutingInnerQueryFromViewTransform>(
                storage_header, views_data->views.back(), views_data);
-            executing_inner_query->setRuntimeData(view_thread_status, elapsed_counter_ms);
+            executing_inner_query->setRuntimeData(view_thread_status, view_counter_ms);

            out.addSource(std::move(executing_inner_query));
        }
@ -381,7 +381,7 @@ Chain buildPushingToViewsChain(
        processors.emplace_front(std::move(copying_data));
        processors.emplace_back(std::move(finalizing_views));
        result_chain = Chain(std::move(processors));
-        result_chain.setNumThreads(max_parallel_streams);
+        result_chain.setNumThreads(std::min(views_data->max_threads, max_parallel_streams));
    }

    if (auto * live_view = dynamic_cast<StorageLiveView *>(storage.get()))
--- a/src/Processors/Transforms/buildPushingToViewsChain.h
+++ b/src/Processors/Transforms/buildPushingToViewsChain.h
@ -18,7 +18,7 @@ namespace DB

 struct ViewRuntimeData
 {
-    /// A query we should run over inserted block befire pushing into inner storage.
+    /// A query we should run over inserted block before pushing into inner storage.
    const ASTPtr query;
    /// This structure is expected by inner storage. Will convert query result to it.
    Block sample_block;
--- a/src/Processors/Transforms/getSourceFromASTInsertQuery.cpp
+++ b/src/Processors/Transforms/getSourceFromASTInsertQuery.cpp
@ -59,7 +59,7 @@ InputFormatPtr getInputFormatFromASTInsertQuery(
        : std::make_unique<EmptyReadBuffer>();

    /// Create a source from input buffer using format from query
-    auto source = context->getInputFormat(ast_insert_query->format, *input_buffer, header, context->getSettings().max_insert_block_size);
+    auto source = context->getInputFormat(ast_insert_query->format, *input_buffer, header, context->getSettingsRef().max_insert_block_size);
    source->addBuffer(std::move(input_buffer));
    return source;
 }
--- a/src/QueryPipeline/RemoteInserter.cpp
+++ b/src/QueryPipeline/RemoteInserter.cpp
@ -24,7 +24,9 @@ RemoteInserter::RemoteInserter(
    const String & query_,
    const Settings & settings_,
    const ClientInfo & client_info_)
-    : connection(connection_), query(query_)
+    : connection(connection_)
+    , query(query_)
+    , server_revision(connection.getServerRevision(timeouts))
 {
    ClientInfo modified_client_info = client_info_;
    modified_client_info.query_kind = ClientInfo::QueryKind::SECONDARY_QUERY;
--- a/src/QueryPipeline/RemoteInserter.h
+++ b/src/QueryPipeline/RemoteInserter.h
@ -35,12 +35,14 @@ public:
    ~RemoteInserter();

    const Block & getHeader() const { return header; }
+    UInt64 getServerRevision() const { return server_revision; }

 private:
    Connection & connection;
    String query;
    Block header;
    bool finished = false;
+    UInt64 server_revision;
 };

 }
--- a/src/Server/GRPCServer.cpp
+++ b/src/Server/GRPCServer.cpp
@ -51,6 +51,7 @@ using GRPCQueryInfo = clickhouse::grpc::QueryInfo;
 using GRPCResult = clickhouse::grpc::Result;
 using GRPCException = clickhouse::grpc::Exception;
 using GRPCProgress = clickhouse::grpc::Progress;
+using GRPCObsoleteTransportCompression = clickhouse::grpc::ObsoleteTransportCompression;

