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Merge branch 'master' into filesystem-function

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flynn 2022-11-16 23:28:10 +08:00 committed by GitHub
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2
.clang-tidy
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@ -1,7 +1,7 @@
# To run clang-tidy from CMake, build ClickHouse with -DENABLE_CLANG_TIDY=1. To show all warnings, it is
# recommended to pass "-k0" to Ninja.
# Enable all checks + disale selected checks. Feel free to remove disabled checks from below list if
# Enable all checks + disable selected checks. Feel free to remove disabled checks from below list if
# a) the new check is not controversial (this includes many checks in readability-* and google-*) or
# b) too noisy (checks with > 100 new warnings are considered noisy, this includes e.g. cppcoreguidelines-*).

1
.gitattributes vendored
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@ -1,3 +1,4 @@
contrib/* linguist-vendored
*.h linguist-language=C++
tests/queries/0_stateless/data_json/* binary
tests/queries/0_stateless/*.reference -crlf

2
.github/ISSUE_TEMPLATE/85_bug-report.md vendored
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@ -13,6 +13,8 @@ assignees: ''
> A clear and concise description of what works not as it is supposed to.
> A link to reproducer in [https://fiddle.clickhouse.com/](https://fiddle.clickhouse.com/).
**Does it reproduce on recent release?**
[The list of releases](https://github.com/ClickHouse/ClickHouse/blob/master/utils/list-versions/version_date.tsv)

29
.github/ISSUE_TEMPLATE/96_installation-issues.md vendored Normal file
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@ -0,0 +1,29 @@
---
name: Installation issue
about: Issue with ClickHouse installation from https://clickhouse.com/docs/en/install/
title: ''
labels: comp-install
assignees: ''
---
**Installation type**
Packages, docker, single binary, curl?
**Source of the ClickHouse**
A link to the source. Or the command you've tried
**Expected result**
What you expected
**The actual result**
What you get
**How to reproduce**
* For Linux-based operating systems: provide a script for clear docker container from the official image
* For anything else: steps to reproduce on as much as possible clear system

2
.github/workflows/backport_branches.yml vendored
View File

@ -466,6 +466,7 @@ jobs:
- BuilderDebTsan
- BuilderDebDebug
runs-on: [self-hosted, style-checker]
if: ${{ success() || failure() }}
steps:
- name: Set envs
run: |
@ -504,6 +505,7 @@ jobs:
- BuilderBinDarwin
- BuilderBinDarwinAarch64
runs-on: [self-hosted, style-checker]
if: ${{ success() || failure() }}
steps:
- name: Set envs
run: |

2
.github/workflows/cancel.yml vendored
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@ -6,7 +6,7 @@ env:
on: # yamllint disable-line rule:truthy
workflow_run:
workflows: ["PullRequestCI", "ReleaseCI", "DocsCheck", "BackportPR"]
workflows: ["PullRequestCI", "ReleaseBranchCI", "DocsCheck", "BackportPR"]
types:
- requested
jobs:

2
.github/workflows/debug.yml vendored
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@ -2,7 +2,7 @@
name: Debug
'on':
[push, pull_request, release, workflow_dispatch]
[push, pull_request, release, workflow_dispatch, workflow_call]
jobs:
DebugInfo:

33
.github/workflows/jepsen.yml vendored
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@ -32,10 +32,41 @@ jobs:
mkdir -p "$TEMP_PATH"
cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
cd "$REPO_COPY/tests/ci"
python3 keeper_jepsen_check.py
python3 jepsen_check.py keeper
- name: Cleanup
if: always()
run: |
docker ps --quiet | xargs --no-run-if-empty docker kill ||:
docker ps --all --quiet | xargs --no-run-if-empty docker rm -f ||:
sudo rm -fr "$TEMP_PATH"
# ServerJepsenRelease:
# runs-on: [self-hosted, style-checker]
# if: ${{ always() }}
# needs: [KeeperJepsenRelease]
# steps:
# - name: Set envs
# run: |
# cat >> "$GITHUB_ENV" << 'EOF'
# TEMP_PATH=${{runner.temp}}/server_jepsen
# REPO_COPY=${{runner.temp}}/server_jepsen/ClickHouse
# EOF
# - name: Clear repository
# run: |
# sudo rm -fr "$GITHUB_WORKSPACE" && mkdir "$GITHUB_WORKSPACE"
# - name: Check out repository code
# uses: actions/checkout@v2
# with:
# fetch-depth: 0
# - name: Jepsen Test
# run: |
# sudo rm -fr "$TEMP_PATH"
# mkdir -p "$TEMP_PATH"
# cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
# cd "$REPO_COPY/tests/ci"
# python3 jepsen_check.py server
# - name: Cleanup
# if: always()
# run: |
# docker ps --quiet | xargs --no-run-if-empty docker kill ||:
# docker ps --all --quiet | xargs --no-run-if-empty docker rm -f ||:
# sudo rm -fr "$TEMP_PATH"

94
.github/workflows/master.yml vendored
View File

@ -974,6 +974,7 @@ jobs:
- BuilderDebTsan
- BuilderDebUBsan
runs-on: [self-hosted, style-checker]
if: ${{ success() || failure() }}
steps:
- name: Set envs
run: |
@ -1021,6 +1022,7 @@ jobs:
- BuilderBinClangTidy
- BuilderDebShared
runs-on: [self-hosted, style-checker]
if: ${{ success() || failure() }}
steps:
- name: Set envs
run: |
@ -1054,6 +1056,23 @@ jobs:
docker ps --quiet | xargs --no-run-if-empty docker kill ||:
docker ps --all --quiet | xargs --no-run-if-empty docker rm -f ||:
sudo rm -fr "$TEMP_PATH"
MarkReleaseReady:
needs:
- BuilderBinDarwin
- BuilderBinDarwinAarch64
- BuilderDebRelease
- BuilderDebAarch64
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: Mark Commit Release Ready
run: |
cd "$GITHUB_WORKSPACE/tests/ci"
python3 mark_release_ready.py
##############################################################################################
########################### FUNCTIONAl STATELESS TESTS #######################################
##############################################################################################
@ -2992,10 +3011,83 @@ jobs:
docker ps --quiet | xargs --no-run-if-empty docker kill ||:
docker ps --all --quiet | xargs --no-run-if-empty docker rm -f ||:
sudo rm -fr "$TEMP_PATH"
##############################################################################################
###################################### SQLANCER FUZZERS ######################################
##############################################################################################
SQLancerTestRelease:
needs: [BuilderDebRelease]
runs-on: [self-hosted, fuzzer-unit-tester]
steps:
- name: Set envs
run: |
cat >> "$GITHUB_ENV" << 'EOF'
TEMP_PATH=${{runner.temp}}/sqlancer_release
REPORTS_PATH=${{runner.temp}}/reports_dir
CHECK_NAME=SQLancer (release)
REPO_COPY=${{runner.temp}}/sqlancer_release/ClickHouse
EOF
- name: Download json reports
uses: actions/download-artifact@v2
with:
path: ${{ env.REPORTS_PATH }}
- name: Clear repository
run: |
sudo rm -fr "$GITHUB_WORKSPACE" && mkdir "$GITHUB_WORKSPACE"
- name: Check out repository code
uses: actions/checkout@v2
- name: SQLancer
run: |
sudo rm -fr "$TEMP_PATH"
mkdir -p "$TEMP_PATH"
cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
cd "$REPO_COPY/tests/ci"
python3 sqlancer_check.py "$CHECK_NAME"
- name: Cleanup
if: always()
run: |
docker ps --quiet | xargs --no-run-if-empty docker kill ||:
docker ps --all --quiet | xargs --no-run-if-empty docker rm -f ||:
sudo rm -fr "$TEMP_PATH"
SQLancerTestDebug:
needs: [BuilderDebDebug]
runs-on: [self-hosted, fuzzer-unit-tester]
steps:
- name: Set envs
run: |
cat >> "$GITHUB_ENV" << 'EOF'
TEMP_PATH=${{runner.temp}}/sqlancer_debug
REPORTS_PATH=${{runner.temp}}/reports_dir
CHECK_NAME=SQLancer (debug)
REPO_COPY=${{runner.temp}}/sqlancer_debug/ClickHouse
EOF
- name: Download json reports
uses: actions/download-artifact@v2
with:
path: ${{ env.REPORTS_PATH }}
- name: Clear repository
run: |
sudo rm -fr "$GITHUB_WORKSPACE" && mkdir "$GITHUB_WORKSPACE"
- name: Check out repository code
uses: actions/checkout@v2
- name: SQLancer
run: |
sudo rm -fr "$TEMP_PATH"
mkdir -p "$TEMP_PATH"
cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
cd "$REPO_COPY/tests/ci"
python3 sqlancer_check.py "$CHECK_NAME"
- name: Cleanup
if: always()
run: |
docker ps --quiet | xargs --no-run-if-empty docker kill ||:
docker ps --all --quiet | xargs --no-run-if-empty docker rm -f ||:
sudo rm -fr "$TEMP_PATH"
FinishCheck:
needs:
- DockerHubPush
- BuilderReport
- BuilderSpecialReport
- MarkReleaseReady
- FunctionalStatelessTestDebug0
- FunctionalStatelessTestDebug1
- FunctionalStatelessTestDebug2
@ -3051,6 +3143,8 @@ jobs:
- UnitTestsUBsan
- UnitTestsReleaseClang
- SharedBuildSmokeTest
- SQLancerTestRelease
- SQLancerTestDebug
runs-on: [self-hosted, style-checker]
steps:
- name: Clear repository

58
.github/workflows/nightly.yml vendored
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@ -10,6 +10,9 @@ env:
workflow_dispatch:
jobs:
Debug:
# The task for having a preserved ENV and event.json for later investigation
uses: ./.github/workflows/debug.yml
DockerHubPushAarch64:
runs-on: [self-hosted, style-checker-aarch64]
steps:
@ -122,3 +125,58 @@ jobs:
docker ps --quiet | xargs --no-run-if-empty docker kill ||:
docker ps --all --quiet | xargs --no-run-if-empty docker rm -f ||:
sudo rm -fr "$TEMP_PATH" "$CACHES_PATH"
SonarCloud:
runs-on: [self-hosted, builder]
env:
SONAR_SCANNER_VERSION: 4.7.0.2747
SONAR_SERVER_URL: "https://sonarcloud.io"
BUILD_WRAPPER_OUT_DIR: build_wrapper_output_directory # Directory where build-wrapper output will be placed
CC: clang-15
CXX: clang++-15
steps:
- uses: actions/checkout@v2
with:
fetch-depth: 0 # Shallow clones should be disabled for a better relevancy of analysis
submodules: true
- name: Set up JDK 11
uses: actions/setup-java@v1
with:
java-version: 11
- name: Download and set up sonar-scanner
env:
SONAR_SCANNER_DOWNLOAD_URL: https://binaries.sonarsource.com/Distribution/sonar-scanner-cli/sonar-scanner-cli-${{ env.SONAR_SCANNER_VERSION }}-linux.zip
run: |
mkdir -p "$HOME/.sonar"
curl -sSLo "$HOME/.sonar/sonar-scanner.zip" "${{ env.SONAR_SCANNER_DOWNLOAD_URL }}"
unzip -o "$HOME/.sonar/sonar-scanner.zip" -d "$HOME/.sonar/"
echo "$HOME/.sonar/sonar-scanner-${{ env.SONAR_SCANNER_VERSION }}-linux/bin" >> "$GITHUB_PATH"
- name: Download and set up build-wrapper
env:
BUILD_WRAPPER_DOWNLOAD_URL: ${{ env.SONAR_SERVER_URL }}/static/cpp/build-wrapper-linux-x86.zip
run: |
curl -sSLo "$HOME/.sonar/build-wrapper-linux-x86.zip" "${{ env.BUILD_WRAPPER_DOWNLOAD_URL }}"
unzip -o "$HOME/.sonar/build-wrapper-linux-x86.zip" -d "$HOME/.sonar/"
echo "$HOME/.sonar/build-wrapper-linux-x86" >> "$GITHUB_PATH"
- name: Set Up Build Tools
run: |
sudo apt-get update
sudo apt-get install -yq git cmake ccache python3 ninja-build
sudo bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)"
- name: Run build-wrapper
run: |
mkdir build
cd build
cmake ..
cd ..
build-wrapper-linux-x86-64 --out-dir ${{ env.BUILD_WRAPPER_OUT_DIR }} cmake --build build/
- name: Run sonar-scanner
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
run: |
sonar-scanner \
--define sonar.host.url="${{ env.SONAR_SERVER_URL }}" \
--define sonar.cfamily.build-wrapper-output="${{ env.BUILD_WRAPPER_OUT_DIR }}" \
--define sonar.projectKey="ClickHouse_ClickHouse" \
--define sonar.organization="clickhouse-java" \
--define sonar.exclusions="**/*.java,**/*.ts,**/*.js,**/*.css,**/*.sql"

78
.github/workflows/pull_request.yml vendored
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@ -112,7 +112,7 @@ jobs:
StyleCheck:
needs: DockerHubPush
runs-on: [self-hosted, style-checker]
if: ${{ success() || failure() }}
if: ${{ success() || failure() || always() }}
steps:
- name: Set envs
run: |
@ -2023,6 +2023,7 @@ jobs:
docker ps --all --quiet | xargs --no-run-if-empty docker rm -f ||:
sudo rm -fr "$TEMP_PATH"
TestsBugfixCheck:
needs: [CheckLabels, StyleCheck]
runs-on: [self-hosted, stress-tester]
steps:
- name: Set envs
@ -3490,6 +3491,77 @@ jobs:
docker ps --quiet | xargs --no-run-if-empty docker kill ||:
docker ps --all --quiet | xargs --no-run-if-empty docker rm -f ||:
sudo rm -fr "$TEMP_PATH"
##############################################################################################
###################################### SQLANCER FUZZERS ######################################
##############################################################################################
SQLancerTestRelease:
needs: [BuilderDebRelease]
runs-on: [self-hosted, fuzzer-unit-tester]
steps:
- name: Set envs
run: |
cat >> "$GITHUB_ENV" << 'EOF'
TEMP_PATH=${{runner.temp}}/sqlancer_release
REPORTS_PATH=${{runner.temp}}/reports_dir
CHECK_NAME=SQLancer (release)
REPO_COPY=${{runner.temp}}/sqlancer_release/ClickHouse
EOF
- name: Download json reports
uses: actions/download-artifact@v2
with:
path: ${{ env.REPORTS_PATH }}
- name: Clear repository
run: |
sudo rm -fr "$GITHUB_WORKSPACE" && mkdir "$GITHUB_WORKSPACE"
- name: Check out repository code
uses: actions/checkout@v2
- name: SQLancer
run: |
sudo rm -fr "$TEMP_PATH"
mkdir -p "$TEMP_PATH"
cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
cd "$REPO_COPY/tests/ci"
python3 sqlancer_check.py "$CHECK_NAME"
- name: Cleanup
if: always()
run: |
docker ps --quiet | xargs --no-run-if-empty docker kill ||:
docker ps --all --quiet | xargs --no-run-if-empty docker rm -f ||:
sudo rm -fr "$TEMP_PATH"
SQLancerTestDebug:
needs: [BuilderDebDebug]
runs-on: [self-hosted, fuzzer-unit-tester]
steps:
- name: Set envs
run: |
cat >> "$GITHUB_ENV" << 'EOF'
TEMP_PATH=${{runner.temp}}/sqlancer_debug
REPORTS_PATH=${{runner.temp}}/reports_dir
CHECK_NAME=SQLancer (debug)
REPO_COPY=${{runner.temp}}/sqlancer_debug/ClickHouse
EOF
- name: Download json reports
uses: actions/download-artifact@v2
with:
path: ${{ env.REPORTS_PATH }}
- name: Clear repository
run: |
sudo rm -fr "$GITHUB_WORKSPACE" && mkdir "$GITHUB_WORKSPACE"
- name: Check out repository code
uses: actions/checkout@v2
- name: SQLancer
run: |
sudo rm -fr "$TEMP_PATH"
mkdir -p "$TEMP_PATH"
cp -r "$GITHUB_WORKSPACE" "$TEMP_PATH"
cd "$REPO_COPY/tests/ci"
python3 sqlancer_check.py "$CHECK_NAME"
- name: Cleanup
if: always()
run: |
docker ps --quiet | xargs --no-run-if-empty docker kill ||:
docker ps --all --quiet | xargs --no-run-if-empty docker rm -f ||:
sudo rm -fr "$TEMP_PATH"
#############################################################################################
###################################### JEPSEN TESTS #########################################
#############################################################################################
@ -3500,7 +3572,6 @@ jobs:
if: contains(github.event.pull_request.labels.*.name, 'jepsen-test')
needs: [BuilderBinRelease]
uses: ./.github/workflows/jepsen.yml
FinishCheck:
needs:
- StyleCheck
@ -3508,6 +3579,7 @@ jobs:
- DockerServerImages
- CheckLabels
- BuilderReport
- BuilderSpecialReport
- FastTest
- FunctionalStatelessTestDebug0
- FunctionalStatelessTestDebug1
@ -3575,6 +3647,8 @@ jobs:
- SharedBuildSmokeTest
- CompatibilityCheck
- IntegrationTestsFlakyCheck
- SQLancerTestRelease
- SQLancerTestDebug
runs-on: [self-hosted, style-checker]
steps:
- name: Clear repository

20
.github/workflows/release_branches.yml vendored
View File

@ -541,6 +541,7 @@ jobs:
- BuilderDebMsan
- BuilderDebDebug
runs-on: [self-hosted, style-checker]
if: ${{ success() || failure() }}
steps:
- name: Set envs
run: |
@ -580,6 +581,7 @@ jobs:
- BuilderBinDarwin
- BuilderBinDarwinAarch64
runs-on: [self-hosted, style-checker]
if: ${{ success() || failure() }}
steps:
- name: Set envs
run: |
@ -613,6 +615,23 @@ jobs:
docker ps --quiet | xargs --no-run-if-empty docker kill ||:
docker ps --all --quiet | xargs --no-run-if-empty docker rm -f ||:
sudo rm -fr "$TEMP_PATH"
MarkReleaseReady:
needs:
- BuilderBinDarwin
- BuilderBinDarwinAarch64
- BuilderDebRelease
- BuilderDebAarch64
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: Mark Commit Release Ready
run: |
cd "$GITHUB_WORKSPACE/tests/ci"
python3 mark_release_ready.py
##############################################################################################
########################### FUNCTIONAl STATELESS TESTS #######################################
##############################################################################################
@ -1886,6 +1905,7 @@ jobs:
- DockerServerImages
- BuilderReport
- BuilderSpecialReport
- MarkReleaseReady
- FunctionalStatelessTestDebug0
- FunctionalStatelessTestDebug1
- FunctionalStatelessTestDebug2

4
.gitignore vendored
View File

@ -80,6 +80,7 @@ core
vgcore*
*.deb
*.tar.zst
*.build
*.upload
*.changes
@ -153,3 +154,6 @@ website/package-lock.json
/programs/server/metadata
/programs/server/store
# temporary test files
tests/queries/0_stateless/test_*
tests/queries/0_stateless/*.binary

3
.gitmodules vendored
View File

@ -287,3 +287,6 @@
[submodule "contrib/corrosion"]
path = contrib/corrosion
url = https://github.com/corrosion-rs/corrosion.git
[submodule "contrib/morton-nd"]
path = contrib/morton-nd
url = https://github.com/morton-nd/morton-nd