 namespace DB
 {
@ -101,62 +102,6 @@ namespace
        });
    }

-    grpc_compression_algorithm parseCompressionAlgorithm(const String & str)
-    {
-        if (str == "none")
-            return GRPC_COMPRESS_NONE;
-        else if (str == "deflate")
-            return GRPC_COMPRESS_DEFLATE;
-        else if (str == "gzip")
-            return GRPC_COMPRESS_GZIP;
-        else if (str == "stream_gzip")
-            return GRPC_COMPRESS_STREAM_GZIP;
-        else
-            throw Exception("Unknown compression algorithm: '" + str + "'", ErrorCodes::INVALID_CONFIG_PARAMETER);
-    }
-
-    grpc_compression_level parseCompressionLevel(const String & str)
-    {
-        if (str == "none")
-            return GRPC_COMPRESS_LEVEL_NONE;
-        else if (str == "low")
-            return GRPC_COMPRESS_LEVEL_LOW;
-        else if (str == "medium")
-            return GRPC_COMPRESS_LEVEL_MED;
-        else if (str == "high")
-            return GRPC_COMPRESS_LEVEL_HIGH;
-        else
-            throw Exception("Unknown compression level: '" + str + "'", ErrorCodes::INVALID_CONFIG_PARAMETER);
-    }
-
-    grpc_compression_algorithm convertCompressionAlgorithm(const ::clickhouse::grpc::CompressionAlgorithm & algorithm)
-    {
-        if (algorithm == ::clickhouse::grpc::NO_COMPRESSION)
-            return GRPC_COMPRESS_NONE;
-        else if (algorithm == ::clickhouse::grpc::DEFLATE)
-            return GRPC_COMPRESS_DEFLATE;
-        else if (algorithm == ::clickhouse::grpc::GZIP)
-            return GRPC_COMPRESS_GZIP;
-        else if (algorithm == ::clickhouse::grpc::STREAM_GZIP)
-            return GRPC_COMPRESS_STREAM_GZIP;
-        else
-            throw Exception("Unknown compression algorithm: '" + ::clickhouse::grpc::CompressionAlgorithm_Name(algorithm) + "'", ErrorCodes::INVALID_GRPC_QUERY_INFO);
-    }
-
-    grpc_compression_level convertCompressionLevel(const ::clickhouse::grpc::CompressionLevel & level)
-    {
-        if (level == ::clickhouse::grpc::COMPRESSION_NONE)
-            return GRPC_COMPRESS_LEVEL_NONE;
-        else if (level == ::clickhouse::grpc::COMPRESSION_LOW)
-            return GRPC_COMPRESS_LEVEL_LOW;
-        else if (level == ::clickhouse::grpc::COMPRESSION_MEDIUM)
-            return GRPC_COMPRESS_LEVEL_MED;
-        else if (level == ::clickhouse::grpc::COMPRESSION_HIGH)
-            return GRPC_COMPRESS_LEVEL_HIGH;
-        else
-            throw Exception("Unknown compression level: '" + ::clickhouse::grpc::CompressionLevel_Name(level) + "'", ErrorCodes::INVALID_GRPC_QUERY_INFO);
-    }
-
    /// Gets file's contents as a string, throws an exception if failed.
    String readFile(const String & filepath)
    {
@ -193,6 +138,102 @@ namespace
        return grpc::InsecureServerCredentials();
    }

+    /// Transport compression makes gRPC library to compress packed Result messages before sending them through network.
+    struct TransportCompression
+    {
+        grpc_compression_algorithm algorithm;
+        grpc_compression_level level;
+
+        /// Extracts the settings of transport compression from a query info if possible.
+        static std::optional<TransportCompression> fromQueryInfo(const GRPCQueryInfo & query_info)
+        {
+            TransportCompression res;
+            if (!query_info.transport_compression_type().empty())
+            {
+                res.setAlgorithm(query_info.transport_compression_type(), ErrorCodes::INVALID_GRPC_QUERY_INFO);
+                res.setLevel(query_info.transport_compression_level(), ErrorCodes::INVALID_GRPC_QUERY_INFO);
+                return res;
+            }
+
+            if (query_info.has_obsolete_result_compression())
+            {
+                switch (query_info.obsolete_result_compression().algorithm())
+                {
+                    case GRPCObsoleteTransportCompression::NO_COMPRESSION: res.algorithm = GRPC_COMPRESS_NONE; break;
+                    case GRPCObsoleteTransportCompression::DEFLATE: res.algorithm = GRPC_COMPRESS_DEFLATE; break;
+                    case GRPCObsoleteTransportCompression::GZIP: res.algorithm = GRPC_COMPRESS_GZIP; break;
+                    case GRPCObsoleteTransportCompression::STREAM_GZIP: res.algorithm = GRPC_COMPRESS_STREAM_GZIP; break;
+                    default: throw Exception(ErrorCodes::INVALID_GRPC_QUERY_INFO, "Unknown compression algorithm: {}", GRPCObsoleteTransportCompression::CompressionAlgorithm_Name(query_info.obsolete_result_compression().algorithm()));
+                }
+
+                switch (query_info.obsolete_result_compression().level())
+                {
+                    case GRPCObsoleteTransportCompression::COMPRESSION_NONE: res.level = GRPC_COMPRESS_LEVEL_NONE; break;
+                    case GRPCObsoleteTransportCompression::COMPRESSION_LOW: res.level = GRPC_COMPRESS_LEVEL_LOW; break;
+                    case GRPCObsoleteTransportCompression::COMPRESSION_MEDIUM: res.level = GRPC_COMPRESS_LEVEL_MED; break;
+                    case GRPCObsoleteTransportCompression::COMPRESSION_HIGH: res.level = GRPC_COMPRESS_LEVEL_HIGH; break;
+                    default: throw Exception(ErrorCodes::INVALID_GRPC_QUERY_INFO, "Unknown compression level: {}", GRPCObsoleteTransportCompression::CompressionLevel_Name(query_info.obsolete_result_compression().level()));
+                }
+                return res;
+            }
+
+            return std::nullopt;
+        }
+
+        /// Extracts the settings of transport compression from the server configuration.
+        static TransportCompression fromConfiguration(const Poco::Util::AbstractConfiguration & config)
+        {
+            TransportCompression res;
+            if (config.has("grpc.transport_compression_type"))
+            {
+                res.setAlgorithm(config.getString("grpc.transport_compression_type"), ErrorCodes::INVALID_CONFIG_PARAMETER);
+                res.setLevel(config.getInt("grpc.transport_compression_level", 0), ErrorCodes::INVALID_CONFIG_PARAMETER);
+            }
+            else
+            {
+                res.setAlgorithm(config.getString("grpc.compression", "none"), ErrorCodes::INVALID_CONFIG_PARAMETER);
+                res.setLevel(config.getString("grpc.compression_level", "none"), ErrorCodes::INVALID_CONFIG_PARAMETER);
+            }
+            return res;
+        }
+
+    private:
+        void setAlgorithm(const String & str, int error_code)
+        {
+            if (str == "none")
+                algorithm = GRPC_COMPRESS_NONE;
+            else if (str == "deflate")
+                algorithm = GRPC_COMPRESS_DEFLATE;
+            else if (str == "gzip")
+                algorithm = GRPC_COMPRESS_GZIP;
+            else if (str == "stream_gzip")
+                algorithm = GRPC_COMPRESS_STREAM_GZIP;
+            else
+                throw Exception(error_code, "Unknown compression algorithm: '{}'", str);
+        }
+
+        void setLevel(const String & str, int error_code)
+        {
+            if (str == "none")
+                level = GRPC_COMPRESS_LEVEL_NONE;
+            else if (str == "low")
+                level = GRPC_COMPRESS_LEVEL_LOW;
+            else if (str == "medium")
+                level = GRPC_COMPRESS_LEVEL_MED;
+            else if (str == "high")
+                level = GRPC_COMPRESS_LEVEL_HIGH;
+            else
+                throw Exception(error_code, "Unknown compression level: '{}'", str);
+        }
+
+        void setLevel(int level_, int error_code)
+        {
+            if (0 <= level_ && level_ < GRPC_COMPRESS_LEVEL_COUNT)
+                level = static_cast<grpc_compression_level>(level_);
+            else
+                throw Exception(error_code, "Compression level {} is out of range 0..{}", level_, GRPC_COMPRESS_LEVEL_COUNT - 1);
+        }
+    };

    /// Gets session's timeout from query info or from the server config.
    std::chrono::steady_clock::duration getSessionTimeout(const GRPCQueryInfo & query_info, const Poco::Util::AbstractConfiguration & config)
@ -293,15 +334,10 @@ namespace
            return std::nullopt;
        }

-        void setResultCompression(grpc_compression_algorithm algorithm, grpc_compression_level level)
+        void setTransportCompression(const TransportCompression & transport_compression)
        {
-            grpc_context.set_compression_algorithm(algorithm);
-            grpc_context.set_compression_level(level);
-        }
-
-        void setResultCompression(const ::clickhouse::grpc::Compression & compression)
-        {
-            setResultCompression(convertCompressionAlgorithm(compression.algorithm()), convertCompressionLevel(compression.level()));
+            grpc_context.set_compression_algorithm(transport_compression.algorithm);
+            grpc_context.set_compression_level(transport_compression.level);
        }

    protected:
@ -606,6 +642,9 @@ namespace
        void throwIfFailedToReadQueryInfo();
        bool isQueryCancelled();