4
.snyk Normal file
View File

@ -0,0 +1,4 @@
# Snyk (https://snyk.io) policy file
exclude:
global:
- tests/**

183
CHANGELOG.md
View File

@ -1,6 +1,7 @@
### Table of Contents
**[ClickHouse release v22.10, 2022-10-25](#2210)**<br/>
**[ClickHouse release v22.9, 2022-09-22](#229)**<br/>
**[ClickHouse release v22.8, 2022-08-18](#228)**<br/>
**[ClickHouse release v22.8-lts, 2022-08-18](#228)**<br/>
**[ClickHouse release v22.7, 2022-07-21](#227)**<br/>
**[ClickHouse release v22.6, 2022-06-16](#226)**<br/>
**[ClickHouse release v22.5, 2022-05-19](#225)**<br/>
@ -10,10 +11,143 @@
**[ClickHouse release v22.1, 2022-01-18](#221)**<br/>
**[Changelog for 2021](https://clickhouse.com/docs/en/whats-new/changelog/2021/)**<br/>
### <a id="2210"></a> ClickHouse release 22.10, 2022-10-26
#### Backward Incompatible Change
* Rename cache commands: `show caches` -> `show filesystem caches`, `describe cache` -> `describe filesystem cache`. [#41508](https://github.com/ClickHouse/ClickHouse/pull/41508) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Remove support for the `WITH TIMEOUT` section for `LIVE VIEW`. This closes [#40557](https://github.com/ClickHouse/ClickHouse/issues/40557). [#42173](https://github.com/ClickHouse/ClickHouse/pull/42173) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Remove support for the `{database}` macro from the client's prompt. It was displayed incorrectly if the database was unspecified and it was not updated on `USE` statements. This closes [#25891](https://github.com/ClickHouse/ClickHouse/issues/25891). [#42508](https://github.com/ClickHouse/ClickHouse/pull/42508) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### New Feature
* Composable protocol configuration is added. Now different protocols can be set up with different listen hosts. Protocol wrappers such as PROXYv1 can be set up over any other protocols (TCP, TCP secure, MySQL, Postgres). [#41198](https://github.com/ClickHouse/ClickHouse/pull/41198) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
* Add `S3` as a new type of the destination of backups. Support BACKUP to S3 with as-is path/data structure. [#42333](https://github.com/ClickHouse/ClickHouse/pull/42333) ([Vitaly Baranov](https://github.com/vitlibar)), [#42232](https://github.com/ClickHouse/ClickHouse/pull/42232) ([Azat Khuzhin](https://github.com/azat)).
* Added functions (`randUniform`, `randNormal`, `randLogNormal`, `randExponential`, `randChiSquared`, `randStudentT`, `randFisherF`, `randBernoulli`, `randBinomial`, `randNegativeBinomial`, `randPoisson`) to generate random values according to the specified distributions. This closes [#21834](https://github.com/ClickHouse/ClickHouse/issues/21834). [#42411](https://github.com/ClickHouse/ClickHouse/pull/42411) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* An improvement for ClickHouse Keeper: add support for uploading snapshots to S3. S3 information can be defined inside `keeper_server.s3_snapshot`. [#41342](https://github.com/ClickHouse/ClickHouse/pull/41342) ([Antonio Andelic](https://github.com/antonio2368)).
* Added an aggregate function `analysisOfVariance` (`anova`) to perform a statistical test over several groups of normally distributed observations to find out whether all groups have the same mean or not. Original PR [#37872](https://github.com/ClickHouse/ClickHouse/issues/37872). [#42131](https://github.com/ClickHouse/ClickHouse/pull/42131) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Support limiting of temporary data stored on disk using settings `max_temporary_data_on_disk_size_for_user`/`max_temporary_data_on_disk_size_for_query` . [#40893](https://github.com/ClickHouse/ClickHouse/pull/40893) ([Vladimir C](https://github.com/vdimir)).
* Add setting `format_json_object_each_row_column_for_object_name` to write/parse object name as column value in JSONObjectEachRow format. [#41703](https://github.com/ClickHouse/ClickHouse/pull/41703) ([Kruglov Pavel](https://github.com/Avogar)).
* Add BLAKE3 hash-function to SQL. [#33435](https://github.com/ClickHouse/ClickHouse/pull/33435) ([BoloniniD](https://github.com/BoloniniD)).
* The function `javaHash` has been extended to integers. [#41131](https://github.com/ClickHouse/ClickHouse/pull/41131) ([JackyWoo](https://github.com/JackyWoo)).
* Add OpenTelemetry support to ON CLUSTER DDL (require `distributed_ddl_entry_format_version` to be set to 4). [#41484](https://github.com/ClickHouse/ClickHouse/pull/41484) ([Frank Chen](https://github.com/FrankChen021)).
* Added system table `asynchronous_insert_log`. It contains information about asynchronous inserts (including results of queries in fire-and-forget mode (with `wait_for_async_insert=0`)) for better introspection. [#42040](https://github.com/ClickHouse/ClickHouse/pull/42040) ([Anton Popov](https://github.com/CurtizJ)).
* Add support for methods `lz4`, `bz2`, `snappy` in HTTP's `Accept-Encoding` which is a non-standard extension to HTTP protocol. [#42071](https://github.com/ClickHouse/ClickHouse/pull/42071) ([Nikolay Degterinsky](https://github.com/evillique)).
* Adds Morton Coding (ZCurve) encode/decode functions. [#41753](https://github.com/ClickHouse/ClickHouse/pull/41753) ([Constantine Peresypkin](https://github.com/pkit)).
* Add support for `SET setting_name = DEFAULT`. [#42187](https://github.com/ClickHouse/ClickHouse/pull/42187) ([Filatenkov Artur](https://github.com/FArthur-cmd)).
#### Experimental Feature
* Added new infrastructure for query analysis and planning under the `allow_experimental_analyzer` setting. [#31796](https://github.com/ClickHouse/ClickHouse/pull/31796) ([Maksim Kita](https://github.com/kitaisreal)).
* Initial implementation of Kusto Query Language. Please don't use it. [#37961](https://github.com/ClickHouse/ClickHouse/pull/37961) ([Yong Wang](https://github.com/kashwy)).
#### Performance Improvement
* Relax the "Too many parts" threshold. This closes [#6551](https://github.com/ClickHouse/ClickHouse/issues/6551). Now ClickHouse will allow more parts in a partition if the average part size is large enough (at least 10 GiB). This allows to have up to petabytes of data in a single partition of a single table on a single server, which is possible using disk shelves or object storage. [#42002](https://github.com/ClickHouse/ClickHouse/pull/42002) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Implement operator precedence element parser to make the required stack size smaller. [#34892](https://github.com/ClickHouse/ClickHouse/pull/34892) ([Nikolay Degterinsky](https://github.com/evillique)).
* DISTINCT in order optimization leverage sorting properties of data streams. This improvement will enable reading in order for DISTINCT if applicable (before it was necessary to provide ORDER BY for columns in DISTINCT). [#41014](https://github.com/ClickHouse/ClickHouse/pull/41014) ([Igor Nikonov](https://github.com/devcrafter)).
* ColumnVector: optimize UInt8 index with AVX512VBMI. [#41247](https://github.com/ClickHouse/ClickHouse/pull/41247) ([Guo Wangyang](https://github.com/guowangy)).
* Optimize the lock contentions for `ThreadGroupStatus::mutex`. The performance experiments of **SSB** (Star Schema Benchmark) on the ICX device (Intel Xeon Platinum 8380 CPU, 80 cores, 160 threads) shows that this change could bring a **2.95x** improvement of the geomean of all subcases' QPS. [#41675](https://github.com/ClickHouse/ClickHouse/pull/41675) ([Zhiguo Zhou](https://github.com/ZhiguoZh)).
* Add `ldapr` capabilities to AArch64 builds. This is supported from Graviton 2+, Azure and GCP instances. Only appeared in clang-15 [not so long ago](https://github.com/llvm/llvm-project/commit/9609b5daffe9fd28d83d83da895abc5113f76c24). [#41778](https://github.com/ClickHouse/ClickHouse/pull/41778) ([Daniel Kutenin](https://github.com/danlark1)).
* Improve performance when comparing strings and one argument is an empty constant string. [#41870](https://github.com/ClickHouse/ClickHouse/pull/41870) ([Jiebin Sun](https://github.com/jiebinn)).
* Optimize `insertFrom` of ColumnAggregateFunction to share Aggregate State in some cases. [#41960](https://github.com/ClickHouse/ClickHouse/pull/41960) ([flynn](https://github.com/ucasfl)).
* Make writing to `azure_blob_storage` disks faster (respect `max_single_part_upload_size` instead of writing a block per each buffer size). Inefficiency mentioned in [#41754](https://github.com/ClickHouse/ClickHouse/issues/41754). [#42041](https://github.com/ClickHouse/ClickHouse/pull/42041) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Make thread ids in the process list and query_log unique to avoid waste. [#42180](https://github.com/ClickHouse/ClickHouse/pull/42180) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Support skipping cache completely (both download to cache and reading cached data) in case the requested read range exceeds the threshold defined by cache setting `bypass_cache_threashold`, requires to be enabled with `enable_bypass_cache_with_threshold`). [#42418](https://github.com/ClickHouse/ClickHouse/pull/42418) ([Han Shukai](https://github.com/KinderRiven)). This helps on slow local disks.
#### Improvement
* Add setting `allow_implicit_no_password`: in combination with `allow_no_password` it forbids creating a user with no password unless `IDENTIFIED WITH no_password` is explicitly specified. [#41341](https://github.com/ClickHouse/ClickHouse/pull/41341) ([Nikolay Degterinsky](https://github.com/evillique)).
* Embedded Keeper will always start in the background allowing ClickHouse to start without achieving quorum. [#40991](https://github.com/ClickHouse/ClickHouse/pull/40991) ([Antonio Andelic](https://github.com/antonio2368)).
* Made reestablishing a new connection to ZooKeeper more reactive in case of expiration of the previous one. Previously there was a task which spawns every minute by default and thus a table could be in readonly state for about this time. [#41092](https://github.com/ClickHouse/ClickHouse/pull/41092) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Now projections can be used with zero copy replication (zero-copy replication is a non-production feature). [#41147](https://github.com/ClickHouse/ClickHouse/pull/41147) ([alesapin](https://github.com/alesapin)).
* Support expression `(EXPLAIN SELECT ...)` in a subquery. Queries like `SELECT * FROM (EXPLAIN PIPELINE SELECT col FROM TABLE ORDER BY col)` became valid. [#40630](https://github.com/ClickHouse/ClickHouse/pull/40630) ([Vladimir C](https://github.com/vdimir)).
* Allow changing `async_insert_max_data_size` or `async_insert_busy_timeout_ms` in scope of query. E.g. user wants to insert data rarely and she doesn't have access to the server config to tune default settings. [#40668](https://github.com/ClickHouse/ClickHouse/pull/40668) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Improvements for reading from remote filesystems, made threadpool size for reads/writes configurable. Closes [#41070](https://github.com/ClickHouse/ClickHouse/issues/41070). [#41011](https://github.com/ClickHouse/ClickHouse/pull/41011) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Support all combinators combination in WindowTransform/arratReduce*/initializeAggregation/aggregate functions versioning. Previously combinators like `ForEach/Resample/Map` didn't work in these places, using them led to exception like`State function ... inserts results into non-state column`. [#41107](https://github.com/ClickHouse/ClickHouse/pull/41107) ([Kruglov Pavel](https://github.com/Avogar)).
* Add function `tryDecrypt` that returns NULL when decrypt fails (e.g. decrypt with incorrect key) instead of throwing an exception. [#41206](https://github.com/ClickHouse/ClickHouse/pull/41206) ([Duc Canh Le](https://github.com/canhld94)).
* Add the `unreserved_space` column to the `system.disks` table to check how much space is not taken by reservations per disk. [#41254](https://github.com/ClickHouse/ClickHouse/pull/41254) ([filimonov](https://github.com/filimonov)).
* Support s3 authorization headers in table function arguments. [#41261](https://github.com/ClickHouse/ClickHouse/pull/41261) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Add support for MultiRead in Keeper and internal ZooKeeper client (this is an extension to ZooKeeper protocol, only available in ClickHouse Keeper). [#41410](https://github.com/ClickHouse/ClickHouse/pull/41410) ([Antonio Andelic](https://github.com/antonio2368)).
* Add support for decimal type comparing with floating point literal in IN operator. [#41544](https://github.com/ClickHouse/ClickHouse/pull/41544) ([liang.huang](https://github.com/lhuang09287750)).
* Allow readable size values (like `1TB`) in cache config. [#41688](https://github.com/ClickHouse/ClickHouse/pull/41688) ([Kseniia Sumarokova](https://github.com/kssenii)).
* ClickHouse could cache stale DNS entries for some period of time (15 seconds by default) until the cache won't be updated asynchronously. During these periods ClickHouse can nevertheless try to establish a connection and produce errors. This behavior is fixed. [#41707](https://github.com/ClickHouse/ClickHouse/pull/41707) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Add interactive history search with fzf-like utility (fzf/sk) for `clickhouse-client`/`clickhouse-local` (note you can use `FZF_DEFAULT_OPTS`/`SKIM_DEFAULT_OPTIONS` to additionally configure the behavior). [#41730](https://github.com/ClickHouse/ClickHouse/pull/41730) ([Azat Khuzhin](https://github.com/azat)).
* Only allow clients connecting to a secure server with an invalid certificate only to proceed with the '--accept-certificate' flag. [#41743](https://github.com/ClickHouse/ClickHouse/pull/41743) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
* Add function `tryBase58Decode`, similar to the existing function `tryBase64Decode`. [#41824](https://github.com/ClickHouse/ClickHouse/pull/41824) ([Robert Schulze](https://github.com/rschu1ze)).
* Improve feedback when replacing partition with different primary key. Fixes [#34798](https://github.com/ClickHouse/ClickHouse/issues/34798). [#41838](https://github.com/ClickHouse/ClickHouse/pull/41838) ([Salvatore](https://github.com/tbsal)).
* Fix parallel parsing: segmentator now checks `max_block_size`. This fixed memory overallocation in case of parallel parsing and small LIMIT. [#41852](https://github.com/ClickHouse/ClickHouse/pull/41852) ([Vitaly Baranov](https://github.com/vitlibar)).
* Don't add "TABLE_IS_DROPPED" exception to `system.errors` if it's happened during SELECT from a system table and was ignored. [#41908](https://github.com/ClickHouse/ClickHouse/pull/41908) ([AlfVII](https://github.com/AlfVII)).
* Improve option `enable_extended_results_for_datetime_functions` to return results of type DateTime64 for functions `toStartOfDay`, `toStartOfHour`, `toStartOfFifteenMinutes`, `toStartOfTenMinutes`, `toStartOfFiveMinutes`, `toStartOfMinute` and `timeSlot`. [#41910](https://github.com/ClickHouse/ClickHouse/pull/41910) ([Roman Vasin](https://github.com/rvasin)).
* Improve `DateTime` type inference for text formats. Now it respects setting `date_time_input_format` and doesn't try to infer datetimes from numbers as timestamps. Closes [#41389](https://github.com/ClickHouse/ClickHouse/issues/41389) Closes [#42206](https://github.com/ClickHouse/ClickHouse/issues/42206). [#41912](https://github.com/ClickHouse/ClickHouse/pull/41912) ([Kruglov Pavel](https://github.com/Avogar)).
* Remove confusing warning when inserting with `perform_ttl_move_on_insert` = false. [#41980](https://github.com/ClickHouse/ClickHouse/pull/41980) ([Vitaly Baranov](https://github.com/vitlibar)).
* Allow user to write `countState(*)` similar to `count(*)`. This closes [#9338](https://github.com/ClickHouse/ClickHouse/issues/9338). [#41983](https://github.com/ClickHouse/ClickHouse/pull/41983) ([Amos Bird](https://github.com/amosbird)).
* Fix `rankCorr` size overflow. [#42020](https://github.com/ClickHouse/ClickHouse/pull/42020) ([Duc Canh Le](https://github.com/canhld94)).
* Added an option to specify an arbitrary string as an environment name in the Sentry's config for more handy reports. [#42037](https://github.com/ClickHouse/ClickHouse/pull/42037) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Fix parsing out-of-range Date from CSV. [#42044](https://github.com/ClickHouse/ClickHouse/pull/42044) ([Andrey Zvonov](https://github.com/zvonand)).
* `parseDataTimeBestEffort` now supports comma between date and time. Closes [#42038](https://github.com/ClickHouse/ClickHouse/issues/42038). [#42049](https://github.com/ClickHouse/ClickHouse/pull/42049) ([flynn](https://github.com/ucasfl)).
* Improved stale replica recovery process for `ReplicatedMergeTree`. If a lost replica has some parts which are absent from a healthy replica, but these parts should appear in the future according to the replication queue of the healthy replica, then the lost replica will keep such parts instead of detaching them. [#42134](https://github.com/ClickHouse/ClickHouse/pull/42134) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Add a possibility to use `Date32` arguments for date_diff function. Fix issue in date_diff function when using DateTime64 arguments with a start date before Unix epoch and end date after Unix epoch. [#42308](https://github.com/ClickHouse/ClickHouse/pull/42308) ([Roman Vasin](https://github.com/rvasin)).
* When uploading big parts to Minio, 'Complete Multipart Upload' can take a long time. Minio sends heartbeats every 10 seconds (see https://github.com/minio/minio/pull/7198). But clickhouse times out earlier, because the default send/receive timeout is [set](https://github.com/ClickHouse/ClickHouse/blob/cc24fcd6d5dfb67f5f66f5483e986bd1010ad9cf/src/IO/S3/PocoHTTPClient.cpp#L123) to 5 seconds. [#42321](https://github.com/ClickHouse/ClickHouse/pull/42321) ([filimonov](https://github.com/filimonov)).
* Fix rarely invalid cast of aggregate state types with complex types such as Decimal. This fixes [#42408](https://github.com/ClickHouse/ClickHouse/issues/42408). [#42417](https://github.com/ClickHouse/ClickHouse/pull/42417) ([Amos Bird](https://github.com/amosbird)).
* Allow to use `Date32` arguments for `dateName` function. [#42554](https://github.com/ClickHouse/ClickHouse/pull/42554) ([Roman Vasin](https://github.com/rvasin)).
* Now filters with NULL literals will be used during index analysis. [#34063](https://github.com/ClickHouse/ClickHouse/issues/34063). [#41842](https://github.com/ClickHouse/ClickHouse/pull/41842) ([Amos Bird](https://github.com/amosbird)).
* Merge parts if every part in the range is older than a certain threshold. The threshold can be set by using `min_age_to_force_merge_seconds`. This closes [#35836](https://github.com/ClickHouse/ClickHouse/issues/35836). [#42423](https://github.com/ClickHouse/ClickHouse/pull/42423) ([Antonio Andelic](https://github.com/antonio2368)). This is continuation of [#39550i](https://github.com/ClickHouse/ClickHouse/pull/39550) by [@fastio](https://github.com/fastio) who implemented most of the logic.
* Improve the time to recover lost keeper connections. [#42541](https://github.com/ClickHouse/ClickHouse/pull/42541) ([Raúl Marín](https://github.com/Algunenano)).
#### Build/Testing/Packaging Improvement
* Add fuzzer for table definitions [#40096](https://github.com/ClickHouse/ClickHouse/pull/40096) ([Anton Popov](https://github.com/CurtizJ)). This represents the biggest advancement for ClickHouse testing in this year so far.
* Beta version of the ClickHouse Cloud service is released: [https://clickhouse.cloud/](https://clickhouse.cloud/). It provides the easiest way to use ClickHouse (even slightly easier than the single-command installation).
* Added support of WHERE clause generation to AST Fuzzer and possibility to add or remove ORDER BY and WHERE clause. [#38519](https://github.com/ClickHouse/ClickHouse/pull/38519) ([Ilya Yatsishin](https://github.com/qoega)).
* Aarch64 binaries now require at least ARMv8.2, released in 2016. Most notably, this enables use of ARM LSE, i.e. native atomic operations. Also, CMake build option "NO_ARMV81_OR_HIGHER" has been added to allow compilation of binaries for older ARMv8.0 hardware, e.g. Raspberry Pi 4. [#41610](https://github.com/ClickHouse/ClickHouse/pull/41610) ([Robert Schulze](https://github.com/rschu1ze)).
* Allow building ClickHouse with Musl (small changes after it was already supported but broken). [#41987](https://github.com/ClickHouse/ClickHouse/pull/41987) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Add the `$CLICKHOUSE_CRONFILE` file checking to avoid running the `sed` command to get the file not found error on install. [#42081](https://github.com/ClickHouse/ClickHouse/pull/42081) ([Chun-Sheng, Li](https://github.com/peter279k)).
* Update cctz to `2022e` to support the new timezone changes. Palestine transitions are now Saturdays at 02:00. Simplify three Ukraine zones into one. Jordan and Syria switch from +02/+03 with DST to year-round +03. (https://data.iana.org/time-zones/tzdb/NEWS). This closes [#42252](https://github.com/ClickHouse/ClickHouse/issues/42252). [#42327](https://github.com/ClickHouse/ClickHouse/pull/42327) ([Alexey Milovidov](https://github.com/alexey-milovidov)). [#42273](https://github.com/ClickHouse/ClickHouse/pull/42273) ([Dom Del Nano](https://github.com/ddelnano)).
* Add Rust code support into ClickHouse with BLAKE3 hash-function library as an example. [#33435](https://github.com/ClickHouse/ClickHouse/pull/33435) ([BoloniniD](https://github.com/BoloniniD)).
#### Bug Fix (user-visible misbehavior in official stable or prestable release)
* Choose correct aggregation method for `LowCardinality` with big integer types. [#42342](https://github.com/ClickHouse/ClickHouse/pull/42342) ([Duc Canh Le](https://github.com/canhld94)).
* Several fixes for `web` disk. [#41652](https://github.com/ClickHouse/ClickHouse/pull/41652) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fixes an issue that causes docker run to fail if `https_port` is not present in config. [#41693](https://github.com/ClickHouse/ClickHouse/pull/41693) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
* Mutations were not cancelled properly on server shutdown or `SYSTEM STOP MERGES` query and cancellation might take long time, it's fixed. [#41699](https://github.com/ClickHouse/ClickHouse/pull/41699) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Fix wrong result of queries with `ORDER BY` or `GROUP BY` by columns from prefix of sorting key, wrapped into monotonic functions, with enable "read in order" optimization (settings `optimize_read_in_order` and `optimize_aggregation_in_order`). [#41701](https://github.com/ClickHouse/ClickHouse/pull/41701) ([Anton Popov](https://github.com/CurtizJ)).
* Fix possible crash in `SELECT` from `Merge` table with enabled `optimize_monotonous_functions_in_order_by` setting. Fixes [#41269](https://github.com/ClickHouse/ClickHouse/issues/41269). [#41740](https://github.com/ClickHouse/ClickHouse/pull/41740) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Fixed "Part ... intersects part ..." error that might happen in extremely rare cases if replica was restarted just after detaching some part as broken. [#41741](https://github.com/ClickHouse/ClickHouse/pull/41741) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Don't allow to create or alter merge tree tables with column name `_row_exists`, which is reserved for lightweight delete. Fixed [#41716](https://github.com/ClickHouse/ClickHouse/issues/41716). [#41763](https://github.com/ClickHouse/ClickHouse/pull/41763) ([Jianmei Zhang](https://github.com/zhangjmruc)).
* Fix a bug that CORS headers are missing in some HTTP responses. [#41792](https://github.com/ClickHouse/ClickHouse/pull/41792) ([Frank Chen](https://github.com/FrankChen021)).
* 22.9 might fail to startup `ReplicatedMergeTree` table if that table was created by 20.3 or older version and was never altered, it's fixed. Fixes [#41742](https://github.com/ClickHouse/ClickHouse/issues/41742). [#41796](https://github.com/ClickHouse/ClickHouse/pull/41796) ([Alexander Tokmakov](https://github.com/tavplubix)).
* When the batch sending fails for some reason, it cannot be automatically recovered, and if it is not processed in time, it will lead to accumulation, and the printed error message will become longer and longer, which will cause the http thread to block. [#41813](https://github.com/ClickHouse/ClickHouse/pull/41813) ([zhongyuankai](https://github.com/zhongyuankai)).
* Fix compact parts with compressed marks setting. Fixes [#41783](https://github.com/ClickHouse/ClickHouse/issues/41783) and [#41746](https://github.com/ClickHouse/ClickHouse/issues/41746). [#41823](https://github.com/ClickHouse/ClickHouse/pull/41823) ([alesapin](https://github.com/alesapin)).
* Old versions of Replicated database don't have a special marker in [Zoo]Keeper. We need to check only whether the node contains come obscure data instead of special mark. [#41875](https://github.com/ClickHouse/ClickHouse/pull/41875) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Fix possible exception in fs cache. [#41884](https://github.com/ClickHouse/ClickHouse/pull/41884) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fix `use_environment_credentials` for s3 table function. [#41970](https://github.com/ClickHouse/ClickHouse/pull/41970) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fixed "Directory already exists and is not empty" error on detaching broken part that might prevent `ReplicatedMergeTree` table from starting replication. Fixes [#40957](https://github.com/ClickHouse/ClickHouse/issues/40957). [#41981](https://github.com/ClickHouse/ClickHouse/pull/41981) ([Alexander Tokmakov](https://github.com/tavplubix)).
* `toDateTime64` now returns the same output with negative integer and float arguments. [#42025](https://github.com/ClickHouse/ClickHouse/pull/42025) ([Robert Schulze](https://github.com/rschu1ze)).
* Fix write into `azure_blob_storage`. Partially closes [#41754](https://github.com/ClickHouse/ClickHouse/issues/41754). [#42034](https://github.com/ClickHouse/ClickHouse/pull/42034) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fix the `bzip2` decoding issue for specific `bzip2` files. [#42046](https://github.com/ClickHouse/ClickHouse/pull/42046) ([Nikolay Degterinsky](https://github.com/evillique)).
* Fix SQL function `toLastDayOfMonth` with setting "enable_extended_results_for_datetime_functions = 1" at the beginning of the extended range (January 1900). - Fix SQL function "toRelativeWeekNum()" with setting "enable_extended_results_for_datetime_functions = 1" at the end of extended range (December 2299). - Improve the performance of for SQL functions "toISOYear()", "toFirstDayNumOfISOYearIndex()" and "toYearWeekOfNewyearMode()" by avoiding unnecessary index arithmetics. [#42084](https://github.com/ClickHouse/ClickHouse/pull/42084) ([Roman Vasin](https://github.com/rvasin)).
* The maximum size of fetches for each table accidentally was set to 8 while the pool size could be bigger. Now the maximum size of fetches for table is equal to the pool size. [#42090](https://github.com/ClickHouse/ClickHouse/pull/42090) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* A table might be shut down and a dictionary might be detached before checking if can be dropped without breaking dependencies between table, it's fixed. Fixes [#41982](https://github.com/ClickHouse/ClickHouse/issues/41982). [#42106](https://github.com/ClickHouse/ClickHouse/pull/42106) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Fix bad inefficiency of `remote_filesystem_read_method=read` with filesystem cache. Closes [#42125](https://github.com/ClickHouse/ClickHouse/issues/42125). [#42129](https://github.com/ClickHouse/ClickHouse/pull/42129) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fix possible timeout exception for distributed queries with use_hedged_requests = 0. [#42130](https://github.com/ClickHouse/ClickHouse/pull/42130) ([Azat Khuzhin](https://github.com/azat)).
* Fixed a minor bug inside function `runningDifference` in case of using it with `Date32` type. Previously `Date` was used and it may cause some logical errors like `Bad cast from type DB::ColumnVector<int> to DB::ColumnVector<unsigned short>'`. [#42143](https://github.com/ClickHouse/ClickHouse/pull/42143) ([Alfred Xu](https://github.com/sperlingxx)).
* Fix reusing of files > 4GB from base backup. [#42146](https://github.com/ClickHouse/ClickHouse/pull/42146) ([Azat Khuzhin](https://github.com/azat)).
* DISTINCT in order fails with LOGICAL_ERROR if first column in sorting key contains function. [#42186](https://github.com/ClickHouse/ClickHouse/pull/42186) ([Igor Nikonov](https://github.com/devcrafter)).
* Fix a bug with projections and the `aggregate_functions_null_for_empty` setting. This bug is very rare and appears only if you enable the `aggregate_functions_null_for_empty` setting in the server's config. This closes [#41647](https://github.com/ClickHouse/ClickHouse/issues/41647). [#42198](https://github.com/ClickHouse/ClickHouse/pull/42198) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Fix read from `Buffer` tables with read in order desc. [#42236](https://github.com/ClickHouse/ClickHouse/pull/42236) ([Duc Canh Le](https://github.com/canhld94)).
* Fix a bug which prevents ClickHouse to start when `background_pool_size setting` is set on default profile but `background_merges_mutations_concurrency_ratio` is not. [#42315](https://github.com/ClickHouse/ClickHouse/pull/42315) ([nvartolomei](https://github.com/nvartolomei)).
* `ALTER UPDATE` of attached part (with columns different from table schema) could create an invalid `columns.txt` metadata on disk. Reading from such part could fail with errors or return invalid data. Fixes [#42161](https://github.com/ClickHouse/ClickHouse/issues/42161). [#42319](https://github.com/ClickHouse/ClickHouse/pull/42319) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Setting `additional_table_filters` were not applied to `Distributed` storage. Fixes [#41692](https://github.com/ClickHouse/ClickHouse/issues/41692). [#42322](https://github.com/ClickHouse/ClickHouse/pull/42322) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Fix a data race in query finish/cancel. This closes [#42346](https://github.com/ClickHouse/ClickHouse/issues/42346). [#42362](https://github.com/ClickHouse/ClickHouse/pull/42362) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* This reverts [#40217](https://github.com/ClickHouse/ClickHouse/issues/40217) which introduced a regression in date/time functions. [#42367](https://github.com/ClickHouse/ClickHouse/pull/42367) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Fix assert cast in join on falsy condition, Close [#42380](https://github.com/ClickHouse/ClickHouse/issues/42380). [#42407](https://github.com/ClickHouse/ClickHouse/pull/42407) ([Vladimir C](https://github.com/vdimir)).
* Fix buffer overflow in the processing of Decimal data types. This closes [#42451](https://github.com/ClickHouse/ClickHouse/issues/42451). [#42465](https://github.com/ClickHouse/ClickHouse/pull/42465) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* `AggregateFunctionQuantile` now correctly works with UInt128 columns. Previously, the quantile state interpreted `UInt128` columns as `Int128` which could have led to incorrect results. [#42473](https://github.com/ClickHouse/ClickHouse/pull/42473) ([Antonio Andelic](https://github.com/antonio2368)).
* Fix bad_cast assert during INSERT into `Annoy` indexes over non-Float32 columns. `Annoy` indices is an experimental feature. [#42485](https://github.com/ClickHouse/ClickHouse/pull/42485) ([Robert Schulze](https://github.com/rschu1ze)).
* Arithmetic operator with Date or DateTime and 128 or 256-bit integer was referencing uninitialized memory. [#42453](https://github.com/ClickHouse/ClickHouse/issues/42453). [#42573](https://github.com/ClickHouse/ClickHouse/pull/42573) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Fix unexpected table loading error when partition key contains alias function names during server upgrade. [#36379](https://github.com/ClickHouse/ClickHouse/pull/36379) ([Amos Bird](https://github.com/amosbird)).
### <a id="229"></a> ClickHouse release 22.9, 2022-09-22
#### Backward Incompatible Change
* Upgrade from 20.3 and older to 22.9 and newer should be done through an intermediate version if there are any `ReplicatedMergeTree` tables, otherwise server with the new version will not start. [#40641](https://github.com/ClickHouse/ClickHouse/pull/40641) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Remove the functions `accurate_Cast` and `accurate_CastOrNull` (they are different to `accurateCast` and `accurateCastOrNull` by underscore in the name and they are not affected by the value of `cast_keep_nullable` setting). These functions were undocumented, untested, unused, and unneeded. They appeared to be alive due to code generalization. [#40682](https://github.com/ClickHouse/ClickHouse/pull/40682) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Add a test to ensure that every new table function will be documented. See [#40649](https://github.com/ClickHouse/ClickHouse/issues/40649). Rename table function `MeiliSearch` to `meilisearch`. [#40709](https://github.com/ClickHouse/ClickHouse/pull/40709) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
@ -21,6 +155,7 @@
* Make interpretation of YAML configs to be more conventional. [#41044](https://github.com/ClickHouse/ClickHouse/pull/41044) ([Vitaly Baranov](https://github.com/vitlibar)).
#### New Feature
* Support `insert_quorum = 'auto'` to use majority number. [#39970](https://github.com/ClickHouse/ClickHouse/pull/39970) ([Sachin](https://github.com/SachinSetiya)).
* Add embedded dashboards to ClickHouse server. This is a demo project about how to achieve 90% results with 1% effort using ClickHouse features. [#40461](https://github.com/ClickHouse/ClickHouse/pull/40461) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Added new settings constraint writability kind `changeable_in_readonly`. [#40631](https://github.com/ClickHouse/ClickHouse/pull/40631) ([Sergei Trifonov](https://github.com/serxa)).
@ -38,6 +173,7 @@
* Improvement for in-memory data parts: remove completely processed WAL files. [#40592](https://github.com/ClickHouse/ClickHouse/pull/40592) ([Azat Khuzhin](https://github.com/azat)).
#### Performance Improvement
* Implement compression of marks and primary key. Close [#34437](https://github.com/ClickHouse/ClickHouse/issues/34437). [#37693](https://github.com/ClickHouse/ClickHouse/pull/37693) ([zhongyuankai](https://github.com/zhongyuankai)).
* Allow to load marks with threadpool in advance. Regulated by setting `load_marks_asynchronously` (default: 0). [#40821](https://github.com/ClickHouse/ClickHouse/pull/40821) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Virtual filesystem over s3 will use random object names split into multiple path prefixes for better performance on AWS. [#40968](https://github.com/ClickHouse/ClickHouse/pull/40968) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
@ -58,6 +194,7 @@
* Parallel hash JOIN for Float data types might be suboptimal. Make it better. [#41183](https://github.com/ClickHouse/ClickHouse/pull/41183) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### Improvement
* During startup and ATTACH call, `ReplicatedMergeTree` tables will be readonly until the ZooKeeper connection is made and the setup is finished. [#40148](https://github.com/ClickHouse/ClickHouse/pull/40148) ([Antonio Andelic](https://github.com/antonio2368)).
* Add `enable_extended_results_for_datetime_functions` option to return results of type Date32 for functions toStartOfYear, toStartOfISOYear, toStartOfQuarter, toStartOfMonth, toStartOfWeek, toMonday and toLastDayOfMonth when argument is Date32 or DateTime64, otherwise results of Date type are returned. For compatibility reasons default value is ‘0’. [#41214](https://github.com/ClickHouse/ClickHouse/pull/41214) ([Roman Vasin](https://github.com/rvasin)).
* For security and stability reasons, CatBoost models are no longer evaluated within the ClickHouse server. Instead, the evaluation is now done in the clickhouse-library-bridge, a separate process that loads the catboost library and communicates with the server process via HTTP. [#40897](https://github.com/ClickHouse/ClickHouse/pull/40897) ([Robert Schulze](https://github.com/rschu1ze)). [#39629](https://github.com/ClickHouse/ClickHouse/pull/39629) ([Robert Schulze](https://github.com/rschu1ze)).
@ -108,6 +245,7 @@
* Add `has_lightweight_delete` to system.parts. [#41564](https://github.com/ClickHouse/ClickHouse/pull/41564) ([Kseniia Sumarokova](https://github.com/kssenii)).
#### Build/Testing/Packaging Improvement
* Enforce documentation for every setting. [#40644](https://github.com/ClickHouse/ClickHouse/pull/40644) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Enforce documentation for every current metric. [#40645](https://github.com/ClickHouse/ClickHouse/pull/40645) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Enforce documentation for every profile event counter. Write the documentation where it was missing. [#40646](https://github.com/ClickHouse/ClickHouse/pull/40646) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
@ -217,15 +355,16 @@
* Fix read bytes/rows in X-ClickHouse-Summary with materialized views. [#41586](https://github.com/ClickHouse/ClickHouse/pull/41586) ([Raúl Marín](https://github.com/Algunenano)).