+        void addQueryDetailsToResult();
+        void addOutputFormatToResult();
+        void addOutputColumnsNamesAndTypesToResult(const Block & headers);
        void addProgressToResult();
        void addTotalsToResult(const Block & totals);
        void addExtremesToResult(const Block & extremes);
@ -628,10 +667,12 @@ namespace
        ASTInsertQuery * insert_query = nullptr;
        String input_format;
        String input_data_delimiter;
+        CompressionMethod input_compression_method = CompressionMethod::None;
        PODArray<char> output;
        String output_format;
-        CompressionMethod compression_method = CompressionMethod::None;
-        int compression_level = 0;
+        bool send_output_columns_names_and_types = false;
+        CompressionMethod output_compression_method = CompressionMethod::None;
+        int output_compression_level = 0;

        uint64_t interactive_delay = 100000;
        bool send_exception_with_stacktrace = true;
@ -815,9 +856,9 @@ namespace
        if (!query_info.database().empty())
            query_context->setCurrentDatabase(query_info.database());

-        /// Apply compression settings for this call.
-        if (query_info.has_result_compression())
-            responder->setResultCompression(query_info.result_compression());
+        /// Apply transport compression for this call.
+        if (auto transport_compression = TransportCompression::fromQueryInfo(query_info))
+            responder->setTransportCompression(*transport_compression);

        /// The interactive delay will be used to show progress.
        interactive_delay = settings.interactive_delay;
@ -851,9 +892,19 @@ namespace
        if (output_format.empty())
            output_format = query_context->getDefaultFormat();

+        send_output_columns_names_and_types = query_info.send_output_columns();
+
        /// Choose compression.
-        compression_method = chooseCompressionMethod("", query_info.compression_type());
-        compression_level = query_info.compression_level();
+        String input_compression_method_str = query_info.input_compression_type();
+        if (input_compression_method_str.empty())
+            input_compression_method_str = query_info.obsolete_compression_type();
+        input_compression_method = chooseCompressionMethod("", input_compression_method_str);
+
+        String output_compression_method_str = query_info.output_compression_type();
+        if (output_compression_method_str.empty())
+            output_compression_method_str = query_info.obsolete_compression_type();
+        output_compression_method = chooseCompressionMethod("", output_compression_method_str);
+        output_compression_level = query_info.output_compression_level();

        /// Set callback to create and fill external tables
        query_context->setExternalTablesInitializer([this] (ContextPtr context)
@ -984,7 +1035,7 @@ namespace
            return {nullptr, 0}; /// no more input data
        });

-        read_buffer = wrapReadBufferWithCompressionMethod(std::move(read_buffer), compression_method);
+        read_buffer = wrapReadBufferWithCompressionMethod(std::move(read_buffer), input_compression_method);

        assert(!pipeline);
        auto source = query_context->getInputFormat(
@ -1105,6 +1156,9 @@ namespace

    void Call::generateOutput()
    {
+        /// We add query_id and time_zone to the first result anyway.
+        addQueryDetailsToResult();
+
        if (!io.pipeline.initialized() || io.pipeline.pushing())
            return;

@ -1112,13 +1166,13 @@ namespace
        if (io.pipeline.pulling())
            header = io.pipeline.getHeader();

-        if (compression_method != CompressionMethod::None)
+        if (output_compression_method != CompressionMethod::None)
            output.resize(DBMS_DEFAULT_BUFFER_SIZE); /// Must have enough space for compressed data.
        write_buffer = std::make_unique<WriteBufferFromVector<PODArray<char>>>(output);
        nested_write_buffer = static_cast<WriteBufferFromVector<PODArray<char>> *>(write_buffer.get());
-        if (compression_method != CompressionMethod::None)
+        if (output_compression_method != CompressionMethod::None)
        {
-            write_buffer = wrapWriteBufferWithCompressionMethod(std::move(write_buffer), compression_method, compression_level);
+            write_buffer = wrapWriteBufferWithCompressionMethod(std::move(write_buffer), output_compression_method, output_compression_level);
            compressing_write_buffer = write_buffer.get();
        }

@ -1144,6 +1198,9 @@ namespace
                return true;
            };

+            addOutputFormatToResult();
+            addOutputColumnsNamesAndTypesToResult(header);
+
            Block block;
            while (check_for_cancel())
            {
@ -1394,6 +1451,29 @@ namespace
        return false;
    }