* Fix possible `pipeline stuck` exception for queries with `OFFSET`. The error was found with `enable_optimize_predicate_expression = 0` and always false condition in `WHERE`. Fixes [#41383](https://github.com/ClickHouse/ClickHouse/issues/41383). [#41588](https://github.com/ClickHouse/ClickHouse/pull/41588) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
### <a id="228"></a> ClickHouse release 22.8, 2022-08-18
### <a id="228"></a> ClickHouse release 22.8-lts, 2022-08-18
#### Backward Incompatible Change
* Extended range of `Date32` and `DateTime64` to support dates from the year 1900 to 2299. In previous versions, the supported interval was only from the year 1925 to 2283. The implementation is using the proleptic Gregorian calendar (which is conformant with [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601):2004 (clause 3.2.1 The Gregorian calendar)) instead of accounting for historical transitions from the Julian to the Gregorian calendar. This change affects implementation-specific behavior for out-of-range arguments. E.g. if in previous versions the value of `1899-01-01` was clamped to `1925-01-01`, in the new version it will be clamped to `1900-01-01`. It changes the behavior of rounding with `toStartOfInterval` if you pass `INTERVAL 3 QUARTER` up to one quarter because the intervals are counted from an implementation-specific point of time. Closes [#28216](https://github.com/ClickHouse/ClickHouse/issues/28216), improves [#38393](https://github.com/ClickHouse/ClickHouse/issues/38393). [#39425](https://github.com/ClickHouse/ClickHouse/pull/39425) ([Roman Vasin](https://github.com/rvasin)).
* Now, all relevant dictionary sources respect `remote_url_allow_hosts` setting. It was already done for HTTP, Cassandra, Redis. Added ClickHouse, MongoDB, MySQL, PostgreSQL. Host is checked only for dictionaries created from DDL. [#39184](https://github.com/ClickHouse/ClickHouse/pull/39184) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Make the remote filesystem cache composable, allow not to evict certain files (regarding idx, mrk, ..), delete old cache version. Now it is possible to configure cache over Azure blob storage disk, over Local disk, over StaticWeb disk, etc. This PR is marked backward incompatible because cache configuration changes and in order for cache to work need to update the config file. Old cache will still be used with new configuration. The server will startup fine with the old cache configuration. Closes https://github.com/ClickHouse/ClickHouse/issues/36140. Closes https://github.com/ClickHouse/ClickHouse/issues/37889. ([Kseniia Sumarokova](https://github.com/kssenii)). [#36171](https://github.com/ClickHouse/ClickHouse/pull/36171))
#### New Feature
* Query parameters can be set in interactive mode as `SET param_abc = 'def'` and transferred via the native protocol as settings. [#39906](https://github.com/ClickHouse/ClickHouse/pull/39906) ([Nikita Taranov](https://github.com/nickitat)).
* Quota key can be set in the native protocol ([Yakov Olkhovsky](https://github.com/ClickHouse/ClickHouse/pull/39874)).
* Added a setting `exact_rows_before_limit` (0/1). When enabled, ClickHouse will provide exact value for `rows_before_limit_at_least` statistic, but with the cost that the data before limit will have to be read completely. This closes [#6613](https://github.com/ClickHouse/ClickHouse/issues/6613). [#25333](https://github.com/ClickHouse/ClickHouse/pull/25333) ([kevin wan](https://github.com/MaxWk)).
@ -240,12 +379,14 @@
* Add new setting schema_inference_hints that allows to specify structure hints in schema inference for specific columns. Closes [#39569](https://github.com/ClickHouse/ClickHouse/issues/39569). [#40068](https://github.com/ClickHouse/ClickHouse/pull/40068) ([Kruglov Pavel](https://github.com/Avogar)).
#### Experimental Feature
* Support SQL standard DELETE FROM syntax on merge tree tables and lightweight delete implementation for merge tree families. [#37893](https://github.com/ClickHouse/ClickHouse/pull/37893) ([Jianmei Zhang](https://github.com/zhangjmruc)) ([Alexander Gololobov](https://github.com/davenger)). Note: this new feature does not make ClickHouse an HTAP DBMS.
#### Performance Improvement
* Improved memory usage during memory efficient merging of aggregation results. [#39429](https://github.com/ClickHouse/ClickHouse/pull/39429) ([Nikita Taranov](https://github.com/nickitat)).
* Added concurrency control logic to limit total number of concurrent threads created by queries. [#37558](https://github.com/ClickHouse/ClickHouse/pull/37558) ([Sergei Trifonov](https://github.com/serxa)). Add `concurrent_threads_soft_limit parameter` to increase performance in case of high QPS by means of limiting total number of threads for all queries. [#37285](https://github.com/ClickHouse/ClickHouse/pull/37285) ([Roman Vasin](https://github.com/rvasin)).
* Add `SLRU` cache policy for uncompressed cache and marks cache. ([Kseniia Sumarokova](https://github.com/kssenii)). [#34651](https://github.com/ClickHouse/ClickHouse/pull/34651) ([alexX512](https://github.com/alexX512)). Decoupling local cache function and cache algorithm [#38048](https://github.com/ClickHouse/ClickHouse/pull/38048) ([Han Shukai](https://github.com/KinderRiven)).
* Add `SLRU` cache policy for uncompressed cache and marks cache. ([Kseniia Sumarokova](https://github.com/kssenii)). [#34651](https://github.com/ClickHouse/ClickHouse/pull/34651) ([alexX512](https://github.com/alexX512)). Decoupling local cache function and cache algorithm [#38048](https://github.com/ClickHouse/ClickHouse/pull/38048) ([Han Shukai](https://github.com/KinderRiven)).
* Intel® In-Memory Analytics Accelerator (Intel® IAA) is a hardware accelerator available in the upcoming generation of Intel® Xeon® Scalable processors ("Sapphire Rapids"). Its goal is to speed up common operations in analytics like data (de)compression and filtering. ClickHouse gained the new "DeflateQpl" compression codec which utilizes the Intel® IAA offloading technology to provide a high-performance DEFLATE implementation. The codec uses the [Intel® Query Processing Library (QPL)](https://github.com/intel/qpl) which abstracts access to the hardware accelerator, respectively to a software fallback in case the hardware accelerator is not available. DEFLATE provides in general higher compression rates than ClickHouse's LZ4 default codec, and as a result, offers less disk I/O and lower main memory consumption. [#36654](https://github.com/ClickHouse/ClickHouse/pull/36654) ([jasperzhu](https://github.com/jinjunzh)). [#39494](https://github.com/ClickHouse/ClickHouse/pull/39494) ([Robert Schulze](https://github.com/rschu1ze)).
* `DISTINCT` in order with `ORDER BY`: Deduce way to sort based on input stream sort description. Skip sorting if input stream is already sorted. [#38719](https://github.com/ClickHouse/ClickHouse/pull/38719) ([Igor Nikonov](https://github.com/devcrafter)). Improve memory usage (significantly) and query execution time + use `DistinctSortedChunkTransform` for final distinct when `DISTINCT` columns match `ORDER BY` columns, but rename to `DistinctSortedStreamTransform` in `EXPLAIN PIPELINE` → this improves memory usage significantly + remove unnecessary allocations in hot loop in `DistinctSortedChunkTransform`. [#39432](https://github.com/ClickHouse/ClickHouse/pull/39432) ([Igor Nikonov](https://github.com/devcrafter)). Use `DistinctSortedTransform` only when sort description is applicable to DISTINCT columns, otherwise fall back to ordinary DISTINCT implementation + it allows making less checks during `DistinctSortedTransform` execution. [#39528](https://github.com/ClickHouse/ClickHouse/pull/39528) ([Igor Nikonov](https://github.com/devcrafter)). Fix: `DistinctSortedTransform` didn't take advantage of sorting. It never cleared HashSet since clearing_columns were detected incorrectly (always empty). So, it basically worked as ordinary `DISTINCT` (`DistinctTransform`). The fix reduces memory usage significantly. [#39538](https://github.com/ClickHouse/ClickHouse/pull/39538) ([Igor Nikonov](https://github.com/devcrafter)).
* Use local node as first priority to get structure of remote table when executing `cluster` and similar table functions. [#39440](https://github.com/ClickHouse/ClickHouse/pull/39440) ([Mingliang Pan](https://github.com/liangliangpan)).
@ -256,6 +397,7 @@
* Improve bytes to bits mask transform for SSE/AVX/AVX512. [#39586](https://github.com/ClickHouse/ClickHouse/pull/39586) ([Guo Wangyang](https://github.com/guowangy)).
#### Improvement
* Normalize `AggregateFunction` types and state representations because optimizations like [#35788](https://github.com/ClickHouse/ClickHouse/pull/35788) will treat `count(not null columns)` as `count()`, which might confuses distributed interpreters with the following error : `Conversion from AggregateFunction(count) to AggregateFunction(count, Int64) is not supported`. [#39420](https://github.com/ClickHouse/ClickHouse/pull/39420) ([Amos Bird](https://github.com/amosbird)). The functions with identical states can be used in materialized views interchangeably.
* Rework and simplify the `system.backups` table, remove the `internal` column, allow user to set the ID of operation, add columns `num_files`, `uncompressed_size`, `compressed_size`, `start_time`, `end_time`. [#39503](https://github.com/ClickHouse/ClickHouse/pull/39503) ([Vitaly Baranov](https://github.com/vitlibar)).
* Improved structure of DDL query result table for `Replicated` database (separate columns with shard and replica name, more clear status) - `CREATE TABLE ... ON CLUSTER` queries can be normalized on initiator first if `distributed_ddl_entry_format_version` is set to 3 (default value). It means that `ON CLUSTER` queries may not work if initiator does not belong to the cluster that specified in query. Fixes [#37318](https://github.com/ClickHouse/ClickHouse/issues/37318), [#39500](https://github.com/ClickHouse/ClickHouse/issues/39500) - Ignore `ON CLUSTER` clause if database is `Replicated` and cluster name equals to database name. Related to [#35570](https://github.com/ClickHouse/ClickHouse/issues/35570) - Miscellaneous minor fixes for `Replicated` database engine - Check metadata consistency when starting up `Replicated` database, start replica recovery in case of mismatch of local metadata and metadata in Keeper. Resolves [#24880](https://github.com/ClickHouse/ClickHouse/issues/24880). [#37198](https://github.com/ClickHouse/ClickHouse/pull/37198) ([Alexander Tokmakov](https://github.com/tavplubix)).
@ -294,6 +436,7 @@
* Add support for LARGE_BINARY/LARGE_STRING with Arrow (Closes [#32401](https://github.com/ClickHouse/ClickHouse/issues/32401)). [#40293](https://github.com/ClickHouse/ClickHouse/pull/40293) ([Josh Taylor](https://github.com/joshuataylor)).
#### Build/Testing/Packaging Improvement
* [ClickFiddle](https://fiddle.clickhouse.com/): A new tool for testing ClickHouse versions in read/write mode (**Igor Baliuk**).
* ClickHouse binary is made self-extracting [#35775](https://github.com/ClickHouse/ClickHouse/pull/35775) ([Yakov Olkhovskiy, Arthur Filatenkov](https://github.com/yakov-olkhovskiy)).
* Update tzdata to 2022b to support the new timezone changes. See https://github.com/google/cctz/pull/226. Chile's 2022 DST start is delayed from September 4 to September 11. Iran plans to stop observing DST permanently, after it falls back on 2022-09-21. There are corrections of the historical time zone of Asia/Tehran in the year 1977: Iran adopted standard time in 1935, not 1946. In 1977 it observed DST from 03-21 23:00 to 10-20 24:00; its 1978 transitions were on 03-24 and 08-05, not 03-20 and 10-20; and its spring 1979 transition was on 05-27, not 03-21 (https://data.iana.org/time-zones/tzdb/NEWS). ([Alexey Milovidov](https://github.com/alexey-milovidov)).
@ -308,6 +451,7 @@
* Docker: Now entrypoint.sh in docker image creates and executes chown for all folders it found in config for multidisk setup [#17717](https://github.com/ClickHouse/ClickHouse/issues/17717). [#39121](https://github.com/ClickHouse/ClickHouse/pull/39121) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
#### Bug Fix
* Fix possible segfault in `CapnProto` input format. This bug was found and send through ClickHouse bug-bounty [program](https://github.com/ClickHouse/ClickHouse/issues/38986) by *kiojj*. [#40241](https://github.com/ClickHouse/ClickHouse/pull/40241) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix a very rare case of incorrect behavior of array subscript operator. This closes [#28720](https://github.com/ClickHouse/ClickHouse/issues/28720). [#40185](https://github.com/ClickHouse/ClickHouse/pull/40185) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Fix insufficient argument check for encryption functions (found by query fuzzer). This closes [#39987](https://github.com/ClickHouse/ClickHouse/issues/39987). [#40194](https://github.com/ClickHouse/ClickHouse/pull/40194) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
@ -358,16 +502,17 @@
* A fix for reverse DNS resolution. [#40134](https://github.com/ClickHouse/ClickHouse/pull/40134) ([Arthur Passos](https://github.com/arthurpassos)).
* Fix unexpected result `arrayDifference` of `Array(UInt32). [#40211](https://github.com/ClickHouse/ClickHouse/pull/40211) ([Duc Canh Le](https://github.com/canhld94)).
### <a id="227"></a> ClickHouse release 22.7, 2022-07-21
#### Upgrade Notes
* Enable setting `enable_positional_arguments` by default. It allows queries like `SELECT ... ORDER BY 1, 2` where 1, 2 are the references to the select clause. If you need to return the old behavior, disable this setting. [#38204](https://github.com/ClickHouse/ClickHouse/pull/38204) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Disable `format_csv_allow_single_quotes` by default. See [#37096](https://github.com/ClickHouse/ClickHouse/issues/37096). ([Kruglov Pavel](https://github.com/Avogar)).
* `Ordinary` database engine and old storage definition syntax for `*MergeTree` tables are deprecated. By default it's not possible to create new databases with `Ordinary` engine. If `system` database has `Ordinary` engine it will be automatically converted to `Atomic` on server startup. There are settings to keep old behavior (`allow_deprecated_database_ordinary` and `allow_deprecated_syntax_for_merge_tree`), but these settings may be removed in future releases. [#38335](https://github.com/ClickHouse/ClickHouse/pull/38335) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Force rewriting comma join to inner by default (set default value `cross_to_inner_join_rewrite = 2`). To have old behavior set `cross_to_inner_join_rewrite = 1`. [#39326](https://github.com/ClickHouse/ClickHouse/pull/39326) ([Vladimir C](https://github.com/vdimir)). If you will face any incompatibilities, you can turn this setting back.
#### New Feature
* Support expressions with window functions. Closes [#19857](https://github.com/ClickHouse/ClickHouse/issues/19857). [#37848](https://github.com/ClickHouse/ClickHouse/pull/37848) ([Dmitry Novik](https://github.com/novikd)).
* Add new `direct` join algorithm for `EmbeddedRocksDB` tables, see [#33582](https://github.com/ClickHouse/ClickHouse/issues/33582). [#35363](https://github.com/ClickHouse/ClickHouse/pull/35363) ([Vladimir C](https://github.com/vdimir)).
* Added full sorting merge join algorithm. [#35796](https://github.com/ClickHouse/ClickHouse/pull/35796) ([Vladimir C](https://github.com/vdimir)).
@ -395,9 +540,11 @@
* Add `clickhouse-diagnostics` binary to the packages. [#38647](https://github.com/ClickHouse/ClickHouse/pull/38647) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
#### Experimental Feature
* Adds new setting `implicit_transaction` to run standalone queries inside a transaction. It handles both creation and closing (via COMMIT if the query succeeded or ROLLBACK if it didn't) of the transaction automatically. [#38344](https://github.com/ClickHouse/ClickHouse/pull/38344) ([Raúl Marín](https://github.com/Algunenano)).
#### Performance Improvement
* Distinct optimization for sorted columns. Use specialized distinct transformation in case input stream is sorted by column(s) in distinct. Optimization can be applied to pre-distinct, final distinct, or both. Initial implementation by @dimarub2000. [#37803](https://github.com/ClickHouse/ClickHouse/pull/37803) ([Igor Nikonov](https://github.com/devcrafter)).
* Improve performance of `ORDER BY`, `MergeTree` merges, window functions using batch version of `BinaryHeap`. [#38022](https://github.com/ClickHouse/ClickHouse/pull/38022) ([Maksim Kita](https://github.com/kitaisreal)).
* More parallel execution for queries with `FINAL` [#36396](https://github.com/ClickHouse/ClickHouse/pull/36396) ([Nikita Taranov](https://github.com/nickitat)).
@ -407,7 +554,7 @@
* Improve performance of insertion to columns of type `JSON`. [#38320](https://github.com/ClickHouse/ClickHouse/pull/38320) ([Anton Popov](https://github.com/CurtizJ)).
* Optimized insertion and lookups in the HashTable. [#38413](https://github.com/ClickHouse/ClickHouse/pull/38413) ([Nikita Taranov](https://github.com/nickitat)).
* Fix performance degradation from [#32493](https://github.com/ClickHouse/ClickHouse/issues/32493). [#38417](https://github.com/ClickHouse/ClickHouse/pull/38417) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Improve performance of joining with numeric columns using SIMD instructions. [#37235](https://github.com/ClickHouse/ClickHouse/pull/37235) ([zzachimed](https://github.com/zzachimed)). [#38565](https://github.com/ClickHouse/ClickHouse/pull/38565) ([Maksim Kita](https://github.com/kitaisreal)).
* Improve performance of joining with numeric columns using SIMD instructions. [#37235](https://github.com/ClickHouse/ClickHouse/pull/37235) ([zzachimed](https://github.com/zzachimed)). [#38565](https://github.com/ClickHouse/ClickHouse/pull/38565) ([Maksim Kita](https://github.com/kitaisreal)).
* Norm and Distance functions for arrays speed up 1.2-2 times. [#38740](https://github.com/ClickHouse/ClickHouse/pull/38740) ([Alexander Gololobov](https://github.com/davenger)).
* Add AVX-512 VBMI optimized `copyOverlap32Shuffle` for LZ4 decompression. In other words, LZ4 decompression performance is improved. [#37891](https://github.com/ClickHouse/ClickHouse/pull/37891) ([Guo Wangyang](https://github.com/guowangy)).
* `ORDER BY (a, b)` will use all the same benefits as `ORDER BY a, b`. [#38873](https://github.com/ClickHouse/ClickHouse/pull/38873) ([Igor Nikonov](https://github.com/devcrafter)).
@ -419,6 +566,7 @@
* The table `system.asynchronous_metric_log` is further optimized for storage space. This closes [#38134](https://github.com/ClickHouse/ClickHouse/issues/38134). See the [YouTube video](https://www.youtube.com/watch?v=0fSp9SF8N8A). [#38428](https://github.com/ClickHouse/ClickHouse/pull/38428) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### Improvement
* Support SQL standard CREATE INDEX and DROP INDEX syntax. [#35166](https://github.com/ClickHouse/ClickHouse/pull/35166) ([Jianmei Zhang](https://github.com/zhangjmruc)).
* Send profile events for INSERT queries (previously only SELECT was supported). [#37391](https://github.com/ClickHouse/ClickHouse/pull/37391) ([Azat Khuzhin](https://github.com/azat)).
* Implement in order aggregation (`optimize_aggregation_in_order`) for fully materialized projections. [#37469](https://github.com/ClickHouse/ClickHouse/pull/37469) ([Azat Khuzhin](https://github.com/azat)).
@ -464,6 +612,7 @@
* Allow to declare `RabbitMQ` queue without default arguments `x-max-length` and `x-overflow`. [#39259](https://github.com/ClickHouse/ClickHouse/pull/39259) ([rnbondarenko](https://github.com/rnbondarenko)).
#### Build/Testing/Packaging Improvement
* Apply Clang Thread Safety Analysis (TSA) annotations to ClickHouse. [#38068](https://github.com/ClickHouse/ClickHouse/pull/38068) ([Robert Schulze](https://github.com/rschu1ze)).
* Adapt universal installation script for FreeBSD. [#39302](https://github.com/ClickHouse/ClickHouse/pull/39302) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Preparation for building on `s390x` platform. [#39193](https://github.com/ClickHouse/ClickHouse/pull/39193) ([Harry Lee](https://github.com/HarryLeeIBM)).
@ -473,6 +622,7 @@
* Change `all|noarch` packages to architecture-dependent - Fix some documentation for it - Push aarch64|arm64 packages to artifactory and release assets - Fixes [#36443](https://github.com/ClickHouse/ClickHouse/issues/36443). [#38580](https://github.com/ClickHouse/ClickHouse/pull/38580) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
#### Bug Fix (user-visible misbehavior in official stable or prestable release)
* Fix rounding for `Decimal128/Decimal256` with more than 19-digits long scale. [#38027](https://github.com/ClickHouse/ClickHouse/pull/38027) ([Igor Nikonov](https://github.com/devcrafter)).
* Fixed crash caused by data race in storage `Hive` (integration table engine). [#38887](https://github.com/ClickHouse/ClickHouse/pull/38887) ([lgbo](https://github.com/lgbo-ustc)).
* Fix crash when executing GRANT ALL ON *.* with ON CLUSTER. It was broken in https://github.com/ClickHouse/ClickHouse/pull/35767. This closes [#38618](https://github.com/ClickHouse/ClickHouse/issues/38618). [#38674](https://github.com/ClickHouse/ClickHouse/pull/38674) ([Vitaly Baranov](https://github.com/vitlibar)).
@ -529,6 +679,7 @@
### <a id="226"></a> ClickHouse release 22.6, 2022-06-16
#### Backward Incompatible Change
* Remove support for octal number literals in SQL. In previous versions they were parsed as Float64. [#37765](https://github.com/ClickHouse/ClickHouse/pull/37765) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
* Changes how settings using `seconds` as type are parsed to support floating point values (for example: `max_execution_time=0.5`). Infinity or NaN values will throw an exception. [#37187](https://github.com/ClickHouse/ClickHouse/pull/37187) ([Raúl Marín](https://github.com/Algunenano)).
* Changed format of binary serialization of columns of experimental type `Object`. New format is more convenient to implement by third-party clients. [#37482](https://github.com/ClickHouse/ClickHouse/pull/37482) ([Anton Popov](https://github.com/CurtizJ)).
@ -537,6 +688,7 @@
* If you run different ClickHouse versions on a cluster with AArch64 CPU or mix AArch64 and amd64 on a cluster, and use distributed queries with GROUP BY multiple keys of fixed-size type that fit in 256 bits but don't fit in 64 bits, and the size of the result is huge, the data will not be fully aggregated in the result of these queries during upgrade. Workaround: upgrade with downtime instead of a rolling upgrade.
#### New Feature
* Add `GROUPING` function. It allows to disambiguate the records in the queries with `ROLLUP`, `CUBE` or `GROUPING SETS`. Closes [#19426](https://github.com/ClickHouse/ClickHouse/issues/19426). [#37163](https://github.com/ClickHouse/ClickHouse/pull/37163) ([Dmitry Novik](https://github.com/novikd)).
* A new codec [FPC](https://userweb.cs.txstate.edu/~burtscher/papers/dcc07a.pdf) algorithm for floating point data compression. [#37553](https://github.com/ClickHouse/ClickHouse/pull/37553) ([Mikhail Guzov](https://github.com/koloshmet)).
* Add new columnar JSON formats: `JSONColumns`, `JSONCompactColumns`, `JSONColumnsWithMetadata`. Closes [#36338](https://github.com/ClickHouse/ClickHouse/issues/36338) Closes [#34509](https://github.com/ClickHouse/ClickHouse/issues/34509). [#36975](https://github.com/ClickHouse/ClickHouse/pull/36975) ([Kruglov Pavel](https://github.com/Avogar)).
@ -557,11 +709,13 @@
* Added `SYSTEM UNFREEZE` query that deletes the whole backup regardless if the corresponding table is deleted or not. [#36424](https://github.com/ClickHouse/ClickHouse/pull/36424) ([Vadim Volodin](https://github.com/PolyProgrammist)).
#### Experimental Feature
* Enables `POPULATE` for `WINDOW VIEW`. [#36945](https://github.com/ClickHouse/ClickHouse/pull/36945) ([vxider](https://github.com/Vxider)).
* `ALTER TABLE ... MODIFY QUERY` support for `WINDOW VIEW`. [#37188](https://github.com/ClickHouse/ClickHouse/pull/37188) ([vxider](https://github.com/Vxider)).
* This PR changes the behavior of the `ENGINE` syntax in `WINDOW VIEW`, to make it like in `MATERIALIZED VIEW`. [#37214](https://github.com/ClickHouse/ClickHouse/pull/37214) ([vxider](https://github.com/Vxider)).
#### Performance Improvement
* Added numerous optimizations for ARM NEON [#38093](https://github.com/ClickHouse/ClickHouse/pull/38093)([Daniel Kutenin](https://github.com/danlark1)), ([Alexandra Pilipyuk](https://github.com/chalice19)) Note: if you run different ClickHouse versions on a cluster with ARM CPU and use distributed queries with GROUP BY multiple keys of fixed-size type that fit in 256 bits but don't fit in 64 bits, the result of the aggregation query will be wrong during upgrade. Workaround: upgrade with downtime instead of a rolling upgrade.
* Improve performance and memory usage for select of subset of columns for formats Native, Protobuf, CapnProto, JSONEachRow, TSKV, all formats with suffixes WithNames/WithNamesAndTypes. Previously while selecting only subset of columns from files in these formats all columns were read and stored in memory. Now only required columns are read. This PR enables setting `input_format_skip_unknown_fields` by default, because otherwise in case of select of subset of columns exception will be thrown. [#37192](https://github.com/ClickHouse/ClickHouse/pull/37192) ([Kruglov Pavel](https://github.com/Avogar)).
* Now more filters can be pushed down for join. [#37472](https://github.com/ClickHouse/ClickHouse/pull/37472) ([Amos Bird](https://github.com/amosbird)).
@ -592,6 +746,7 @@
* In function: CompressedWriteBuffer::nextImpl(), there is an unnecessary write-copy step that would happen frequently during inserting data. Below shows the differentiation with this patch: - Before: 1. Compress "working_buffer" into "compressed_buffer" 2. write-copy into "out" - After: Directly Compress "working_buffer" into "out". [#37242](https://github.com/ClickHouse/ClickHouse/pull/37242) ([jasperzhu](https://github.com/jinjunzh)).
#### Improvement
* Support types with non-standard defaults in ROLLUP, CUBE, GROUPING SETS. Closes [#37360](https://github.com/ClickHouse/ClickHouse/issues/37360). [#37667](https://github.com/ClickHouse/ClickHouse/pull/37667) ([Dmitry Novik](https://github.com/novikd)).
* Fix stack traces collection on ARM. Closes [#37044](https://github.com/ClickHouse/ClickHouse/issues/37044). Closes [#15638](https://github.com/ClickHouse/ClickHouse/issues/15638). [#37797](https://github.com/ClickHouse/ClickHouse/pull/37797) ([Maksim Kita](https://github.com/kitaisreal)).
* Client will try every IP address returned by DNS resolution until successful connection. [#37273](https://github.com/ClickHouse/ClickHouse/pull/37273) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
@ -633,6 +788,7 @@
* Add implicit grants with grant option too. For example `GRANT CREATE TABLE ON test.* TO A WITH GRANT OPTION` now allows `A` to execute `GRANT CREATE VIEW ON test.* TO B`. [#38017](https://github.com/ClickHouse/ClickHouse/pull/38017) ([Vitaly Baranov](https://github.com/vitlibar)).
#### Build/Testing/Packaging Improvement
* Use `clang-14` and LLVM infrastructure version 14 for builds. This closes [#34681](https://github.com/ClickHouse/ClickHouse/issues/34681). [#34754](https://github.com/ClickHouse/ClickHouse/pull/34754) ([Alexey Milovidov](https://github.com/alexey-milovidov)). Note: `clang-14` has [a bug](https://github.com/google/sanitizers/issues/1540) in ThreadSanitizer that makes our CI work worse.
* Allow to drop privileges at startup. This simplifies Docker images. Closes [#36293](https://github.com/ClickHouse/ClickHouse/issues/36293). [#36341](https://github.com/ClickHouse/ClickHouse/pull/36341) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Add docs spellcheck to CI. [#37790](https://github.com/ClickHouse/ClickHouse/pull/37790) ([Vladimir C](https://github.com/vdimir)).
@ -690,7 +846,6 @@
* Fix possible heap-use-after-free error when reading system.projection_parts and system.projection_parts_columns . This fixes [#37184](https://github.com/ClickHouse/ClickHouse/issues/37184). [#37185](https://github.com/ClickHouse/ClickHouse/pull/37185) ([Amos Bird](https://github.com/amosbird)).
* Fixed `DateTime64` fractional seconds behavior prior to Unix epoch. [#37697](https://github.com/ClickHouse/ClickHouse/pull/37697) ([Andrey Zvonov](https://github.com/zvonand)). [#37039](https://github.com/ClickHouse/ClickHouse/pull/37039) ([李扬](https://github.com/taiyang-li)).
### <a id="225"></a> ClickHouse release 22.5, 2022-05-19
#### Upgrade Notes
@ -743,7 +898,7 @@
* Implement partial GROUP BY key for optimize_aggregation_in_order. [#35111](https://github.com/ClickHouse/ClickHouse/pull/35111) ([Azat Khuzhin](https://github.com/azat)).
#### Improvement
* Show names of erroneous files in case of parsing errors while executing table functions `file`, `s3` and `url`. [#36314](https://github.com/ClickHouse/ClickHouse/pull/36314) ([Anton Popov](https://github.com/CurtizJ)).
* Allowed to increase the number of threads for executing background operations (merges, mutations, moves and fetches) at runtime if they are specified at top level config. [#36425](https://github.com/ClickHouse/ClickHouse/pull/36425) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Now date time conversion functions that generates time before 1970-01-01 00:00:00 with partial hours/minutes timezones will be saturated to zero instead of overflow. This is the continuation of https://github.com/ClickHouse/ClickHouse/pull/29953 which addresses https://github.com/ClickHouse/ClickHouse/pull/29953#discussion_r800550280 . Mark as improvement because it's implementation defined behavior (and very rare case) and we are allowed to break it. [#36656](https://github.com/ClickHouse/ClickHouse/pull/36656) ([Amos Bird](https://github.com/amosbird)).
@ -852,7 +1007,6 @@
* Fix ALTER DROP COLUMN of nested column with compact parts (i.e. `ALTER TABLE x DROP COLUMN n`, when there is column `n.d`). [#35797](https://github.com/ClickHouse/ClickHouse/pull/35797) ([Azat Khuzhin](https://github.com/azat)).
* Fix substring function range error length when `offset` and `length` is negative constant and `s` is not constant. [#33861](https://github.com/ClickHouse/ClickHouse/pull/33861) ([RogerYK](https://github.com/RogerYK)).
### <a id="224"></a> ClickHouse release 22.4, 2022-04-19
#### Backward Incompatible Change
@ -1004,8 +1158,7 @@
* Fix mutations in tables with enabled sparse columns. [#35284](https://github.com/ClickHouse/ClickHouse/pull/35284) ([Anton Popov](https://github.com/CurtizJ)).
* Do not delay final part writing by default (fixes possible `Memory limit exceeded` during `INSERT` by adding `max_insert_delayed_streams_for_parallel_write` with default to 1000 for writes to s3 and disabled as before otherwise). [#34780](https://github.com/ClickHouse/ClickHouse/pull/34780) ([Azat Khuzhin](https://github.com/azat)).
## <a id="223"></a> ClickHouse release v22.3-lts, 2022-03-17
### <a id="223"></a> ClickHouse release v22.3-lts, 2022-03-17
#### Backward Incompatible Change
@ -1132,7 +1285,6 @@
* Fix incorrect result of trivial count query when part movement feature is used [#34089](https://github.com/ClickHouse/ClickHouse/issues/34089). [#34385](https://github.com/ClickHouse/ClickHouse/pull/34385) ([nvartolomei](https://github.com/nvartolomei)).
* Fix inconsistency of `max_query_size` limitation in distributed subqueries. [#34078](https://github.com/ClickHouse/ClickHouse/pull/34078) ([Chao Ma](https://github.com/godliness)).
### <a id="222"></a> ClickHouse release v22.2, 2022-02-17
#### Upgrade Notes
@ -1308,7 +1460,6 @@
* Fix issue [#18206](https://github.com/ClickHouse/ClickHouse/issues/18206). [#33977](https://github.com/ClickHouse/ClickHouse/pull/33977) ([Vitaly Baranov](https://github.com/vitlibar)).
* This PR allows using multiple LDAP storages in the same list of user directories. It worked earlier but was broken because LDAP tests are disabled (they are part of the testflows tests). [#33574](https://github.com/ClickHouse/ClickHouse/pull/33574) ([Vitaly Baranov](https://github.com/vitlibar)).
### <a id="221"></a> ClickHouse release v22.1, 2022-01-18
#### Upgrade Notes
@ -1335,7 +1486,6 @@
* Add function `decodeURLFormComponent` slightly different to `decodeURLComponent`. Close [#10298](https://github.com/ClickHouse/ClickHouse/issues/10298). [#33451](https://github.com/ClickHouse/ClickHouse/pull/33451) ([SuperDJY](https://github.com/cmsxbc)).
* Allow to split `GraphiteMergeTree` rollup rules for plain/tagged metrics (optional rule_type field). [#33494](https://github.com/ClickHouse/ClickHouse/pull/33494) ([Michail Safronov](https://github.com/msaf1980)).
#### Performance Improvement
* Support moving conditions to `PREWHERE` (setting `optimize_move_to_prewhere`) for tables of `Merge` engine if its all underlying tables supports `PREWHERE`. [#33300](https://github.com/ClickHouse/ClickHouse/pull/33300) ([Anton Popov](https://github.com/CurtizJ)).
@ -1351,7 +1501,6 @@
* Optimize selecting of MergeTree parts that can be moved between volumes. [#33225](https://github.com/ClickHouse/ClickHouse/pull/33225) ([OnePiece](https://github.com/zhongyuankai)).
* Fix `sparse_hashed` dict performance with sequential keys (wrong hash function). [#32536](https://github.com/ClickHouse/ClickHouse/pull/32536) ([Azat Khuzhin](https://github.com/azat)).
#### Experimental Feature
* Parallel reading from multiple replicas within a shard during distributed query without using sample key. To enable this, set `allow_experimental_parallel_reading_from_replicas = 1` and `max_parallel_replicas` to any number. This closes [#26748](https://github.com/ClickHouse/ClickHouse/issues/26748). [#29279](https://github.com/ClickHouse/ClickHouse/pull/29279) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
@ -1364,7 +1513,6 @@
* Fix ACL with explicit digit hash in `clickhouse-keeper`: now the behavior consistent with ZooKeeper and generated digest is always accepted. [#33249](https://github.com/ClickHouse/ClickHouse/pull/33249) ([小路](https://github.com/nicelulu)). [#33246](https://github.com/ClickHouse/ClickHouse/pull/33246).
* Fix unexpected projection removal when detaching parts. [#32067](https://github.com/ClickHouse/ClickHouse/pull/32067) ([Amos Bird](https://github.com/amosbird)).
#### Improvement
* Now date time conversion functions that generates time before `1970-01-01 00:00:00` will be saturated to zero instead of overflow. [#29953](https://github.com/ClickHouse/ClickHouse/pull/29953) ([Amos Bird](https://github.com/amosbird)). It also fixes a bug in index analysis if date truncation function would yield result before the Unix epoch.
@ -1411,7 +1559,6 @@
* Updating `modification_time` for data part in `system.parts` after part movement [#32964](https://github.com/ClickHouse/ClickHouse/issues/32964). [#32965](https://github.com/ClickHouse/ClickHouse/pull/32965) ([save-my-heart](https://github.com/save-my-heart)).
* Potential issue, cannot be exploited: integer overflow may happen in array resize. [#33024](https://github.com/ClickHouse/ClickHouse/pull/33024) ([varadarajkumar](https://github.com/varadarajkumar)).
#### Build/Testing/Packaging Improvement
* Add packages, functional tests and Docker builds for AArch64 (ARM) version of ClickHouse. [#32911](https://github.com/ClickHouse/ClickHouse/pull/32911) ([Mikhail f. Shiryaev](https://github.com/Felixoid)). [#32415](https://github.com/ClickHouse/ClickHouse/pull/32415)
@ -1426,7 +1573,6 @@
* Inject git information into clickhouse binary file. So we can get source code revision easily from clickhouse binary file. [#33124](https://github.com/ClickHouse/ClickHouse/pull/33124) ([taiyang-li](https://github.com/taiyang-li)).
* Remove obsolete code from ConfigProcessor. Yandex specific code is not used anymore. The code contained one minor defect. This defect was reported by [Mallik Hassan](https://github.com/SadiHassan) in [#33032](https://github.com/ClickHouse/ClickHouse/issues/33032). This closes [#33032](https://github.com/ClickHouse/ClickHouse/issues/33032). [#33026](https://github.com/ClickHouse/ClickHouse/pull/33026) ([alexey-milovidov](https://github.com/alexey-milovidov)).
#### Bug Fix (user-visible misbehavior in official stable or prestable release)
* Several fixes for format parsing. This is relevant if `clickhouse-server` is open for write access to adversary. Specifically crafted input data for `Native` format may lead to reading uninitialized memory or crash. This is relevant if `clickhouse-server` is open for write access to adversary. [#33050](https://github.com/ClickHouse/ClickHouse/pull/33050) ([Heena Bansal](https://github.com/HeenaBansal2009)). Fixed Apache Avro Union type index out of boundary issue in Apache Avro binary format. [#33022](https://github.com/ClickHouse/ClickHouse/pull/33022) ([Harry Lee](https://github.com/HarryLeeIBM)). Fix null pointer dereference in `LowCardinality` data when deserializing `LowCardinality` data in the Native format. [#33021](https://github.com/ClickHouse/ClickHouse/pull/33021) ([Harry Lee](https://github.com/HarryLeeIBM)).
@ -1485,5 +1631,4 @@
* Fix possible crash (or incorrect result) in case of `LowCardinality` arguments of window function. Fixes [#31114](https://github.com/ClickHouse/ClickHouse/issues/31114). [#31888](https://github.com/ClickHouse/ClickHouse/pull/31888) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Fix hang up with command `DROP TABLE system.query_log sync`. [#33293](https://github.com/ClickHouse/ClickHouse/pull/33293) ([zhanghuajie](https://github.com/zhanghuajieHIT)).
## [Changelog for 2021](https://clickhouse.com/docs/en/whats-new/changelog/2021)

16
CMakeLists.txt
View File

@ -202,7 +202,7 @@ option(ADD_GDB_INDEX_FOR_GOLD "Add .gdb-index to resulting binaries for gold lin
if (NOT CMAKE_BUILD_TYPE_UC STREQUAL "RELEASE")
# Can be lld or ld-lld or lld-13 or /path/to/lld.
if (LINKER_NAME MATCHES "lld")
if (LINKER_NAME MATCHES "lld" AND OS_LINUX)
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gdb-index")
set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--gdb-index")
message (STATUS "Adding .gdb-index via --gdb-index linker option.")
@ -248,7 +248,7 @@ endif ()
# Create BuildID when using lld. For other linkers it is created by default.
# (NOTE: LINKER_NAME can be either path or name, and in different variants)
if (LINKER_NAME MATCHES "lld")
if (LINKER_NAME MATCHES "lld" AND OS_LINUX)
# SHA1 is not cryptographically secure but it is the best what lld is offering.
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--build-id=sha1")
endif ()
@ -495,6 +495,14 @@ endif ()
enable_testing() # Enable for tests without binary
option(ENABLE_EXTERNAL_OPENSSL "This option is insecure and not recommended for any occasions. If it is enabled, it allows building with alternative OpenSSL library. By default, ClickHouse is using BoringSSL, which is better. Do not use this option." OFF)
if (ENABLE_EXTERNAL_OPENSSL)
message (STATUS "Build and uses OpenSSL library instead of BoringSSL. This is strongly discouraged. Your build of ClickHouse will be unsupported.")
set(ENABLE_SSL 1)
target_compile_options(global-group INTERFACE "-Wno-deprecated-declarations")
endif ()
# when installing to /usr - place configs to /etc but for /usr/local place to /usr/local/etc
if (CMAKE_INSTALL_PREFIX STREQUAL "/usr")
set (CLICKHOUSE_ETC_DIR "/etc")
@ -567,8 +575,8 @@ function (add_native_target)
set_property (GLOBAL APPEND PROPERTY NATIVE_BUILD_TARGETS ${ARGV})
endfunction (add_native_target)
set(ConfigIncludePath ${CMAKE_CURRENT_BINARY_DIR}/includes/configs CACHE INTERNAL "Path to generated configuration files.")
include_directories(${ConfigIncludePath})
set(CONFIG_INCLUDE_PATH ${CMAKE_CURRENT_BINARY_DIR}/includes/configs CACHE INTERNAL "Path to generated configuration files.")
include_directories(${CONFIG_INCLUDE_PATH})
# Add as many warnings as possible for our own code.
include (cmake/warnings.cmake)

8
README.md
View File

@ -5,15 +5,17 @@ ClickHouse® is an open-source column-oriented database management system that a
## Useful Links
* [Official website](https://clickhouse.com/) has a quick high-level overview of ClickHouse on the main page.
* [ClickHouse Cloud](https://clickhouse.cloud) ClickHouse as a service, built by the creators and maintainers.
* [Tutorial](https://clickhouse.com/docs/en/getting_started/tutorial/) shows how to set up and query a small ClickHouse cluster.
* [Documentation](https://clickhouse.com/docs/en/) provides more in-depth information.
* [YouTube channel](https://www.youtube.com/c/ClickHouseDB) has a lot of content about ClickHouse in video format.
* [Slack](https://join.slack.com/t/clickhousedb/shared_invite/zt-rxm3rdrk-lIUmhLC3V8WTaL0TGxsOmg) and [Telegram](https://telegram.me/clickhouse_en) allow chatting with ClickHouse users in real-time.
* [Blog](https://clickhouse.com/blog/en/) contains various ClickHouse-related articles, as well as announcements and reports about events.
* [Blog](https://clickhouse.com/blog/) contains various ClickHouse-related articles, as well as announcements and reports about events.
* [Code Browser (Woboq)](https://clickhouse.com/codebrowser/ClickHouse/index.html) with syntax highlight and navigation.
* [Code Browser (github.dev)](https://github.dev/ClickHouse/ClickHouse) with syntax highlight, powered by github.dev.
* [Contacts](https://clickhouse.com/company/contact) can help to get your questions answered if there are any.
## Upcoming events
* [**v22.9 Release Webinar**](https://clickhouse.com/company/events/v22-9-release-webinar) Original creator, co-founder, and CTO of ClickHouse Alexey Milovidov will walk us through the highlights of the release, provide live demos, and share vision into what is coming in the roadmap.
* [**ClickHouse for Analytics @ Barracuda Networks**](https://www.meetup.com/clickhouse-silicon-valley-meetup-group/events/288140358/) Join us for this in person meetup hosted by our friends at Barracuda in Bay Area.
* [**v22.11 Release Webinar**](https://clickhouse.com/company/events/v22-11-release-webinar) Original creator, co-founder, and CTO of ClickHouse Alexey Milovidov will walk us through the highlights of the release, provide live demos, and share vision into what is coming in the roadmap.
* [**ClickHouse Meetup at the Deutsche Bank office in Berlin**](https://www.meetup.com/clickhouse-berlin-user-group/events/289311596/) Hear from Deutsche Bank on why they chose ClickHouse for big sensitive data in a regulated environment. The ClickHouse team will then present how ClickHouse is used for real time financial data analytics, including tick data, trade analytics and risk management.
* [**AWS re:Invent**](https://clickhouse.com/company/events/aws-reinvent) Core members of the ClickHouse team -- including 2 of our founders -- will be at re:Invent from November 29 to December 3. We are available on the show floor, but are also determining interest in holding an event during the time there.