+    void Call::addQueryDetailsToResult()
+    {
+        *result.mutable_query_id() = query_context->getClientInfo().current_query_id;
+        *result.mutable_time_zone() = DateLUT::instance().getTimeZone();
+    }
+
+    void Call::addOutputFormatToResult()
+    {
+        *result.mutable_output_format() = output_format;
+    }
+
+    void Call::addOutputColumnsNamesAndTypesToResult(const Block & header)
+    {
+        if (!send_output_columns_names_and_types)
+            return;
+        for (const auto & column : header)
+        {
+            auto & name_and_type = *result.add_output_columns();
+            *name_and_type.mutable_name() = column.name;
+            *name_and_type.mutable_type() = column.type->getName();
+        }
+    }
+
    void Call::addProgressToResult()
    {
        auto values = progress.fetchAndResetPiecewiseAtomically();
@ -1414,10 +1494,10 @@ namespace
            return;

        PODArray<char> memory;
-        if (compression_method != CompressionMethod::None)
+        if (output_compression_method != CompressionMethod::None)
            memory.resize(DBMS_DEFAULT_BUFFER_SIZE); /// Must have enough space for compressed data.
        std::unique_ptr<WriteBuffer> buf = std::make_unique<WriteBufferFromVector<PODArray<char>>>(memory);
-        buf = wrapWriteBufferWithCompressionMethod(std::move(buf), compression_method, compression_level);
+        buf = wrapWriteBufferWithCompressionMethod(std::move(buf), output_compression_method, output_compression_level);
        auto format = query_context->getOutputFormat(output_format, *buf, totals);
        format->write(materializeBlock(totals));
        format->finalize();
@ -1432,10 +1512,10 @@ namespace
            return;

        PODArray<char> memory;
-        if (compression_method != CompressionMethod::None)
+        if (output_compression_method != CompressionMethod::None)
            memory.resize(DBMS_DEFAULT_BUFFER_SIZE); /// Must have enough space for compressed data.
        std::unique_ptr<WriteBuffer> buf = std::make_unique<WriteBufferFromVector<PODArray<char>>>(memory);
-        buf = wrapWriteBufferWithCompressionMethod(std::move(buf), compression_method, compression_level);
+        buf = wrapWriteBufferWithCompressionMethod(std::move(buf), output_compression_method, output_compression_level);
        auto format = query_context->getOutputFormat(output_format, *buf, extremes);
        format->write(materializeBlock(extremes));
        format->finalize();
@ -1772,8 +1852,9 @@ void GRPCServer::start()
    builder.RegisterService(&grpc_service);
    builder.SetMaxSendMessageSize(iserver.config().getInt("grpc.max_send_message_size", -1));
    builder.SetMaxReceiveMessageSize(iserver.config().getInt("grpc.max_receive_message_size", -1));
-    builder.SetDefaultCompressionAlgorithm(parseCompressionAlgorithm(iserver.config().getString("grpc.compression", "none")));
-    builder.SetDefaultCompressionLevel(parseCompressionLevel(iserver.config().getString("grpc.compression_level", "none")));
+    auto default_transport_compression = TransportCompression::fromConfiguration(iserver.config());
+    builder.SetDefaultCompressionAlgorithm(default_transport_compression.algorithm);
+    builder.SetDefaultCompressionLevel(default_transport_compression.level);

    queue = builder.AddCompletionQueue();
    grpc_server = builder.BuildAndStart();
--- a/src/Server/HTTP/HTTPServerConnection.cpp
+++ b/src/Server/HTTP/HTTPServerConnection.cpp
@ -36,7 +36,7 @@ void HTTPServerConnection::run()

                if (request.isSecure())
                {
-                    size_t hsts_max_age = context->getSettings().hsts_max_age.value;
+                    size_t hsts_max_age = context->getSettingsRef().hsts_max_age.value;

                    if (hsts_max_age > 0)
                        response.add("Strict-Transport-Security", "max-age=" + std::to_string(hsts_max_age));
--- a/src/Server/TCPHandler.cpp
+++ b/src/Server/TCPHandler.cpp
@ -359,6 +359,7 @@ void TCPHandler::runImpl()
                            return true;

                        sendProgress();
+                        sendProfileEvents();
                        sendLogs();

                        return false;
--- a/Show More
+++ b/Show More
				`@ -1 +0,0 @@`
				`../../../en/engines/database-engines/materialized-mysql.md`