6
SECURITY.md
View File

@ -10,9 +10,11 @@ The following versions of ClickHouse server are currently being supported with s
| Version | Supported |
|:-|:-|
| 22.10 | ✔️ |
| 22.9 | ✔️ |
| 22.8 | ✔️ |
| 22.7 | ✔️ |
| 22.6 | ✔️ |
| 22.7 | ❌ |
| 22.6 | ❌ |
| 22.5 | ❌ |
| 22.4 | ❌ |
| 22.3 | ✔️ |

18
base/base/ReplxxLineReader.cpp
View File

@ -23,7 +23,7 @@ namespace
{
/// Trim ending whitespace inplace
void trim(String & s)
void rightTrim(String & s)
{
s.erase(std::find_if(s.rbegin(), s.rend(), [](unsigned char ch) { return !std::isspace(ch); }).base(), s.end());
}
@ -151,7 +151,7 @@ public:
{
size_t dot_pos = path.rfind('.');
if (dot_pos != std::string::npos)
fd = ::mkstemps(path.data(), path.size() - dot_pos);
fd = ::mkstemps(path.data(), static_cast<int>(path.size() - dot_pos));
else
fd = ::mkstemp(path.data());
@ -408,7 +408,7 @@ ReplxxLineReader::ReplxxLineReader(
// In a simplest case use simple comment.
commented_line = fmt::format("-- {}", state.text());
}
rx.set_state(replxx::Replxx::State(commented_line.c_str(), commented_line.size()));
rx.set_state(replxx::Replxx::State(commented_line.c_str(), static_cast<int>(commented_line.size())));
return rx.invoke(Replxx::ACTION::COMMIT_LINE, code);
};
@ -441,7 +441,7 @@ LineReader::InputStatus ReplxxLineReader::readOneLine(const String & prompt)
return (errno != EAGAIN) ? ABORT : RESET_LINE;
input = cinput;
trim(input);
rightTrim(input);
return INPUT_LINE;
}
@ -480,7 +480,7 @@ void ReplxxLineReader::openEditor()
if (executeCommand(argv) == 0)
{
const std::string & new_query = readFile(editor_file.getPath());
rx.set_state(replxx::Replxx::State(new_query.c_str(), new_query.size()));
rx.set_state(replxx::Replxx::State(new_query.c_str(), static_cast<int>(new_query.size())));
}
}
catch (const std::runtime_error & e)
@ -512,6 +512,9 @@ void ReplxxLineReader::openInteractiveHistorySearch()
/// NOTE: You can use one of the following to configure the behaviour additionally:
/// - SKIM_DEFAULT_OPTIONS
/// - FZF_DEFAULT_OPTS
///
/// And also note, that fzf and skim is 95% compatible (at least option
/// that is used here)
std::string fuzzy_finder_command = fmt::format(
"{} --read0 --tac --no-sort --tiebreak=index --bind=ctrl-r:toggle-sort --height=30% < {} > {}",
fuzzy_finder, history_file.getPath(), output_file.getPath());
@ -521,8 +524,9 @@ void ReplxxLineReader::openInteractiveHistorySearch()
{
if (executeCommand(argv) == 0)
{
const std::string & new_query = readFile(output_file.getPath());
rx.set_state(replxx::Replxx::State(new_query.c_str(), new_query.size()));
std::string new_query = readFile(output_file.getPath());
rightTrim(new_query);
rx.set_state(replxx::Replxx::State(new_query.c_str(), static_cast<int>(new_query.size())));
}
}
catch (const std::runtime_error & e)

12
base/base/StringRef.h
View File

@ -265,7 +265,7 @@ inline size_t hashLessThan16(const char * data, size_t size)
struct CRC32Hash
{
size_t operator() (StringRef x) const
unsigned operator() (StringRef x) const
{
const char * pos = x.data;
size_t size = x.size;
@ -275,22 +275,22 @@ struct CRC32Hash
if (size < 8)
{
return hashLessThan8(x.data, x.size);
return static_cast<unsigned>(hashLessThan8(x.data, x.size));
}
const char * end = pos + size;
size_t res = -1ULL;
unsigned res = -1U;
do
{
UInt64 word = unalignedLoad<UInt64>(pos);
res = CRC_INT(res, word);
res = static_cast<unsigned>(CRC_INT(res, word));
pos += 8;
} while (pos + 8 < end);
UInt64 word = unalignedLoad<UInt64>(end - 8); /// I'm not sure if this is normal.
res = CRC_INT(res, word);
res = static_cast<unsigned>(CRC_INT(res, word));
return res;
}
@ -302,7 +302,7 @@ struct StringRefHash : CRC32Hash {};
struct CRC32Hash
{
size_t operator() (StringRef /* x */) const
unsigned operator() (StringRef /* x */) const
{
throw std::logic_error{"Not implemented CRC32Hash without SSE"};
}

14
base/base/defines.h
View File

@ -123,11 +123,15 @@
/// - tries to print failed assertion into server log
/// It can be used for all assertions except heavy ones.
/// Heavy assertions (that run loops or call complex functions) are allowed in debug builds only.
/// Also it makes sense to call abort() instead of __builtin_unreachable() in debug builds,
/// because SIGABRT is easier to debug than SIGTRAP (the second one makes gdb crazy)
#if !defined(chassert)
#if defined(ABORT_ON_LOGICAL_ERROR)
#define chassert(x) static_cast<bool>(x) ? void(0) : abortOnFailedAssertion(#x)
#define UNREACHABLE() abort()
#else
#define chassert(x) ((void)0)
#define UNREACHABLE() __builtin_unreachable()
#endif
#endif
@ -142,7 +146,9 @@
# define TSA_NO_THREAD_SAFETY_ANALYSIS __attribute__((no_thread_safety_analysis)) /// disable TSA for a function
/// Macros for suppressing TSA warnings for specific reads/writes (instead of suppressing it for the whole function)
/// Consider adding a comment before using these macros.
/// They use a lambda function to apply function attribute to a single statement. This enable us to suppress warnings locally instead of
/// suppressing them in the whole function
/// Consider adding a comment when using these macros.
# define TSA_SUPPRESS_WARNING_FOR_READ(x) ([&]() TSA_NO_THREAD_SAFETY_ANALYSIS -> const auto & { return (x); }())
# define TSA_SUPPRESS_WARNING_FOR_WRITE(x) ([&]() TSA_NO_THREAD_SAFETY_ANALYSIS -> auto & { return (x); }())
@ -159,9 +165,9 @@
# define TSA_REQUIRES_SHARED(...)
# define TSA_NO_THREAD_SAFETY_ANALYSIS
# define TSA_SUPPRESS_WARNING_FOR_READ(x)
# define TSA_SUPPRESS_WARNING_FOR_WRITE(x)
# define TSA_READ_ONE_THREAD(x)
# define TSA_SUPPRESS_WARNING_FOR_READ(x) (x)
# define TSA_SUPPRESS_WARNING_FOR_WRITE(x) (x)
# define TSA_READ_ONE_THREAD(x) TSA_SUPPRESS_WARNING_FOR_READ(x)
#endif
/// A template function for suppressing warnings about unused variables or function results.

2
base/base/itoa.h
View File

@ -122,7 +122,7 @@ QuotientAndRemainder<N> static inline split(UnsignedOfSize<N> value)
constexpr DivisionBy10PowN<N> division;
UnsignedOfSize<N> quotient = (division.multiplier * (UnsignedOfSize<2 * N>(value) + division.add)) >> division.shift;
UnsignedOfSize<N / 2> remainder = value - quotient * pow10<UnsignedOfSize<N / 2>>(N);
UnsignedOfSize<N / 2> remainder = static_cast<UnsignedOfSize<N / 2>>(value - quotient * pow10<UnsignedOfSize<N / 2>>(N));
return {quotient, remainder};
}

5
base/base/safeExit.cpp
View File

@ -1,9 +1,10 @@
#if defined(OS_LINUX)
# include <sys/syscall.h>
#endif
#include <cstdlib>
#include <unistd.h>
#include <base/safeExit.h>
#include <base/defines.h>
#include <base/defines.h> /// for THREAD_SANITIZER
[[noreturn]] void safeExit(int code)
{
@ -11,7 +12,7 @@
/// Thread sanitizer tries to do something on exit that we don't need if we want to exit immediately,
/// while connection handling threads are still run.
(void)syscall(SYS_exit_group, code);
__builtin_unreachable();
UNREACHABLE();
#else
_exit(code);
#endif

2
base/base/wide_integer_impl.h
View File

@ -227,6 +227,8 @@ struct integer<Bits, Signed>::_impl
template <typename T>
__attribute__((no_sanitize("undefined"))) constexpr static auto to_Integral(T f) noexcept
{
/// NOTE: this can be called with DB::Decimal, and in this case, result
/// will be wrong
if constexpr (std::is_signed_v<T>)
return static_cast<int64_t>(f);
else

17
base/glibc-compatibility/musl/getauxval.c
View File

@ -8,6 +8,14 @@
#include <link.h> // ElfW
#include <errno.h>
#include "syscall.h"
#if defined(__has_feature)
#if __has_feature(memory_sanitizer)
#include <sanitizer/msan_interface.h>
#endif
#endif
#define ARRAY_SIZE(a) sizeof((a))/sizeof((a[0]))
/// Suppress TSan since it is possible for this code to be called from multiple threads,
@ -39,7 +47,9 @@ ssize_t __retry_read(int fd, void * buf, size_t count)
{
for (;;)
{
ssize_t ret = read(fd, buf, count);
// We cannot use the read syscall as it will be intercept by sanitizers, which aren't
// initialized yet. Emit syscall directly.
ssize_t ret = __syscall_ret(__syscall(SYS_read, fd, buf, count));
if (ret == -1)
{
if (errno == EINTR)
@ -90,6 +100,11 @@ static unsigned long NO_SANITIZE_THREAD __auxv_init_procfs(unsigned long type)
_Static_assert(sizeof(aux) < 4096, "Unexpected sizeof(aux)");
while (__retry_read(fd, &aux, sizeof(aux)) == sizeof(aux))
{
#if defined(__has_feature)
#if __has_feature(memory_sanitizer)
__msan_unpoison(&aux, sizeof(aux));
#endif
#endif
if (aux.a_type == AT_NULL)
{
break;

10
cmake/autogenerated_versions.txt
View File

@ -2,11 +2,11 @@
# NOTE: has nothing common with DBMS_TCP_PROTOCOL_VERSION,
# only DBMS_TCP_PROTOCOL_VERSION should be incremented on protocol changes.
SET(VERSION_REVISION 54467)
SET(VERSION_REVISION 54468)
SET(VERSION_MAJOR 22)
SET(VERSION_MINOR 10)
SET(VERSION_MINOR 11)
SET(VERSION_PATCH 1)
SET(VERSION_GITHASH 3030d4c7ff09ec44ab07d0a8069ea923227288a1)
SET(VERSION_DESCRIBE v22.10.1.1-testing)
SET(VERSION_STRING 22.10.1.1)
SET(VERSION_GITHASH 98ab5a3c189232ea2a3dddb9d2be7196ae8b3434)
SET(VERSION_DESCRIBE v22.11.1.1-testing)
SET(VERSION_STRING 22.11.1.1)
# end of autochange

24
cmake/clang_tidy.cmake
View File

@ -3,10 +3,20 @@ option (ENABLE_CLANG_TIDY "Use clang-tidy static analyzer" OFF)
if (ENABLE_CLANG_TIDY)
find_program (CLANG_TIDY_PATH NAMES "clang-tidy" "clang-tidy-15" "clang-tidy-14" "clang-tidy-13" "clang-tidy-12")
find_program (CLANG_TIDY_CACHE_PATH NAMES "clang-tidy-cache")
if (CLANG_TIDY_CACHE_PATH)
find_program (_CLANG_TIDY_PATH NAMES "clang-tidy" "clang-tidy-15" "clang-tidy-14" "clang-tidy-13" "clang-tidy-12")
# Why do we use ';' here?
# It's a cmake black magic: https://cmake.org/cmake/help/latest/prop_tgt/LANG_CLANG_TIDY.html#prop_tgt:%3CLANG%3E_CLANG_TIDY
# The CLANG_TIDY_PATH is passed to CMAKE_CXX_CLANG_TIDY, which follows CXX_CLANG_TIDY syntax.
set (CLANG_TIDY_PATH "${CLANG_TIDY_CACHE_PATH};${_CLANG_TIDY_PATH}" CACHE STRING "A combined command to run clang-tidy with caching wrapper")
else ()
find_program (CLANG_TIDY_PATH NAMES "clang-tidy" "clang-tidy-15" "clang-tidy-14" "clang-tidy-13" "clang-tidy-12")
endif ()
if (CLANG_TIDY_PATH)
message(STATUS
message (STATUS
"Using clang-tidy: ${CLANG_TIDY_PATH}.
The checks will be run during build process.
See the .clang-tidy file at the root directory to configure the checks.")
@ -15,11 +25,15 @@ if (ENABLE_CLANG_TIDY)
# clang-tidy requires assertions to guide the analysis
# Note that NDEBUG is set implicitly by CMake for non-debug builds
set(COMPILER_FLAGS "${COMPILER_FLAGS} -UNDEBUG")
set (COMPILER_FLAGS "${COMPILER_FLAGS} -UNDEBUG")
# The variable CMAKE_CXX_CLANG_TIDY will be set inside src and base directories with non third-party code.
# The variable CMAKE_CXX_CLANG_TIDY will be set inside the following directories with non third-party code.
# - base
# - programs
# - src
# - utils
# set (CMAKE_CXX_CLANG_TIDY "${CLANG_TIDY_PATH}")
else ()
message(${RECONFIGURE_MESSAGE_LEVEL} "clang-tidy is not found")
message (${RECONFIGURE_MESSAGE_LEVEL} "clang-tidy is not found")
endif ()
endif ()

24
cmake/cpu_features.cmake
View File

@ -61,8 +61,14 @@ elseif (ARCH_AARCH64)
endif ()
elseif (ARCH_PPC64LE)
# By Default, build for power8 and up, allow building for power9 and up
# Note that gcc and clang have support for x86 SSE2 intrinsics when building for PowerPC
set (COMPILER_FLAGS "${COMPILER_FLAGS} -maltivec -mcpu=power8 -D__SSE2__=1 -DNO_WARN_X86_INTRINSICS")
option (POWER9 "Build for Power 9 CPU and above" 0)
if(POWER9)
set (COMPILER_FLAGS "${COMPILER_FLAGS} -maltivec -mcpu=power9 -D__SSE2__=1 -DNO_WARN_X86_INTRINSICS")
else ()
set (COMPILER_FLAGS "${COMPILER_FLAGS} -maltivec -mcpu=power8 -D__SSE2__=1 -DNO_WARN_X86_INTRINSICS")
endif ()
elseif (ARCH_AMD64)
option (ENABLE_SSSE3 "Use SSSE3 instructions on x86_64" 1)
@ -75,6 +81,7 @@ elseif (ARCH_AMD64)
option (ENABLE_AVX512 "Use AVX512 instructions on x86_64" 0)
option (ENABLE_AVX512_VBMI "Use AVX512_VBMI instruction on x86_64 (depends on ENABLE_AVX512)" 0)
option (ENABLE_BMI "Use BMI instructions on x86_64" 0)
option (ENABLE_BMI2 "Use BMI2 instructions on x86_64 (depends on ENABLE_AVX2)" 0)
option (ENABLE_AVX2_FOR_SPEC_OP "Use avx2 instructions for specific operations on x86_64" 0)
option (ENABLE_AVX512_FOR_SPEC_OP "Use avx512 instructions for specific operations on x86_64" 0)
@ -90,6 +97,7 @@ elseif (ARCH_AMD64)
SET(ENABLE_AVX512 0)
SET(ENABLE_AVX512_VBMI 0)
SET(ENABLE_BMI 0)
SET(ENABLE_BMI2 0)
SET(ENABLE_AVX2_FOR_SPEC_OP 0)
SET(ENABLE_AVX512_FOR_SPEC_OP 0)
endif()
@ -237,6 +245,20 @@ elseif (ARCH_AMD64)
set (COMPILER_FLAGS "${COMPILER_FLAGS} ${TEST_FLAG}")
endif ()
set (TEST_FLAG "-mbmi2")
set (CMAKE_REQUIRED_FLAGS "${TEST_FLAG} -O0")
check_cxx_source_compiles("
#include <immintrin.h>
int main() {
auto a = _pdep_u64(0, 0);
(void)a;
return 0;
}
" HAVE_BMI2)
if (HAVE_BMI2 AND HAVE_AVX2 AND ENABLE_AVX2 AND ENABLE_BMI2)
set (COMPILER_FLAGS "${COMPILER_FLAGS} ${TEST_FLAG}")
endif ()
# Limit avx2/avx512 flag for specific source build
set (X86_INTRINSICS_FLAGS "")
if (ENABLE_AVX2_FOR_SPEC_OP)

8
cmake/ld.lld.in
View File

@ -3,15 +3,15 @@
# This is a workaround for bug in llvm/clang,
# that does not produce .debug_aranges with LTO
#
# NOTE: this is a temporary solution, that should be removed once [1] will be
# resolved.
# NOTE: this is a temporary solution, that should be removed after upgrading to
# clang-16/llvm-16.
#
# [1]: https://discourse.llvm.org/t/clang-does-not-produce-full-debug-aranges-section-with-thinlto/64898/8
# Refs: https://reviews.llvm.org/D133092
# NOTE: only -flto=thin is supported.
# NOTE: it is not possible to check was there -gdwarf-aranges initially or not.
if [[ "$*" =~ -plugin-opt=thinlto ]]; then
exec "@LLD_PATH@" -mllvm -generate-arange-section "$@"
exec "@LLD_PATH@" -plugin-opt=-generate-arange-section "$@"
else
exec "@LLD_PATH@" "$@"
fi

6
cmake/sanitize.cmake
View File

@ -16,7 +16,9 @@ endmacro()
if (SANITIZE)
if (SANITIZE STREQUAL "address")
set (ASAN_FLAGS "-fsanitize=address -fsanitize-address-use-after-scope")
# LLVM-15 has a bug in Address Sanitizer, preventing the usage of 'sanitize-address-use-after-scope',
# see https://github.com/llvm/llvm-project/issues/58633
set (ASAN_FLAGS "-fsanitize=address -fno-sanitize-address-use-after-scope")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${SAN_FLAGS} ${ASAN_FLAGS}")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${SAN_FLAGS} ${ASAN_FLAGS}")
@ -85,7 +87,7 @@ if (SANITIZE)
# and they have a bunch of flags not halt the program if UIO happend and even to silence that warnings.
# But for unknown reason that flags don't work with ClickHouse or we don't understand how to properly use them,
# that's why we often receive reports about UIO. The simplest way to avoid this is just set this flag here.
set(UBSAN_FLAGS "${SAN_FLAGS} -fno-sanitize=unsigned-integer-overflow")
set(UBSAN_FLAGS "${UBSAN_FLAGS} -fno-sanitize=unsigned-integer-overflow")
endif()
if (COMPILER_CLANG)
set (UBSAN_FLAGS "${UBSAN_FLAGS} -fsanitize-blacklist=${CMAKE_SOURCE_DIR}/tests/ubsan_suppressions.txt")

22
cmake/tools.cmake
View File

@ -58,13 +58,19 @@ if (NOT LINKER_NAME)
find_program (LLD_PATH NAMES "ld.lld")
find_program (GOLD_PATH NAMES "ld.gold")
elseif (COMPILER_CLANG)
find_program (LLD_PATH NAMES "ld.lld-${COMPILER_VERSION_MAJOR}" "lld-${COMPILER_VERSION_MAJOR}" "ld.lld" "lld")
# llvm lld is a generic driver.
# Invoke ld.lld (Unix), ld64.lld (macOS), lld-link (Windows), wasm-ld (WebAssembly) instead
if (OS_LINUX)
find_program (LLD_PATH NAMES "ld.lld-${COMPILER_VERSION_MAJOR}" "ld.lld")
elseif (OS_DARWIN)
find_program (LLD_PATH NAMES "ld64.lld-${COMPILER_VERSION_MAJOR}" "ld64.lld")
endif ()
find_program (GOLD_PATH NAMES "ld.gold" "gold")
endif ()
endif()
if (OS_LINUX AND NOT LINKER_NAME)
# prefer lld linker over gold or ld on linux
if ((OS_LINUX OR OS_DARWIN) AND NOT LINKER_NAME)
# prefer lld linker over gold or ld on linux and macos
if (LLD_PATH)
if (COMPILER_GCC)
# GCC driver requires one of supported linker names like "lld".
@ -117,7 +123,7 @@ endif()
# Archiver
if (COMPILER_GCC)
find_program (LLVM_AR_PATH NAMES "llvm-ar" "llvm-ar-14" "llvm-ar-13" "llvm-ar-12")
find_program (LLVM_AR_PATH NAMES "llvm-ar" "llvm-ar-15" "llvm-ar-14" "llvm-ar-13" "llvm-ar-12")
else ()
find_program (LLVM_AR_PATH NAMES "llvm-ar-${COMPILER_VERSION_MAJOR}" "llvm-ar")
endif ()
@ -131,7 +137,7 @@ message(STATUS "Using archiver: ${CMAKE_AR}")
# Ranlib
if (COMPILER_GCC)
find_program (LLVM_RANLIB_PATH NAMES "llvm-ranlib" "llvm-ranlib-14" "llvm-ranlib-13" "llvm-ranlib-12")
find_program (LLVM_RANLIB_PATH NAMES "llvm-ranlib" "llvm-ranlib-15" "llvm-ranlib-14" "llvm-ranlib-13" "llvm-ranlib-12")
else ()
find_program (LLVM_RANLIB_PATH NAMES "llvm-ranlib-${COMPILER_VERSION_MAJOR}" "llvm-ranlib")
endif ()
@ -145,7 +151,7 @@ message(STATUS "Using ranlib: ${CMAKE_RANLIB}")
# Install Name Tool
if (COMPILER_GCC)
find_program (LLVM_INSTALL_NAME_TOOL_PATH NAMES "llvm-install-name-tool" "llvm-install-name-tool-14" "llvm-install-name-tool-13" "llvm-install-name-tool-12")
find_program (LLVM_INSTALL_NAME_TOOL_PATH NAMES "llvm-install-name-tool" "llvm-install-name-tool-15" "llvm-install-name-tool-14" "llvm-install-name-tool-13" "llvm-install-name-tool-12")
else ()
find_program (LLVM_INSTALL_NAME_TOOL_PATH NAMES "llvm-install-name-tool-${COMPILER_VERSION_MAJOR}" "llvm-install-name-tool")
endif ()
@ -159,7 +165,7 @@ message(STATUS "Using install-name-tool: ${CMAKE_INSTALL_NAME_TOOL}")
# Objcopy
if (COMPILER_GCC)
find_program (OBJCOPY_PATH NAMES "llvm-objcopy" "llvm-objcopy-14" "llvm-objcopy-13" "llvm-objcopy-12" "objcopy")
find_program (OBJCOPY_PATH NAMES "llvm-objcopy" "llvm-objcopy-15" "llvm-objcopy-14" "llvm-objcopy-13" "llvm-objcopy-12" "objcopy")
else ()
find_program (OBJCOPY_PATH NAMES "llvm-objcopy-${COMPILER_VERSION_MAJOR}" "llvm-objcopy" "objcopy")
endif ()
@ -173,7 +179,7 @@ endif ()
# Strip
if (COMPILER_GCC)
find_program (STRIP_PATH NAMES "llvm-strip" "llvm-strip-14" "llvm-strip-13" "llvm-strip-12" "strip")
find_program (STRIP_PATH NAMES "llvm-strip" "llvm-strip-15" "llvm-strip-14" "llvm-strip-13" "llvm-strip-12" "strip")
else ()
find_program (STRIP_PATH NAMES "llvm-strip-${COMPILER_VERSION_MAJOR}" "llvm-strip" "strip")
endif ()

1
cmake/warnings.cmake
View File

@ -27,7 +27,6 @@ if (COMPILER_CLANG)
no_warning(sign-conversion)
no_warning(implicit-int-conversion)
no_warning(implicit-int-float-conversion)
no_warning(shorten-64-to-32)
no_warning(ctad-maybe-unsupported) # clang 9+, linux-only
no_warning(disabled-macro-expansion)
no_warning(documentation-unknown-command)

2
contrib/AMQP-CPP vendored

@ -1 +1 @@
Subproject commit 1a6c51f4ac51ac56610fa95081bd2f349911375a
Subproject commit 818c2d8ad96a08a5d20fece7d1e1e8855a2b0860

8
contrib/CMakeLists.txt vendored
View File

@ -74,7 +74,11 @@ add_contrib (re2-cmake re2)
add_contrib (xz-cmake xz)
add_contrib (brotli-cmake brotli)
add_contrib (double-conversion-cmake double-conversion)
add_contrib (boringssl-cmake boringssl)
if (NOT ENABLE_EXTERNAL_OPENSSL)
add_contrib (boringssl-cmake boringssl)
else ()
add_contrib (openssl-cmake openssl)
endif ()
add_contrib (poco-cmake poco)
add_contrib (croaring-cmake croaring)
add_contrib (zstd-cmake zstd)
@ -110,6 +114,7 @@ if (ENABLE_TESTS)
endif()
add_contrib (llvm-project-cmake llvm-project)
add_contrib (libfuzzer-cmake llvm-project)
add_contrib (libxml2-cmake libxml2)
add_contrib (aws-s3-cmake
aws
@ -160,6 +165,7 @@ add_contrib (sqlite-cmake sqlite-amalgamation)
add_contrib (s2geometry-cmake s2geometry)
add_contrib (c-ares-cmake c-ares)
add_contrib (qpl-cmake qpl)
add_contrib (morton-nd-cmake morton-nd)
add_contrib(annoy-cmake annoy)

2
contrib/NuRaft vendored

@ -1 +1 @@
Subproject commit 1be805e7cb2494aa8170015493474379b0362dfc
Subproject commit e4e746a24eb56861a86f3672771e3308d8c40722

5
contrib/amqpcpp-cmake/CMakeLists.txt
View File

@ -4,6 +4,11 @@ if (NOT ENABLE_AMQPCPP)
message(STATUS "Not using AMQP-CPP")
return()
endif()
if (OS_FREEBSD)
message(STATUS "Not using AMQP-CPP because libuv is disabled")
return()
endif()
# can be removed once libuv build on MacOS with GCC is possible
if (NOT TARGET ch_contrib::uv)

2
contrib/cctz vendored

@ -1 +1 @@
Subproject commit 49c656c62fbd36a1bc20d64c476853bdb7cf7bb9
Subproject commit 5c8528fb35e89ee0b3a7157490423fba0d4dd7b5

6
contrib/krb5-cmake/CMakeLists.txt
View File

@ -578,6 +578,12 @@ if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
list(APPEND ALL_SRCS "${CMAKE_CURRENT_BINARY_DIR}/include_private/kcmrpc.c")
endif()
if (ENABLE_EXTERNAL_OPENSSL)
list(REMOVE_ITEM ALL_SRCS "${KRB5_SOURCE_DIR}/lib/crypto/openssl/enc_provider/aes.c")
list(APPEND ALL_SRCS "${CMAKE_CURRENT_SOURCE_DIR}/aes.c")
endif ()
target_sources(_krb5 PRIVATE
${ALL_SRCS}
)

2
contrib/libcxx vendored

@ -1 +1 @@
Subproject commit 172b2ae074f6755145b91c53a95c8540c1468239
Subproject commit 4db7f838afd3139eb3761694b04d31275df45d2d

2
contrib/libcxx-cmake/CMakeLists.txt
View File

@ -25,6 +25,7 @@ set(SRCS
"${LIBCXX_SOURCE_DIR}/src/ios.cpp"
"${LIBCXX_SOURCE_DIR}/src/ios.instantiations.cpp"
"${LIBCXX_SOURCE_DIR}/src/iostream.cpp"
"${LIBCXX_SOURCE_DIR}/src/legacy_debug_handler.cpp"
"${LIBCXX_SOURCE_DIR}/src/legacy_pointer_safety.cpp"
"${LIBCXX_SOURCE_DIR}/src/locale.cpp"
"${LIBCXX_SOURCE_DIR}/src/memory.cpp"
@ -49,6 +50,7 @@ set(SRCS
"${LIBCXX_SOURCE_DIR}/src/valarray.cpp"
"${LIBCXX_SOURCE_DIR}/src/variant.cpp"
"${LIBCXX_SOURCE_DIR}/src/vector.cpp"
"${LIBCXX_SOURCE_DIR}/src/verbose_abort.cpp"
)
add_library(cxx ${SRCS})

2
contrib/libcxxabi vendored

@ -1 +1 @@
Subproject commit 6eb7cc7a7bdd779e6734d1b9fb451df2274462d7
Subproject commit a736a6b3c6a7b8aae2ebad629ca21b2c55b4820e

1
contrib/libcxxabi-cmake/CMakeLists.txt
View File

@ -9,6 +9,7 @@ set(SRCS
"${LIBCXXABI_SOURCE_DIR}/src/cxa_exception_storage.cpp"
"${LIBCXXABI_SOURCE_DIR}/src/cxa_guard.cpp"
"${LIBCXXABI_SOURCE_DIR}/src/cxa_handlers.cpp"
# "${LIBCXXABI_SOURCE_DIR}/src/cxa_noexception.cpp"
"${LIBCXXABI_SOURCE_DIR}/src/cxa_personality.cpp"
"${LIBCXXABI_SOURCE_DIR}/src/cxa_thread_atexit.cpp"
"${LIBCXXABI_SOURCE_DIR}/src/cxa_vector.cpp"

35
contrib/libfuzzer-cmake/CMakeLists.txt Normal file
View File

@ -0,0 +1,35 @@
set(COMPILER_RT_FUZZER_SRC_DIR "${ClickHouse_SOURCE_DIR}/contrib/llvm-project/compiler-rt/lib/fuzzer")
set(FUZZER_SRCS
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerCrossOver.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerDataFlowTrace.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerDriver.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerExtFunctionsDlsym.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerExtFunctionsWeak.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerExtFunctionsWindows.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerExtraCounters.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerExtraCountersDarwin.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerExtraCountersWindows.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerFork.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerIO.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerIOPosix.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerIOWindows.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerLoop.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerMerge.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerMutate.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerSHA1.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerTracePC.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerUtil.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerUtilDarwin.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerUtilFuchsia.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerUtilLinux.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerUtilPosix.cpp"
"${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerUtilWindows.cpp"
)
add_library(_fuzzer_no_main STATIC ${FUZZER_SRCS})
add_library(ch_contrib::fuzzer_no_main ALIAS _fuzzer_no_main)
add_library(_fuzzer STATIC ${FUZZER_SRCS} "${COMPILER_RT_FUZZER_SRC_DIR}/FuzzerMain.cpp")
add_library(ch_contrib::fuzzer ALIAS _fuzzer)

6
contrib/libpq-cmake/CMakeLists.txt
View File

@ -59,6 +59,12 @@ set(SRCS
add_library(_libpq ${SRCS})
if (ENABLE_EXTERNAL_OPENSSL)
add_definitions(-DHAVE_BIO_METH_NEW)
add_definitions(-DHAVE_HMAC_CTX_NEW)
add_definitions(-DHAVE_HMAC_CTX_FREE)
endif ()
target_include_directories (_libpq SYSTEM PUBLIC ${LIBPQ_SOURCE_DIR})
target_include_directories (_libpq SYSTEM PUBLIC "${LIBPQ_SOURCE_DIR}/include")
target_include_directories (_libpq SYSTEM PRIVATE "${LIBPQ_SOURCE_DIR}/configs")

2
contrib/llvm-project vendored

@ -1 +1 @@
Subproject commit dc972a767ff2e9488d96cb2a6e67de160fbe15a7
Subproject commit 3a39038345a400e7e767811b142a94355d511215

17
contrib/llvm-project-cmake/CMakeLists.txt
View File

@ -1,4 +1,4 @@
if (APPLE OR NOT ARCH_AMD64 OR SANITIZE STREQUAL "undefined" OR NOT USE_STATIC_LIBRARIES)
if (APPLE OR NOT ARCH_AMD64 OR SANITIZE STREQUAL "undefined")
set (ENABLE_EMBEDDED_COMPILER_DEFAULT OFF)
else()
set (ENABLE_EMBEDDED_COMPILER_DEFAULT ON)
@ -6,20 +6,24 @@ endif()
option (ENABLE_EMBEDDED_COMPILER "Enable support for 'compile_expressions' option for query execution" ${ENABLE_EMBEDDED_COMPILER_DEFAULT})
# If USE_STATIC_LIBRARIES=0 was passed to CMake, we'll still build LLVM statically to keep complexity minimal.
if (NOT ENABLE_EMBEDDED_COMPILER)
message(STATUS "Not using LLVM")
return()
endif()
# TODO: Enable shared library build
# TODO: Enable compilation on AArch64
set (LLVM_VERSION "14.0.0bundled")
set (LLVM_VERSION "15.0.0bundled")
set (LLVM_INCLUDE_DIRS
"${ClickHouse_SOURCE_DIR}/contrib/llvm-project/llvm/include"
"${ClickHouse_BINARY_DIR}/contrib/llvm-project/llvm/include"
)
set (LLVM_LIBRARY_DIRS "${ClickHouse_BINARY_DIR}/contrib/llvm-project/llvm")
# NOTE: You should not remove this line since otherwise it will use default 20,
# and llvm cannot be compiled with bundled libcxx and 20 standard.
set (CMAKE_CXX_STANDARD 14)
# This list was generated by listing all LLVM libraries, compiling the binary and removing all libraries while it still compiles.
set (REQUIRED_LLVM_LIBRARIES
@ -62,9 +66,6 @@ set (REQUIRED_LLVM_LIBRARIES
# list(APPEND REQUIRED_LLVM_LIBRARIES LLVMAArch64Info LLVMAArch64Desc LLVMAArch64CodeGen)
# endif ()
# ld: unknown option: --color-diagnostics
# set (LINKER_SUPPORTS_COLOR_DIAGNOSTICS 0 CACHE INTERNAL "")
set (CMAKE_INSTALL_RPATH "ON") # Do not adjust RPATH in llvm, since then it will not be able to find libcxx/libcxxabi/libunwind
set (LLVM_COMPILER_CHECKED 1 CACHE INTERNAL "") # Skip internal compiler selection
set (LLVM_ENABLE_EH 1 CACHE INTERNAL "") # With exception handling
@ -80,6 +81,7 @@ set(LLVM_ENABLE_LIBXML2 0 CACHE INTERNAL "")
set(LLVM_ENABLE_LIBEDIT 0 CACHE INTERNAL "")
set(LLVM_ENABLE_LIBPFM 0 CACHE INTERNAL "")
set(LLVM_ENABLE_ZLIB 0 CACHE INTERNAL "")
set(LLVM_ENABLE_ZSTD 0 CACHE INTERNAL "")
set(LLVM_ENABLE_Z3_SOLVER 0 CACHE INTERNAL "")
set(LLVM_INCLUDE_TOOLS 0 CACHE INTERNAL "")
set(LLVM_BUILD_TOOLS 0 CACHE INTERNAL "")
@ -96,9 +98,6 @@ set(LLVM_INCLUDE_DOCS 0 CACHE INTERNAL "")
set(LLVM_ENABLE_OCAMLDOC 0 CACHE INTERNAL "")
set(LLVM_ENABLE_BINDINGS 0 CACHE INTERNAL "")
# C++20 is currently not supported due to ambiguous operator != etc.
set (CMAKE_CXX_STANDARD 17)
set (LLVM_SOURCE_DIR "${ClickHouse_SOURCE_DIR}/contrib/llvm-project/llvm")
set (LLVM_BINARY_DIR "${ClickHouse_BINARY_DIR}/contrib/llvm-project/llvm")
add_subdirectory ("${LLVM_SOURCE_DIR}" "${LLVM_BINARY_DIR}")

1
contrib/morton-nd vendored Submodule

@ -0,0 +1 @@
Subproject commit 3795491a4aa3cdc916c8583094683f0d68df5bc0

3
contrib/morton-nd-cmake/CMakeLists.txt Normal file
View File

@ -0,0 +1,3 @@
add_library(_morton_nd INTERFACE)
target_include_directories(_morton_nd SYSTEM BEFORE INTERFACE "${ClickHouse_SOURCE_DIR}/contrib/morton-nd/include/")
add_library(ch_contrib::morton_nd ALIAS _morton_nd)

2
contrib/rocksdb vendored

@ -1 +1 @@
Subproject commit e7c2b2f7bcf3b4b33892a1a6d25c32a93edfbdb9
Subproject commit 2c8998e26c6d46b27c710d7829c3a15e34959f70

22
contrib/rocksdb-cmake/CMakeLists.txt
View File

@ -78,23 +78,13 @@ endif()
include(CheckCCompilerFlag)
if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)64")
CHECK_C_COMPILER_FLAG("-mcpu=power9" HAS_POWER9)
if(HAS_POWER9)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mcpu=power9 -mtune=power9")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mcpu=power9 -mtune=power9")
if(POWER9)
set(HAS_POWER9 1)
set(HAS_ALTIVEC 1)
else()
CHECK_C_COMPILER_FLAG("-mcpu=power8" HAS_POWER8)
if(HAS_POWER8)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mcpu=power8 -mtune=power8")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mcpu=power8 -mtune=power8")
endif(HAS_POWER8)
endif(HAS_POWER9)
CHECK_C_COMPILER_FLAG("-maltivec" HAS_ALTIVEC)
if(HAS_ALTIVEC)
message(STATUS " HAS_ALTIVEC yes")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -maltivec")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -maltivec")
endif(HAS_ALTIVEC)
set(HAS_POWER8 1)
set(HAS_ALTIVEC 1)
endif(POWER9)
endif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)64")
if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64|arm64|ARM64")

2
contrib/zlib-ng vendored

@ -1 +1 @@
Subproject commit bffad6f6fe74d6a2f92e2668390664a926c68733
Subproject commit 50f0eae1a411764cd6d1e85b3ce471438acd3c1c

1
docker/docs/builder/run.sh
View File

@ -25,6 +25,7 @@ done
sed -i '/onBrokenMarkdownLinks:/ s/ignore/error/g' docusaurus.config.js
if [[ $# -lt 1 ]] || [[ "$1" == "--"* ]]; then
export CI=true
exec yarn build "$@"
fi

5
docker/packager/binary/Dockerfile
View File

@ -73,7 +73,7 @@ RUN apt-get install binutils-riscv64-linux-gnu
# Architecture of the image when BuildKit/buildx is used
ARG TARGETARCH
ARG NFPM_VERSION=2.18.1
ARG NFPM_VERSION=2.20.0
RUN arch=${TARGETARCH:-amd64} \
&& curl -Lo /tmp/nfpm.deb "https://github.com/goreleaser/nfpm/releases/download/v${NFPM_VERSION}/nfpm_${arch}.deb" \
@ -91,6 +91,9 @@ ENV PATH="$PATH:/usr/local/go/bin"
ENV GOPATH=/workdir/go
ENV GOCACHE=/workdir/
RUN curl https://raw.githubusercontent.com/matus-chochlik/ctcache/7fd516e91c17779cbc6fc18bd119313d9532dd90/clang-tidy-cache -Lo /usr/bin/clang-tidy-cache \
&& chmod +x /usr/bin/clang-tidy-cache
RUN mkdir /workdir && chmod 777 /workdir
WORKDIR /workdir

10
docker/packager/packager
View File

@ -208,6 +208,7 @@ def parse_env_variables(
cxx = cc.replace("gcc", "g++").replace("clang", "clang++")
if package_type == "deb":
# NOTE: This are the env for packages/build script
result.append("MAKE_DEB=true")
cmake_flags.append("-DENABLE_TESTS=0")
cmake_flags.append("-DENABLE_UTILS=0")
@ -257,6 +258,10 @@ def parse_env_variables(
if clang_tidy:
# 15G is not enough for tidy build
cache_maxsize = "25G"
# `CTCACHE_DIR` has the same purpose as the `CCACHE_DIR` above.
# It's there to have the clang-tidy cache embedded into our standard `CCACHE_DIR`
result.append("CTCACHE_DIR=/ccache/clang-tidy-cache")
result.append(f"CCACHE_MAXSIZE={cache_maxsize}")
if distcc_hosts:
@ -268,6 +273,7 @@ def parse_env_variables(
result.append('DISTCC_HOSTS="localhost/`nproc`"')
if additional_pkgs:
# NOTE: This are the env for packages/build script
result.append("MAKE_APK=true")
result.append("MAKE_RPM=true")
result.append("MAKE_TGZ=true")
@ -280,9 +286,7 @@ def parse_env_variables(
cmake_flags.append("-DENABLE_TESTS=1")
if shared_libraries:
cmake_flags.append(
"-DUSE_STATIC_LIBRARIES=0 -DSPLIT_SHARED_LIBRARIES=1"
)
cmake_flags.append("-DUSE_STATIC_LIBRARIES=0 -DSPLIT_SHARED_LIBRARIES=1")
# We can't always build utils because it requires too much space, but
# we have to build them at least in some way in CI. The shared library
# build is probably the least heavy disk-wise.

2
docker/server/Dockerfile.alpine
View File

@ -33,7 +33,7 @@ RUN arch=${TARGETARCH:-amd64} \
# lts / testing / prestable / etc
ARG REPO_CHANNEL="stable"
ARG REPOSITORY="https://packages.clickhouse.com/tgz/${REPO_CHANNEL}"
ARG VERSION="22.9.3.18"
ARG VERSION="22.10.2.11"
ARG PACKAGES="clickhouse-client clickhouse-server clickhouse-common-static"
# user/group precreated explicitly with fixed uid/gid on purpose.

12
docker/server/Dockerfile.ubuntu
View File

@ -21,7 +21,7 @@ RUN sed -i "s|http://archive.ubuntu.com|${apt_archive}|g" /etc/apt/sources.list
ARG REPO_CHANNEL="stable"
ARG REPOSITORY="deb https://packages.clickhouse.com/deb ${REPO_CHANNEL} main"
ARG VERSION="22.9.3.18"
ARG VERSION="22.10.2.11"
ARG PACKAGES="clickhouse-client clickhouse-server clickhouse-common-static"
# set non-empty deb_location_url url to create a docker image
@ -80,6 +80,16 @@ RUN arch=${TARGETARCH:-amd64} \
&& mkdir -p /var/lib/clickhouse /var/log/clickhouse-server /etc/clickhouse-server /etc/clickhouse-client \
&& chmod ugo+Xrw -R /var/lib/clickhouse /var/log/clickhouse-server /etc/clickhouse-server /etc/clickhouse-client
# Remove as much of Ubuntu as possible.
# ClickHouse does not need Ubuntu. It can run on top of Linux kernel without any OS distribution.
# ClickHouse does not need Docker at all. ClickHouse is above all that.
# It does not care about Ubuntu, Docker, or other cruft and you should neither.
# The fact that this Docker image is based on Ubuntu is just a misconception.
# Some vulnerability scanners are arguing about Ubuntu, which is not relevant to ClickHouse at all.
# ClickHouse does not care when you report false vulnerabilities by running some Docker scanners.
RUN apt-get remove --purge -y libksba8 && apt-get autoremove -y
# we need to allow "others" access to clickhouse folder, because docker container
# can be started with arbitrary uid (openshift usecase)

5
docker/test/codebrowser/Dockerfile
View File

@ -36,10 +36,7 @@ RUN arch=${TARGETARCH:-amd64} \
# repo versions doesn't work correctly with C++17
# also we push reports to s3, so we add index.html to subfolder urls
# https://github.com/ClickHouse-Extras/woboq_codebrowser/commit/37e15eaf377b920acb0b48dbe82471be9203f76b
# TODO: remove branch in a few weeks after merge, e.g. in May or June 2022
#
# FIXME: update location of a repo
RUN git clone https://github.com/azat/woboq_codebrowser --branch llvm-15 \
RUN git clone https://github.com/ClickHouse/woboq_codebrowser \
&& cd woboq_codebrowser \
&& cmake . -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_COMPILER=clang\+\+-${LLVM_VERSION} -DCMAKE_C_COMPILER=clang-${LLVM_VERSION} \
&& ninja \

1
docker/test/fasttest/run.sh
View File

@ -136,6 +136,7 @@ function clone_submodules
contrib/wyhash
contrib/hashidsxx
contrib/c-ares
contrib/morton-nd
)
git submodule sync

6
docker/test/fuzzer/allow-nullable-key.xml Normal file
View File

@ -0,0 +1,6 @@
<clickhouse>
<!-- Allow nullable key to avoid errors while fuzzing definitions of tables -->
<merge_tree>
<allow_nullable_key>1</allow_nullable_key>
</merge_tree>
</clickhouse>

9
docker/test/fuzzer/run-fuzzer.sh
View File

@ -94,6 +94,7 @@ function configure
# TODO figure out which ones are needed
cp -av --dereference "$repo_dir"/tests/config/config.d/listen.xml db/config.d
cp -av --dereference "$script_dir"/query-fuzzer-tweaks-users.xml db/users.d
cp -av --dereference "$script_dir"/allow-nullable-key.xml db/config.d
cat > db/config.d/core.xml <<EOL
<clickhouse>
@ -177,7 +178,7 @@ function fuzz
# interferes with gdb
export CLICKHOUSE_WATCHDOG_ENABLE=0
# NOTE: we use process substitution here to preserve keep $! as a pid of clickhouse-server
clickhouse-server --config-file db/config.xml --pid-file /var/run/clickhouse-server/clickhouse-server.pid -- --path db > >(tail -100000 > server.log) 2>&1 &
clickhouse-server --config-file db/config.xml --pid-file /var/run/clickhouse-server/clickhouse-server.pid -- --path db 2>&1 | pigz > server.log.gz &
server_pid=$!
kill -0 $server_pid
@ -240,6 +241,7 @@ quit
--receive_data_timeout_ms=10000 \
--stacktrace \
--query-fuzzer-runs=1000 \
--create-query-fuzzer-runs=50 \
--queries-file $(ls -1 ch/tests/queries/0_stateless/*.sql | sort -R) \
$NEW_TESTS_OPT \
> >(tail -n 100000 > fuzzer.log) \
@ -295,7 +297,7 @@ quit
# The server has died.
task_exit_code=210
echo "failure" > status.txt
if ! grep --text -ao "Received signal.*\|Logical error.*\|Assertion.*failed\|Failed assertion.*\|.*runtime error: .*\|.*is located.*\|SUMMARY: AddressSanitizer:.*\|SUMMARY: MemorySanitizer:.*\|SUMMARY: ThreadSanitizer:.*\|.*_LIBCPP_ASSERT.*" server.log > description.txt
if ! zgrep --text -ao "Received signal.*\|Logical error.*\|Assertion.*failed\|Failed assertion.*\|.*runtime error: .*\|.*is located.*\|SUMMARY: AddressSanitizer:.*\|SUMMARY: MemorySanitizer:.*\|SUMMARY: ThreadSanitizer:.*\|.*_LIBCPP_ASSERT.*" server.log.gz > description.txt
then
echo "Lost connection to server. See the logs." > description.txt
fi
@ -389,8 +391,9 @@ th { cursor: pointer; }
<h1>AST Fuzzer for PR #${PR_TO_TEST} @ ${SHA_TO_TEST}</h1>
<p class="links">
<a href="runlog.log">runlog.log</a>
<a href="fuzzer.log">fuzzer.log</a>
<a href="server.log">server.log</a>
<a href="server.log.gz">server.log.gz</a>
<a href="main.log">main.log</a>
${CORE_LINK}
</p>

5
docker/test/integration/base/Dockerfile
View File

@ -27,9 +27,14 @@ RUN apt-get update \
tar \
tzdata \
unixodbc \
python3-pip \
libcurl4-openssl-dev \
libssl-dev \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/* /var/cache/debconf /tmp/*
RUN pip3 install pycurl
# Architecture of the image when BuildKit/buildx is used
ARG TARGETARCH

4
docker/test/keeper-jepsen/run.sh
View File

@ -15,8 +15,8 @@ if [ -z "$CLICKHOUSE_REPO_PATH" ]; then
ls -lath ||:
fi
cd "$CLICKHOUSE_REPO_PATH/tests/jepsen.clickhouse-keeper"
cd "$CLICKHOUSE_REPO_PATH/tests/jepsen.clickhouse"
(lein run test-all --nodes-file "$NODES_FILE_PATH" --username "$NODES_USERNAME" --logging-json --password "$NODES_PASSWORD" --time-limit "$TIME_LIMIT" --concurrency 50 -r 50 --snapshot-distance 100 --stale-log-gap 100 --reserved-log-items 10 --lightweight-run --clickhouse-source "$CLICKHOUSE_PACKAGE" -q --test-count "$TESTS_TO_RUN" || true) | tee "$TEST_OUTPUT/jepsen_run_all_tests.log"
(lein run keeper test-all --nodes-file "$NODES_FILE_PATH" --username "$NODES_USERNAME" --logging-json --password "$NODES_PASSWORD" --time-limit "$TIME_LIMIT" --concurrency 50 -r 50 --snapshot-distance 100 --stale-log-gap 100 --reserved-log-items 10 --lightweight-run --clickhouse-source "$CLICKHOUSE_PACKAGE" -q --test-count "$TESTS_TO_RUN" || true) | tee "$TEST_OUTPUT/jepsen_run_all_tests.log"
mv store "$TEST_OUTPUT/"

43
docker/test/server-jepsen/Dockerfile Normal file
View File

@ -0,0 +1,43 @@
# rebuild in #33610
# docker build -t clickhouse/server-jepsen-test .
ARG FROM_TAG=latest
FROM clickhouse/test-base:$FROM_TAG
ENV DEBIAN_FRONTEND=noninteractive
ENV CLOJURE_VERSION=1.10.3.814
# arguments
ENV PR_TO_TEST=""
ENV SHA_TO_TEST=""
ENV NODES_USERNAME="root"
ENV NODES_PASSWORD=""
ENV TESTS_TO_RUN="8"
ENV TIME_LIMIT="30"
ENV KEEPER_NODE=""
# volumes
ENV NODES_FILE_PATH="/nodes.txt"
ENV TEST_OUTPUT="/test_output"
RUN mkdir "/root/.ssh"
RUN touch "/root/.ssh/known_hosts"
# install java
RUN apt-get update && apt-get install default-jre default-jdk libjna-java libjna-jni ssh gnuplot graphviz --yes --no-install-recommends
# install clojure
RUN curl -O "https://download.clojure.org/install/linux-install-${CLOJURE_VERSION}.sh" && \
chmod +x "linux-install-${CLOJURE_VERSION}.sh" && \
bash "./linux-install-${CLOJURE_VERSION}.sh"
# install leiningen
RUN curl -O "https://raw.githubusercontent.com/technomancy/leiningen/stable/bin/lein" && \
chmod +x ./lein && \
mv ./lein /usr/bin
COPY run.sh /
CMD ["/bin/bash", "/run.sh"]

22
docker/test/server-jepsen/run.sh Normal file
View File

@ -0,0 +1,22 @@
#!/usr/bin/env bash
set -euo pipefail
CLICKHOUSE_PACKAGE=${CLICKHOUSE_PACKAGE:="https://clickhouse-builds.s3.amazonaws.com/$PR_TO_TEST/$SHA_TO_TEST/clickhouse_build_check/clang-15_relwithdebuginfo_none_unsplitted_disable_False_binary/clickhouse"}
CLICKHOUSE_REPO_PATH=${CLICKHOUSE_REPO_PATH:=""}
if [ -z "$CLICKHOUSE_REPO_PATH" ]; then
CLICKHOUSE_REPO_PATH=ch
rm -rf ch ||:
mkdir ch ||:
wget -nv -nd -c "https://clickhouse-test-reports.s3.amazonaws.com/$PR_TO_TEST/$SHA_TO_TEST/repo/clickhouse_no_subs.tar.gz"
tar -C ch --strip-components=1 -xf clickhouse_no_subs.tar.gz
ls -lath ||:
fi
cd "$CLICKHOUSE_REPO_PATH/tests/jepsen.clickhouse"
(lein run server test-all --keeper "$KEEPER_NODE" --nodes-file "$NODES_FILE_PATH" --username "$NODES_USERNAME" --logging-json --password "$NODES_PASSWORD" --time-limit "$TIME_LIMIT" --concurrency 50 -r 50 --clickhouse-source "$CLICKHOUSE_PACKAGE" --test-count "$TESTS_TO_RUN" || true) | tee "$TEST_OUTPUT/jepsen_run_all_tests.log"
mv store "$TEST_OUTPUT/"

2
docker/test/sqlancer/Dockerfile
View File

@ -1,5 +1,5 @@
# docker build -t clickhouse/sqlancer-test .
FROM ubuntu:20.04
FROM ubuntu:22.04
# ARG for quick switch to a given ubuntu mirror
ARG apt_archive="http://archive.ubuntu.com"

46
docker/test/sqlancer/process_sqlancer_result.py
View File

@ -11,13 +11,15 @@ def process_result(result_folder):
summary = []
paths = []
tests = [
"TLPWhere",
"TLPAggregate",
"TLPDistinct",
"TLPGroupBy",
"TLPHaving",
"TLPWhere",
"TLPWhereGroupBy",
"TLPDistinct",
"TLPAggregate",
"NoREC",
]
failed_tests = []
for test in tests:
err_path = "{}/{}.err".format(result_folder, test)
@ -33,15 +35,11 @@ def process_result(result_folder):
with open(err_path, "r") as f:
if "AssertionError" in f.read():
summary.append((test, "FAIL"))
failed_tests.append(test)
status = "failure"
else:
summary.append((test, "OK"))
logs_path = "{}/logs.tar.gz".format(result_folder)
if not os.path.exists(logs_path):
logging.info("No logs tar on path %s", logs_path)
else:
paths.append(logs_path)
stdout_path = "{}/stdout.log".format(result_folder)
if not os.path.exists(stdout_path):
logging.info("No stdout log on path %s", stdout_path)
@ -53,18 +51,23 @@ def process_result(result_folder):
else:
paths.append(stderr_path)
description = "SQLancer test run. See report"
description = "SQLancer run successfully"
if status == "failure":
description = f"Failed oracles: {failed_tests}"
return status, description, summary, paths
def write_results(results_file, status_file, results, status):
def write_results(
results_file, status_file, description_file, results, status, description
):
with open(results_file, "w") as f:
out = csv.writer(f, delimiter="\t")
out.writerows(results)
with open(status_file, "w") as f:
out = csv.writer(f, delimiter="\t")
out.writerow(status)
f.write(status + "\n")
with open(description_file, "w") as f:
f.write(description + "\n")
if __name__ == "__main__":
@ -72,13 +75,20 @@ if __name__ == "__main__":
parser = argparse.ArgumentParser(
description="ClickHouse script for parsing results of sqlancer test"
)
parser.add_argument("--in-results-dir", default="/test_output/")
parser.add_argument("--out-results-file", default="/test_output/test_results.tsv")
parser.add_argument("--out-status-file", default="/test_output/check_status.tsv")
parser.add_argument("--in-results-dir", default="/workspace/")
parser.add_argument("--out-results-file", default="/workspace/summary.tsv")
parser.add_argument("--out-description-file", default="/workspace/description.txt")
parser.add_argument("--out-status-file", default="/workspace/status.txt")
args = parser.parse_args()
state, description, test_results, logs = process_result(args.in_results_dir)
status, description, summary, logs = process_result(args.in_results_dir)
logging.info("Result parsed")
status = (state, description)
write_results(args.out_results_file, args.out_status_file, test_results, status)
write_results(
args.out_results_file,
args.out_status_file,
args.out_description_file,
summary,
status,
description,
)
logging.info("Result written")

73
docker/test/sqlancer/run.sh
View File

@ -1,33 +1,62 @@
#!/bin/bash
set -exu
trap "exit" INT TERM
set -e -x
function wget_with_retry
{
for _ in 1 2 3 4; do
if wget -nv -nd -c "$1";then
return 0
else
sleep 0.5
fi
done
return 1
}
dpkg -i package_folder/clickhouse-common-static_*.deb
dpkg -i package_folder/clickhouse-common-static-dbg_*.deb
dpkg -i package_folder/clickhouse-server_*.deb
dpkg -i package_folder/clickhouse-client_*.deb
if [ -z ${BINARY_URL_TO_DOWNLOAD+x} ]
then
echo "No BINARY_URL_TO_DOWNLOAD provided."
else
wget_with_retry "$BINARY_URL_TO_DOWNLOAD"
chmod +x /clickhouse
fi
service clickhouse-server start && sleep 5
if [[ -f "/clickhouse" ]]; then
echo "/clickhouse exists"
else
exit 1
fi
cd /workspace
/clickhouse server -P /workspace/clickhouse-server.pid -L /workspace/clickhouse-server.log -E /workspace/clickhouse-server.log.err --daemon
for _ in $(seq 1 60); do if [[ $(wget -q 'localhost:8123' -O-) == 'Ok.' ]]; then break ; else sleep 1; fi ; done
cd /sqlancer/sqlancer-master
export TIMEOUT=300
export NUM_QUERIES=1000
TIMEOUT=300
NUM_QUERIES=1000
NUM_THREADS=10
TESTS=( "TLPGroupBy" "TLPHaving" "TLPWhere" "TLPDistinct" "TLPAggregate" "NoREC" )
echo "${TESTS[@]}"
( java -jar target/sqlancer-*.jar --num-threads 10 --timeout-seconds $TIMEOUT --num-queries $NUM_QUERIES --username default --password "" clickhouse --oracle TLPWhere | tee /test_output/TLPWhere.out ) 3>&1 1>&2 2>&3 | tee /test_output/TLPWhere.err
( java -jar target/sqlancer-*.jar --num-threads 10 --timeout-seconds $TIMEOUT --num-queries $NUM_QUERIES --username default --password "" clickhouse --oracle TLPGroupBy | tee /test_output/TLPGroupBy.out ) 3>&1 1>&2 2>&3 | tee /test_output/TLPGroupBy.err
( java -jar target/sqlancer-*.jar --num-threads 10 --timeout-seconds $TIMEOUT --num-queries $NUM_QUERIES --username default --password "" clickhouse --oracle TLPHaving | tee /test_output/TLPHaving.out ) 3>&1 1>&2 2>&3 | tee /test_output/TLPHaving.err
( java -jar target/sqlancer-*.jar --num-threads 10 --timeout-seconds $TIMEOUT --num-queries $NUM_QUERIES --username default --password "" clickhouse --oracle TLPWhere --oracle TLPGroupBy | tee /test_output/TLPWhereGroupBy.out ) 3>&1 1>&2 2>&3 | tee /test_output/TLPWhereGroupBy.err
( java -jar target/sqlancer-*.jar --num-threads 10 --timeout-seconds $TIMEOUT --num-queries $NUM_QUERIES --username default --password "" clickhouse --oracle TLPDistinct | tee /test_output/TLPDistinct.out ) 3>&1 1>&2 2>&3 | tee /test_output/TLPDistinct.err
( java -jar target/sqlancer-*.jar --num-threads 10 --timeout-seconds $TIMEOUT --num-queries $NUM_QUERIES --username default --password "" clickhouse --oracle TLPAggregate | tee /test_output/TLPAggregate.out ) 3>&1 1>&2 2>&3 | tee /test_output/TLPAggregate.err
for TEST in "${TESTS[@]}"; do
echo "$TEST"
if [[ $(wget -q 'localhost:8123' -O-) == 'Ok.' ]]
then
echo "Server is OK"
( java -jar target/sqlancer-*.jar --log-each-select true --print-failed false --num-threads "$NUM_THREADS" --timeout-seconds "$TIMEOUT" --num-queries "$NUM_QUERIES" --username default --password "" clickhouse --oracle "$TEST" | tee "/workspace/$TEST.out" ) 3>&1 1>&2 2>&3 | tee "/workspace/$TEST.err"
else
touch "/workspace/$TEST.err" "/workspace/$TEST.out"
echo "Server is not responding" | tee /workspace/server_crashed.log
fi
done
service clickhouse stop
ls /workspace
pkill -F /workspace/clickhouse-server.pid || true
ls /var/log/clickhouse-server/
tar czf /test_output/logs.tar.gz -C /var/log/clickhouse-server/ .
tail -n 1000 /var/log/clickhouse-server/stderr.log > /test_output/stderr.log
tail -n 1000 /var/log/clickhouse-server/stdout.log > /test_output/stdout.log
tail -n 1000 /var/log/clickhouse-server/clickhouse-server.log > /test_output/clickhouse-server.log
for _ in $(seq 1 60); do if [[ $(wget -q 'localhost:8123' -O-) == 'Ok.' ]]; then sleep 1 ; else break; fi ; done
/process_sqlancer_result.py || echo -e "failure\tCannot parse results" > /test_output/check_status.tsv
ls /test_output
/process_sqlancer_result.py || echo -e "failure\tCannot parse results" > /workspace/check_status.tsv
ls /workspace

1
docker/test/stateless/Dockerfile
View File

@ -11,6 +11,7 @@ RUN apt-get update -y \
apt-get install --yes --no-install-recommends \
awscli \
brotli \
lz4 \
expect \
golang \
lsof \

32
docker/test/stress/run.sh Executable file → Normal file
View File

@ -47,7 +47,6 @@ function install_packages()
function configure()
{
export ZOOKEEPER_FAULT_INJECTION=1
# install test configs
export USE_DATABASE_ORDINARY=1
export EXPORT_S3_STORAGE_POLICIES=1
@ -203,6 +202,7 @@ quit
install_packages package_folder
export ZOOKEEPER_FAULT_INJECTION=1
configure
azurite-blob --blobHost 0.0.0.0 --blobPort 10000 --debug /azurite_log &
@ -243,6 +243,7 @@ stop
# Let's enable S3 storage by default
export USE_S3_STORAGE_FOR_MERGE_TREE=1
export ZOOKEEPER_FAULT_INJECTION=1
configure
# But we still need default disk because some tables loaded only into it
@ -270,10 +271,6 @@ clickhouse-client --query "SELECT 'Server successfully started', 'OK'" >> /test_
|| (echo -e 'Server failed to start (see application_errors.txt and clickhouse-server.clean.log)\tFAIL' >> /test_output/test_results.tsv \
&& grep -a "<Error>.*Application" /var/log/clickhouse-server/clickhouse-server.log > /test_output/application_errors.txt)
echo "Get previous release tag"
previous_release_tag=$(clickhouse-client --query="SELECT version()" | get_previous_release_tag)
echo $previous_release_tag
stop
[ -f /var/log/clickhouse-server/clickhouse-server.log ] || echo -e "Server log does not exist\tFAIL"
@ -331,6 +328,10 @@ zgrep -Fa " received signal " /test_output/gdb.log > /dev/null \
echo -e "Backward compatibility check\n"
echo "Get previous release tag"
previous_release_tag=$(clickhouse-client --version | grep -o "[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*" | get_previous_release_tag)
echo $previous_release_tag
echo "Clone previous release repository"
git clone https://github.com/ClickHouse/ClickHouse.git --no-tags --progress --branch=$previous_release_tag --no-recurse-submodules --depth=1 previous_release_repository
@ -375,6 +376,8 @@ else
install_packages previous_release_package_folder
# Start server from previous release
# Previous version may not be ready for fault injections
export ZOOKEEPER_FAULT_INJECTION=0
configure
# Avoid "Setting s3_check_objects_after_upload is neither a builtin setting..."
@ -389,12 +392,23 @@ else
clickhouse-client --query="SELECT 'Server version: ', version()"
# Install new package before running stress test because we should use new clickhouse-client and new clickhouse-test
# But we should leave old binary in /usr/bin/ for gdb (so it will print sane stacktarces)
# Install new package before running stress test because we should use new
# clickhouse-client and new clickhouse-test.
#
# But we should leave old binary in /usr/bin/ and debug symbols in
# /usr/lib/debug/usr/bin (if any) for gdb and internal DWARF parser, so it
# will print sane stacktraces and also to avoid possible crashes.
#
# FIXME: those files can be extracted directly from debian package, but
# actually better solution will be to use different PATH instead of playing
# games with files from packages.
mv /usr/bin/clickhouse previous_release_package_folder/
mv /usr/lib/debug/usr/bin/clickhouse.debug previous_release_package_folder/
install_packages package_folder
mv /usr/bin/clickhouse package_folder/
mv /usr/lib/debug/usr/bin/clickhouse.debug package_folder/
mv previous_release_package_folder/clickhouse /usr/bin/
mv previous_release_package_folder/clickhouse.debug /usr/lib/debug/usr/bin/clickhouse.debug
mkdir tmp_stress_output
@ -410,6 +424,8 @@ else
# Start new server
mv package_folder/clickhouse /usr/bin/
mv package_folder/clickhouse.debug /usr/lib/debug/usr/bin/clickhouse.debug
export ZOOKEEPER_FAULT_INJECTION=1
configure
start 500
clickhouse-client --query "SELECT 'Backward compatibility check: Server successfully started', 'OK'" >> /test_output/test_results.tsv \
@ -464,6 +480,8 @@ else
-e "[Queue = DB::MergeMutateRuntimeQueue]: Code: 235. DB::Exception: Part" \
-e "The set of parts restored in place of" \
-e "(ReplicatedMergeTreeAttachThread): Initialization failed. Error" \
-e "Code: 269. DB::Exception: Destination table is myself" \
-e "Coordination::Exception: Connection loss" \
/var/log/clickhouse-server/clickhouse-server.backward.clean.log | zgrep -Fa "<Error>" > /test_output/bc_check_error_messages.txt \
&& echo -e 'Backward compatibility check: Error message in clickhouse-server.log (see bc_check_error_messages.txt)\tFAIL' >> /test_output/test_results.tsv \
|| echo -e 'Backward compatibility check: No Error messages in clickhouse-server.log\tOK' >> /test_output/test_results.tsv

2
docker/test/stress/stress
View File

@ -286,9 +286,7 @@ if __name__ == "__main__":
# But right now it should work, since neither hung check, nor 00001_select_1 has GROUP BY.
"--client-option",
"max_untracked_memory=1Gi",
"--client-option",
"max_memory_usage_for_user=0",
"--client-option",
"memory_profiler_step=1Gi",
# Use system database to avoid CREATE/DROP DATABASE queries
"--database=system",

4
docker/test/style/Dockerfile
View File

@ -1,7 +1,7 @@
# docker build -t clickhouse/style-test .
FROM ubuntu:20.04
ARG ACT_VERSION=0.2.25
ARG ACTIONLINT_VERSION=1.6.8
ARG ACT_VERSION=0.2.33
ARG ACTIONLINT_VERSION=1.6.22
# ARG for quick switch to a given ubuntu mirror
ARG apt_archive="http://archive.ubuntu.com"

4
docker/test/util/Dockerfile
View File

@ -5,6 +5,7 @@ FROM ubuntu:20.04
ARG apt_archive="http://archive.ubuntu.com"
RUN sed -i "s|http://archive.ubuntu.com|$apt_archive|g" /etc/apt/sources.list
# 15.0.2
ENV DEBIAN_FRONTEND=noninteractive LLVM_VERSION=15
RUN apt-get update \
@ -58,6 +59,9 @@ RUN apt-get update \
RUN ln -s /usr/bin/lld-${LLVM_VERSION} /usr/bin/ld.lld
# for external_symbolizer_path
RUN ln -s /usr/bin/llvm-symbolizer-${LLVM_VERSION} /usr/bin/llvm-symbolizer
# FIXME: workaround for "The imported target "merge-fdata" references the file" error
# https://salsa.debian.org/pkg-llvm-team/llvm-toolchain/-/commit/992e52c0b156a5ba9c6a8a54f8c4857ddd3d371d
RUN sed -i '/_IMPORT_CHECK_FILES_FOR_\(mlir-\|llvm-bolt\|merge-fdata\|MLIR\)/ {s|^|#|}' /usr/lib/llvm-${LLVM_VERSION}/lib/cmake/llvm/LLVMExports-*.cmake
ARG CCACHE_VERSION=4.6.1
RUN mkdir /tmp/ccache \

2
docs/README.md
View File

@ -212,4 +212,4 @@ Templates:
## How to Build Documentation
You can build your documentation manually by following the instructions in [docs/tools/README.md](../docs/tools/README.md). Also, our CI runs the documentation build after the `documentation` label is added to PR. You can see the results of a build in the GitHub interface. If you have no permissions to add labels, a reviewer of your PR will add it.
You can build your documentation manually by following the instructions in the docs repo [contrib-writing-guide](https://github.com/ClickHouse/clickhouse-docs/blob/main/contrib-writing-guide.md). Also, our CI runs the documentation build after the `documentation` label is added to PR. You can see the results of a build in the GitHub interface. If you have no permissions to add labels, a reviewer of your PR will add it.

352
docs/changelogs/v22.10.1.1877-stable.md Normal file
View File

@ -0,0 +1,352 @@
---
sidebar_position: 1
sidebar_label: 2022
---
# 2022 Changelog
### ClickHouse release v22.10.1.1877-stable (98ab5a3c189) FIXME as compared to v22.9.1.2603-stable (3030d4c7ff0)
#### Backward Incompatible Change
* Rename cache commands: `show caches` -> `show filesystem caches`, `describe cache` -> `describe filesystem cache`. [#41508](https://github.com/ClickHouse/ClickHouse/pull/41508) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Remove support for the `WITH TIMEOUT` section for `LIVE VIEW`. This closes [#40557](https://github.com/ClickHouse/ClickHouse/issues/40557). [#42173](https://github.com/ClickHouse/ClickHouse/pull/42173) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### New Feature
* Add Rust code support into ClickHouse with BLAKE3 hash-function library as an example. [#33435](https://github.com/ClickHouse/ClickHouse/pull/33435) ([BoloniniD](https://github.com/BoloniniD)).
* This is the initial implement of Kusto Query Language. (MVP). [#37961](https://github.com/ClickHouse/ClickHouse/pull/37961) ([Yong Wang](https://github.com/kashwy)).
* * Support limiting of temporary data stored on disk using settings `max_temporary_data_on_disk_size_for_user`/`max_temporary_data_on_disk_size_for_query` . [#40893](https://github.com/ClickHouse/ClickHouse/pull/40893) ([Vladimir C](https://github.com/vdimir)).
* Support Java integers hashing in `javaHash`. [#41131](https://github.com/ClickHouse/ClickHouse/pull/41131) ([JackyWoo](https://github.com/JackyWoo)).
* This PR is to support the OpenSSL in-house build like the BoringSSL submodule. Build flag i.e. ENABLE_CH_BUNDLE_BORINGSSL is used to choose between BoringSSL and OpenSSL. By default, the BoringSSL in-house build will be used. [#41142](https://github.com/ClickHouse/ClickHouse/pull/41142) ([MeenaRenganathan22](https://github.com/MeenaRenganathan22)).
* Composable protocol configuration is added. [#41198](https://github.com/ClickHouse/ClickHouse/pull/41198) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
* Add OpenTelemetry support to ON CLUSTER DDL(require `distributed_ddl_entry_format_version` to be set to 4). [#41484](https://github.com/ClickHouse/ClickHouse/pull/41484) ([Frank Chen](https://github.com/FrankChen021)).
* Add setting `format_json_object_each_row_column_for_object_name` to write/parse object name as column value in JSONObjectEachRow format. [#41703](https://github.com/ClickHouse/ClickHouse/pull/41703) ([Kruglov Pavel](https://github.com/Avogar)).
* adds Morton Coding (ZCurve) encode/decode functions. [#41753](https://github.com/ClickHouse/ClickHouse/pull/41753) ([Constantine Peresypkin](https://github.com/pkit)).
* Implement support for different UUID binary formats with support for the two most prevalent ones: the default big-endian and Microsoft's mixed-endian as specified in [RFC 4122](https://datatracker.ietf.org/doc/html/rfc4122#section-4.1.1). [#42108](https://github.com/ClickHouse/ClickHouse/pull/42108) ([ltrk2](https://github.com/ltrk2)).
* Added an aggregate function `analysisOfVariance` (`anova`) to perform a statistical test over several groups of normally distributed observations to find out whether all groups have the same mean or not. Original PR [#37872](https://github.com/ClickHouse/ClickHouse/issues/37872). [#42131](https://github.com/ClickHouse/ClickHouse/pull/42131) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Add support for `SET setting_name = DEFAULT`. [#42187](https://github.com/ClickHouse/ClickHouse/pull/42187) ([Filatenkov Artur](https://github.com/FArthur-cmd)).
* * Add `URL` Functions which conform rfc. Functions include: `cutToFirstSignificantSubdomainCustomRFC`, `cutToFirstSignificantSubdomainCustomWithWWWRFC`, `cutToFirstSignificantSubdomainRFC`, `cutToFirstSignificantSubdomainWithWWWRFC`, `domainRFC`, `domainWithoutWWWRFC`, `firstSignificantSubdomainCustomRFC`, `firstSignificantSubdomainRFC`, `portRFC`, `topLevelDomainRFC`. [#42274](https://github.com/ClickHouse/ClickHouse/pull/42274) ([Quanfa Fu](https://github.com/dentiscalprum)).
* Added functions (`randUniform`, `randNormal`, `randLogNormal`, `randExponential`, `randChiSquared`, `randStudentT`, `randFisherF`, `randBernoulli`, `randBinomial`, `randNegativeBinomial`, `randPoisson` ) to generate random values according to the specified distributions. This closes [#21834](https://github.com/ClickHouse/ClickHouse/issues/21834). [#42411](https://github.com/ClickHouse/ClickHouse/pull/42411) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
#### Performance Improvement
* Implement operator precedence element parser to resolve stack overflow issues and make the required stack size smaller. [#34892](https://github.com/ClickHouse/ClickHouse/pull/34892) ([Nikolay Degterinsky](https://github.com/evillique)).
* DISTINCT in order optimization leverage sorting properties of data streams. This improvement will enable reading in order for DISTINCT if applicable (before it was necessary to provide ORDER BY for columns in DISTINCT). [#41014](https://github.com/ClickHouse/ClickHouse/pull/41014) ([Igor Nikonov](https://github.com/devcrafter)).
* ColumnVector: optimize UInt8 index with AVX512VBMI. [#41247](https://github.com/ClickHouse/ClickHouse/pull/41247) ([Guo Wangyang](https://github.com/guowangy)).
* The performance experiments of **SSB** (Star Schema Benchmark) on the ICX device (Intel Xeon Platinum 8380 CPU, 80 cores, 160 threads) shows that this change could bring a **2.95x** improvement of the geomean of all subcases' QPS. [#41675](https://github.com/ClickHouse/ClickHouse/pull/41675) ([Zhiguo Zhou](https://github.com/ZhiguoZh)).
* Fixed slowness in JSONExtract with LowCardinality(String) tuples. [#41726](https://github.com/ClickHouse/ClickHouse/pull/41726) ([AlfVII](https://github.com/AlfVII)).
* Add ldapr capabilities to AArch64 builds. This is supported from Graviton 2+, Azure and GCP instances. Only appeared in clang-15 [not so long ago](https://github.com/llvm/llvm-project/commit/9609b5daffe9fd28d83d83da895abc5113f76c24). [#41778](https://github.com/ClickHouse/ClickHouse/pull/41778) ([Daniel Kutenin](https://github.com/danlark1)).
* Improve performance when comparing strings and one argument is empty constant string. [#41870](https://github.com/ClickHouse/ClickHouse/pull/41870) ([Jiebin Sun](https://github.com/jiebinn)).
* optimize insertFrom of ColumnAggregateFunction to share Aggregate State in some cases. [#41960](https://github.com/ClickHouse/ClickHouse/pull/41960) ([flynn](https://github.com/ucasfl)).
* Relax the "Too many parts" threshold. This closes [#6551](https://github.com/ClickHouse/ClickHouse/issues/6551). Now ClickHouse will allow more parts in a partition if the average part size is large enough (at least 10 GiB). This allows to have up to petabytes of data in a single partition of a single table on a single server, which is possible using disk shelves or object storage. [#42002](https://github.com/ClickHouse/ClickHouse/pull/42002) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Make writing to AzureBlobStorage more efficient (respect `max_single_part_upload_size` instead of writing a block per each buffer size). Inefficiency mentioned in [#41754](https://github.com/ClickHouse/ClickHouse/issues/41754). [#42041](https://github.com/ClickHouse/ClickHouse/pull/42041) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Make thread ids in the process list and query_log unique to avoid waste. [#42180](https://github.com/ClickHouse/ClickHouse/pull/42180) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### Improvement
* Added new infrastructure for query analysis and planning under `allow_experimental_analyzer` setting. [#31796](https://github.com/ClickHouse/ClickHouse/pull/31796) ([Maksim Kita](https://github.com/kitaisreal)).
* * Support expression `(EXPLAIN SELECT ...)` in a subquery. Queries like `SELECT * FROM (EXPLAIN PIPELINE SELECT col FROM TABLE ORDER BY col)` became valid. [#40630](https://github.com/ClickHouse/ClickHouse/pull/40630) ([Vladimir C](https://github.com/vdimir)).
* Currently changing `async_insert_max_data_size` or `async_insert_busy_timeout_ms` in scope of query makes no sense and this leads to bad user experience. E.g. user wants to insert data rarely and he doesn't have an access to server config to tune default settings. [#40668](https://github.com/ClickHouse/ClickHouse/pull/40668) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Embedded Keeper will always start in the background allowing ClickHouse to start without achieving quorum. [#40991](https://github.com/ClickHouse/ClickHouse/pull/40991) ([Antonio Andelic](https://github.com/antonio2368)).
* Improvements for reading from remote filesystems, made threadpool size for reads/writes configurable. Closes [#41070](https://github.com/ClickHouse/ClickHouse/issues/41070). [#41011](https://github.com/ClickHouse/ClickHouse/pull/41011) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Made reestablishing a new connection more reactive in case of expiration of the previous one. Previously there was a task which spawns every minute by default and thus a table could be in readonly state for about this time. [#41092](https://github.com/ClickHouse/ClickHouse/pull/41092) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Support all combinators combination in WindowTransform/arratReduce*/initializeAggregation/aggregate functions versioning. Previously combinators like `ForEach/Resample/Map` didn't work in these places, using them led to exception like`State function ... inserts results into non-state column`. [#41107](https://github.com/ClickHouse/ClickHouse/pull/41107) ([Kruglov Pavel](https://github.com/Avogar)).
* Now projections can be used with zero copy replication. [#41147](https://github.com/ClickHouse/ClickHouse/pull/41147) ([alesapin](https://github.com/alesapin)).
* - Add function tryDecrypt that returns NULL when decrypt fail (e.g. decrypt with incorrect key) instead of throwing exception. [#41206](https://github.com/ClickHouse/ClickHouse/pull/41206) ([Duc Canh Le](https://github.com/canhld94)).
* Add the `unreserved_space` column to the `system.disks` table to check how much space is not taken by reservations per disk. [#41254](https://github.com/ClickHouse/ClickHouse/pull/41254) ([filimonov](https://github.com/filimonov)).
* Support s3 authorisation headers from ast arguments. [#41261](https://github.com/ClickHouse/ClickHouse/pull/41261) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Add setting 'allow_implicit_no_password' that forbids creating a user with no password unless 'IDENTIFIED WITH no_password' is explicitly specified. [#41341](https://github.com/ClickHouse/ClickHouse/pull/41341) ([Nikolay Degterinsky](https://github.com/evillique)).
* keeper-improvement: add support for uploading snapshots to S3. S3 information can be defined inside `keeper_server.s3_snapshot`. [#41342](https://github.com/ClickHouse/ClickHouse/pull/41342) ([Antonio Andelic](https://github.com/antonio2368)).
* Add support for MultiRead in Keeper and internal ZooKeeper client. [#41410](https://github.com/ClickHouse/ClickHouse/pull/41410) ([Antonio Andelic](https://github.com/antonio2368)).
* add a support for decimal type comparing with floating point literal in IN operator. [#41544](https://github.com/ClickHouse/ClickHouse/pull/41544) ([liang.huang](https://github.com/lhuang09287750)).
* Allow readable size values in cache config. [#41688](https://github.com/ClickHouse/ClickHouse/pull/41688) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Check file path for path traversal attacks in errors logger for input formats. [#41694](https://github.com/ClickHouse/ClickHouse/pull/41694) ([Kruglov Pavel](https://github.com/Avogar)).
* ClickHouse could cache stale DNS entries for some period of time (15 seconds by default) until the cache won't be updated asynchronously. During these period ClickHouse can nevertheless try to establish a connection and produce errors. This behaviour is fixed. [#41707](https://github.com/ClickHouse/ClickHouse/pull/41707) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Add interactive history search with fzf-like utility (fzf/sk) for `clickhouse-client`/`clickhouse-local` (note you can use `FZF_DEFAULT_OPTS`/`SKIM_DEFAULT_OPTIONS` to additionally configure the behavior). [#41730](https://github.com/ClickHouse/ClickHouse/pull/41730) ([Azat Khuzhin](https://github.com/azat)).
* For client when connecting to a secure server with invalid certificate only allow to proceed with '--accept-certificate' flag. [#41743](https://github.com/ClickHouse/ClickHouse/pull/41743) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
* Add function "tryBase58Decode()", similar to the existing function "tryBase64Decode()". [#41824](https://github.com/ClickHouse/ClickHouse/pull/41824) ([Robert Schulze](https://github.com/rschu1ze)).
* Improve feedback when replacing partition with different primary key. Fixes [#34798](https://github.com/ClickHouse/ClickHouse/issues/34798). [#41838](https://github.com/ClickHouse/ClickHouse/pull/41838) ([Salvatore](https://github.com/tbsal)).
* Replace back `clickhouse su` command with `sudo -u` in start in order to respect limits in `/etc/security/limits.conf`. [#41847](https://github.com/ClickHouse/ClickHouse/pull/41847) ([Eugene Konkov](https://github.com/ekonkov)).
* Fix parallel parsing: segmentator now checks max_block_size. [#41852](https://github.com/ClickHouse/ClickHouse/pull/41852) ([Vitaly Baranov](https://github.com/vitlibar)).
* Don't report TABLE_IS_DROPPED exception in order to skip table in case is was just dropped. [#41908](https://github.com/ClickHouse/ClickHouse/pull/41908) ([AlfVII](https://github.com/AlfVII)).
* Improve option enable_extended_results_for_datetime_functions to return results of type DateTime64 for functions toStartOfDay, toStartOfHour, toStartOfFifteenMinutes, toStartOfTenMinutes, toStartOfFiveMinutes, toStartOfMinute and timeSlot. [#41910](https://github.com/ClickHouse/ClickHouse/pull/41910) ([Roman Vasin](https://github.com/rvasin)).
* Improve DateTime type inference for text formats. Now it respect setting `date_time_input_format` and doesn't try to infer datetimes from numbers as timestamps. Closes [#41389](https://github.com/ClickHouse/ClickHouse/issues/41389) Closes [#42206](https://github.com/ClickHouse/ClickHouse/issues/42206). [#41912](https://github.com/ClickHouse/ClickHouse/pull/41912) ([Kruglov Pavel](https://github.com/Avogar)).
* Remove confusing warning when inserting with `perform_ttl_move_on_insert`=false. [#41980](https://github.com/ClickHouse/ClickHouse/pull/41980) ([Vitaly Baranov](https://github.com/vitlibar)).
* Allow user to write `countState(*)` similar to `count(*)`. This closes [#9338](https://github.com/ClickHouse/ClickHouse/issues/9338). [#41983](https://github.com/ClickHouse/ClickHouse/pull/41983) ([Amos Bird](https://github.com/amosbird)).
* - Fix rankCorr size overflow. [#42020](https://github.com/ClickHouse/ClickHouse/pull/42020) ([Duc Canh Le](https://github.com/canhld94)).
* Added an option to specify an arbitrary string as an environment name in the Sentry's config for more handy reports. [#42037](https://github.com/ClickHouse/ClickHouse/pull/42037) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Added system table `asynchronous_insert_log `. It contains information about asynchronous inserts (including results of queries in fire-and-forget mode (with `wait_for_async_insert=0`)) for better introspection. [#42040](https://github.com/ClickHouse/ClickHouse/pull/42040) ([Anton Popov](https://github.com/CurtizJ)).
* Fix parsing out-of-range Date from CSV:. [#42044](https://github.com/ClickHouse/ClickHouse/pull/42044) ([Andrey Zvonov](https://github.com/zvonand)).
* parseDataTimeBestEffort support comma between date and time. Closes [#42038](https://github.com/ClickHouse/ClickHouse/issues/42038). [#42049](https://github.com/ClickHouse/ClickHouse/pull/42049) ([flynn](https://github.com/ucasfl)).
* Add support for methods lz4, bz2, snappy in 'Accept-Encoding'. [#42071](https://github.com/ClickHouse/ClickHouse/pull/42071) ([Nikolay Degterinsky](https://github.com/evillique)).
* Various minor fixes for BLAKE3 function. [#42073](https://github.com/ClickHouse/ClickHouse/pull/42073) ([BoloniniD](https://github.com/BoloniniD)).
* Improved stale replica recovery process for `ReplicatedMergeTree`. If lost replica have some parts which absent on a healthy replica, but these parts should appear in future according to replication queue of the healthy replica, then lost replica will keep such parts instead of detaching them. [#42134](https://github.com/ClickHouse/ClickHouse/pull/42134) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Support BACKUP to S3 with as-is path/data structure. [#42232](https://github.com/ClickHouse/ClickHouse/pull/42232) ([Azat Khuzhin](https://github.com/azat)).
* Add a possibility to use Date32 arguments for date_diff function. Fix issue in date_diff function when using DateTime64 arguments with start date before Unix epoch and end date after Unix epoch. [#42308](https://github.com/ClickHouse/ClickHouse/pull/42308) ([Roman Vasin](https://github.com/rvasin)).
* When uploading big parts to minio, 'Complete Multipart Upload' can take a long time. Minio sends heartbeats every 10 seconds (see https://github.com/minio/minio/pull/7198). But clickhouse times out earlier, because the default send/receive timeout is [set](https://github.com/ClickHouse/ClickHouse/blob/cc24fcd6d5dfb67f5f66f5483e986bd1010ad9cf/src/IO/S3/PocoHTTPClient.cpp#L123) to 5 seconds. [#42321](https://github.com/ClickHouse/ClickHouse/pull/42321) ([filimonov](https://github.com/filimonov)).
* Add `S3` as a new type of the destination of backups. [#42333](https://github.com/ClickHouse/ClickHouse/pull/42333) ([Vitaly Baranov](https://github.com/vitlibar)).
* Fix rarely invalid cast of aggregate state types with complex types such as Decimal. This fixes [#42408](https://github.com/ClickHouse/ClickHouse/issues/42408). [#42417](https://github.com/ClickHouse/ClickHouse/pull/42417) ([Amos Bird](https://github.com/amosbird)).
* Support skipping cache completely (both download to cache and reading cached data) in case the requested read range exceeds the threshold defined by cache setting `bypass_cache_threashold`, requires to be enabled with `enable_bypass_cache_with_threshold`). [#42418](https://github.com/ClickHouse/ClickHouse/pull/42418) ([Han Shukai](https://github.com/KinderRiven)).
* Merge parts if every part in the range is older than a certain threshold. The threshold can be set by using `min_age_to_force_merge_seconds`. This closes [#35836](https://github.com/ClickHouse/ClickHouse/issues/35836). [#42423](https://github.com/ClickHouse/ClickHouse/pull/42423) ([Antonio Andelic](https://github.com/antonio2368)).
* Enabled CompiledExpressionCache in clickhouse-local. [#42477](https://github.com/ClickHouse/ClickHouse/pull/42477) ([AlfVII](https://github.com/AlfVII)).
* Remove support for the `{database}` macro from the client's prompt. It was displayed incorrectly if the database was unspecified and it was not updated on `USE` statements. This closes [#25891](https://github.com/ClickHouse/ClickHouse/issues/25891). [#42508](https://github.com/ClickHouse/ClickHouse/pull/42508) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* - Improve the time to recover lost keeper connections. [#42541](https://github.com/ClickHouse/ClickHouse/pull/42541) ([Raúl Marín](https://github.com/Algunenano)).
* Allow to use Date32 arguments for dateName function. [#42554](https://github.com/ClickHouse/ClickHouse/pull/42554) ([Roman Vasin](https://github.com/rvasin)).
#### Bug Fix
* Now filters with NULL literals will be used during index analysis. This closes https://github.com/ClickHouse/ClickHouse/pull/41814 [#34063](https://github.com/ClickHouse/ClickHouse/issues/34063). [#41842](https://github.com/ClickHouse/ClickHouse/pull/41842) ([Amos Bird](https://github.com/amosbird)).
* - Choose correct aggregation method for LowCardinality with BigInt. [#42342](https://github.com/ClickHouse/ClickHouse/pull/42342) ([Duc Canh Le](https://github.com/canhld94)).
* Fix using subqueries in row policy filters. This PR fixes [#32463](https://github.com/ClickHouse/ClickHouse/issues/32463). [#42562](https://github.com/ClickHouse/ClickHouse/pull/42562) ([Vitaly Baranov](https://github.com/vitlibar)).
#### Build/Testing/Packaging Improvement
* Added support of WHERE clause generation to AST Fuzzer and possibility to add or remove ORDER BY and WHERE clause. [#38519](https://github.com/ClickHouse/ClickHouse/pull/38519) ([Ilya Yatsishin](https://github.com/qoega)).
* Aarch64 binaries now require at least ARMv8.2, released in 2016. Most notably, this enables use of ARM LSE, i.e. native atomic operations. Also, CMake build option "NO_ARMV81_OR_HIGHER" has been added to allow compilation of binaries for older ARMv8.0 hardware, e.g. Raspberry Pi 4. [#41610](https://github.com/ClickHouse/ClickHouse/pull/41610) ([Robert Schulze](https://github.com/rschu1ze)).
* After updating runners to 22.04 cgroups stopped to work in privileged mode, here's the issue https://github.com/moby/moby/issues/42275#issuecomment-1115055846. [#41857](https://github.com/ClickHouse/ClickHouse/pull/41857) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Allow building ClickHouse with Musl (small changes after it was already supported but broken). [#41987](https://github.com/ClickHouse/ClickHouse/pull/41987) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* - Add the `$CLICKHOUSE_CRONFILE` file checking to avoid running the `sed` command to get the file not found error. [#42081](https://github.com/ClickHouse/ClickHouse/pull/42081) ([Chun-Sheng, Li](https://github.com/peter279k)).
* Update cctz to the latest master, update tzdb to 2020e. [#42273](https://github.com/ClickHouse/ClickHouse/pull/42273) ([Dom Del Nano](https://github.com/ddelnano)).
* Update tzdata to 2022e to support the new timezone changes. Palestine transitions are now Saturdays at 02:00. Simplify three Ukraine zones into one. Jordan and Syria switch from +02/+03 with DST to year-round +03. (https://data.iana.org/time-zones/tzdb/NEWS). This closes [#42252](https://github.com/ClickHouse/ClickHouse/issues/42252). [#42327](https://github.com/ClickHouse/ClickHouse/pull/42327) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Fix power8 support. [#42462](https://github.com/ClickHouse/ClickHouse/pull/42462) ([Boris Kuschel](https://github.com/bkuschel)).
#### Bug Fix (user-visible misbehavior in official stable or prestable release)
* Several fixes for DiskWeb. [#41652](https://github.com/ClickHouse/ClickHouse/pull/41652) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fixes issue when docker run will fail if "https_port" is not present in config. [#41693](https://github.com/ClickHouse/ClickHouse/pull/41693) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
* Mutations were not cancelled properly on server shutdown or `SYSTEM STOP MERGES` query and cancellation might take long time, it's fixed. [#41699](https://github.com/ClickHouse/ClickHouse/pull/41699) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Fix wrong result of queries with `ORDER BY` or `GROUP BY` by columns from prefix of sorting key, wrapped into monotonic functions, with enable "read in order" optimization (settings `optimize_read_in_order` and `optimize_aggregation_in_order`). [#41701](https://github.com/ClickHouse/ClickHouse/pull/41701) ([Anton Popov](https://github.com/CurtizJ)).
* Fix possible crash in `SELECT` from `Merge` table with enabled `optimize_monotonous_functions_in_order_by` setting. Fixes [#41269](https://github.com/ClickHouse/ClickHouse/issues/41269). [#41740](https://github.com/ClickHouse/ClickHouse/pull/41740) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Fixed "Part ... intersects part ..." error that might happen in extremely rare cases if replica was restarted just after detaching some part as broken. [#41741](https://github.com/ClickHouse/ClickHouse/pull/41741) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Don't allow to create or alter merge tree tables with virtual column name _row_exists, which is reserved for lightweight delete. Fixed [#41716](https://github.com/ClickHouse/ClickHouse/issues/41716). [#41763](https://github.com/ClickHouse/ClickHouse/pull/41763) ([Jianmei Zhang](https://github.com/zhangjmruc)).
* Fix a bug that CORS headers are missing in some HTTP responses. [#41792](https://github.com/ClickHouse/ClickHouse/pull/41792) ([Frank Chen](https://github.com/FrankChen021)).
* 22.9 might fail to startup `ReplicatedMergeTree` table if that table was created by 20.3 or older version and was never altered, it's fixed. Fixes [#41742](https://github.com/ClickHouse/ClickHouse/issues/41742). [#41796](https://github.com/ClickHouse/ClickHouse/pull/41796) ([Alexander Tokmakov](https://github.com/tavplubix)).
* When the batch sending fails for some reason, it cannot be automatically recovered, and if it is not processed in time, it will lead to accumulation, and the printed error message will become longer and longer, which will cause the http thread to block. [#41813](https://github.com/ClickHouse/ClickHouse/pull/41813) ([zhongyuankai](https://github.com/zhongyuankai)).
* Fix compact parts with compressed marks setting. Fixes [#41783](https://github.com/ClickHouse/ClickHouse/issues/41783) and [#41746](https://github.com/ClickHouse/ClickHouse/issues/41746). [#41823](https://github.com/ClickHouse/ClickHouse/pull/41823) ([alesapin](https://github.com/alesapin)).
* Old versions of Replicated database doesn't have a special marker in [Zoo]Keeper. We need to check only whether the node contains come obscure data instead of special mark. [#41875](https://github.com/ClickHouse/ClickHouse/pull/41875) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Fix possible exception in fs cache. [#41884](https://github.com/ClickHouse/ClickHouse/pull/41884) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fix use_environment_credentials for s3 table function. [#41970](https://github.com/ClickHouse/ClickHouse/pull/41970) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fixed "Directory already exists and is not empty" error on detaching broken part that might prevent `ReplicatedMergeTree` table from starting replication. Fixes [#40957](https://github.com/ClickHouse/ClickHouse/issues/40957). [#41981](https://github.com/ClickHouse/ClickHouse/pull/41981) ([Alexander Tokmakov](https://github.com/tavplubix)).
* toDateTime64() now returns the same output with negative integer and float arguments. [#42025](https://github.com/ClickHouse/ClickHouse/pull/42025) ([Robert Schulze](https://github.com/rschu1ze)).
* Fix write into AzureBlobStorage. Partially closes [#41754](https://github.com/ClickHouse/ClickHouse/issues/41754). [#42034](https://github.com/ClickHouse/ClickHouse/pull/42034) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fix the bzip2 decoding issue for specific bzip2 files. [#42046](https://github.com/ClickHouse/ClickHouse/pull/42046) ([Nikolay Degterinsky](https://github.com/evillique)).
* - Fix SQL function "toLastDayOfMonth()" with setting "enable_extended_results_for_datetime_functions = 1" at the beginning of the extended range (January 1900). - Fix SQL function "toRelativeWeekNum()" with setting "enable_extended_results_for_datetime_functions = 1" at the end of extended range (December 2299). - Improve the performance of for SQL functions "toISOYear()", "toFirstDayNumOfISOYearIndex()" and "toYearWeekOfNewyearMode()" by avoiding unnecessary index arithmetics. [#42084](https://github.com/ClickHouse/ClickHouse/pull/42084) ([Roman Vasin](https://github.com/rvasin)).
* The maximum size of fetches for each table accidentally was set to 8 while the pool size could be bigger. Now the maximum size of fetches for table is equal to the pool size. [#42090](https://github.com/ClickHouse/ClickHouse/pull/42090) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* A table might be shut down and a dictionary might be detached before checking if can be dropped without breaking dependencies between table, it's fixed. Fixes [#41982](https://github.com/ClickHouse/ClickHouse/issues/41982). [#42106](https://github.com/ClickHouse/ClickHouse/pull/42106) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Fix bad inefficiency of `remote_filesystem_read_method=read` with filesystem cache. Closes [#42125](https://github.com/ClickHouse/ClickHouse/issues/42125). [#42129](https://github.com/ClickHouse/ClickHouse/pull/42129) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fix possible timeout exception for distributed queries with use_hedged_requests=0. [#42130](https://github.com/ClickHouse/ClickHouse/pull/42130) ([Azat Khuzhin](https://github.com/azat)).
* Fixed a minor bug inside function `runningDifference` in case of using it with `Date32` type. Previously `Date` was used and it may cause some logical errors like `Bad cast from type DB::ColumnVector<int> to DB::ColumnVector<unsigned short>'`. [#42143](https://github.com/ClickHouse/ClickHouse/pull/42143) ([Alfred Xu](https://github.com/sperlingxx)).
* Fix reusing of files > 4GB from base backup. [#42146](https://github.com/ClickHouse/ClickHouse/pull/42146) ([Azat Khuzhin](https://github.com/azat)).
* DISTINCT in order fails with LOGICAL_ERROR if first column in sorting key contains function. [#42186](https://github.com/ClickHouse/ClickHouse/pull/42186) ([Igor Nikonov](https://github.com/devcrafter)).
* Fix a bug with projections and the `aggregate_functions_null_for_empty` setting. This bug is very rare and appears only if you enable the `aggregate_functions_null_for_empty` setting in the server's config. This closes [#41647](https://github.com/ClickHouse/ClickHouse/issues/41647). [#42198](https://github.com/ClickHouse/ClickHouse/pull/42198) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* - Fix read from buffer with read in order desc. [#42236](https://github.com/ClickHouse/ClickHouse/pull/42236) ([Duc Canh Le](https://github.com/canhld94)).
* Fix a bug which prevents ClickHouse to start when background_pool_size setting is set on default profile but background_merges_mutations_concurrency_ratio is not. [#42315](https://github.com/ClickHouse/ClickHouse/pull/42315) ([nvartolomei](https://github.com/nvartolomei)).
* `ALTER UPDATE` of attached part (with columns different from table schema) could create an invalid `columns.txt` metadata on disk. Reading from such part could fail with errors or return invalid data. Fixes [#42161](https://github.com/ClickHouse/ClickHouse/issues/42161). [#42319](https://github.com/ClickHouse/ClickHouse/pull/42319) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Setting `additional_table_filters` were not applied to `Distributed` storage. Fixes [#41692](https://github.com/ClickHouse/ClickHouse/issues/41692). [#42322](https://github.com/ClickHouse/ClickHouse/pull/42322) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Fix a data race in query finish/cancel. This closes [#42346](https://github.com/ClickHouse/ClickHouse/issues/42346). [#42362](https://github.com/ClickHouse/ClickHouse/pull/42362) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* This reverts [#40217](https://github.com/ClickHouse/ClickHouse/issues/40217) which introduced a regression in date/time functions. [#42367](https://github.com/ClickHouse/ClickHouse/pull/42367) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Fix assert cast in join on falsy condition, Close [#42380](https://github.com/ClickHouse/ClickHouse/issues/42380). [#42407](https://github.com/ClickHouse/ClickHouse/pull/42407) ([Vladimir C](https://github.com/vdimir)).
* Fix buffer overflow in the processing of Decimal data types. This closes [#42451](https://github.com/ClickHouse/ClickHouse/issues/42451). [#42465](https://github.com/ClickHouse/ClickHouse/pull/42465) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* `AggregateFunctionQuantile` now correctly works with UInt128 columns. Previously, the quantile state interpreted `UInt128` columns as `Int128` which could have led to incorrect results. [#42473](https://github.com/ClickHouse/ClickHouse/pull/42473) ([Antonio Andelic](https://github.com/antonio2368)).
* Fix bad_assert during INSERT into Annoy indexes over non-Float32 columns. [#42485](https://github.com/ClickHouse/ClickHouse/pull/42485) ([Robert Schulze](https://github.com/rschu1ze)).
* This closes [#42453](https://github.com/ClickHouse/ClickHouse/issues/42453). [#42573](https://github.com/ClickHouse/ClickHouse/pull/42573) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Fix function `arrayElement` with type `Map` with `Nullable` values and `Nullable` index. [#42623](https://github.com/ClickHouse/ClickHouse/pull/42623) ([Anton Popov](https://github.com/CurtizJ)).
#### Bug Fix (user-visible misbehaviour in official stable or prestable release)
* Fix unexpected table loading error when partition key contains alias function names during server upgrade. [#36379](https://github.com/ClickHouse/ClickHouse/pull/36379) ([Amos Bird](https://github.com/amosbird)).
#### Build Improvement
* Fixed SipHash Endian issue for s390x platform. [#41372](https://github.com/ClickHouse/ClickHouse/pull/41372) ([Harry Lee](https://github.com/HarryLeeIBM)).
* Enable lib base64 for ppc64le platform. [#41974](https://github.com/ClickHouse/ClickHouse/pull/41974) ([Suzy Wang](https://github.com/SuzyWangIBMer)).
* Fixed Endian issue in T64 compression codec on s390x. [#42314](https://github.com/ClickHouse/ClickHouse/pull/42314) ([Harry Lee](https://github.com/HarryLeeIBM)).
#### NO CL ENTRY
* NO CL ENTRY: 'Revert "Disable parallel s3 multipart upload for part moves."'. [#41681](https://github.com/ClickHouse/ClickHouse/pull/41681) ([Alexander Tokmakov](https://github.com/tavplubix)).
* NO CL ENTRY: 'Revert "Attempt to fix abort from parallel parsing"'. [#42545](https://github.com/ClickHouse/ClickHouse/pull/42545) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* NO CL ENTRY: 'Revert "Low cardinality cases moved to the function for its corresponding type"'. [#42633](https://github.com/ClickHouse/ClickHouse/pull/42633) ([Anton Popov](https://github.com/CurtizJ)).
#### NOT FOR CHANGELOG / INSIGNIFICANT
* Test for ignore function in PARTITION KEY [#39875](https://github.com/ClickHouse/ClickHouse/pull/39875) ([UnamedRus](https://github.com/UnamedRus)).
* Add fuzzer for table definitions [#40096](https://github.com/ClickHouse/ClickHouse/pull/40096) ([Anton Popov](https://github.com/CurtizJ)).
* Add missing tests for legacy geobase [#40684](https://github.com/ClickHouse/ClickHouse/pull/40684) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Remove obsolete comment from the config.xml [#41518](https://github.com/ClickHouse/ClickHouse/pull/41518) ([filimonov](https://github.com/filimonov)).
* Resurrect parallel distributed insert select with s3Cluster [#41535](https://github.com/ClickHouse/ClickHouse/pull/41535) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Update runners to a recent version to install on 22.04 [#41556](https://github.com/ClickHouse/ClickHouse/pull/41556) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Refactor wiping sensitive information from logs. [#41562](https://github.com/ClickHouse/ClickHouse/pull/41562) ([Vitaly Baranov](https://github.com/vitlibar)).
* Better S3 logs [#41587](https://github.com/ClickHouse/ClickHouse/pull/41587) ([Nikolay Degterinsky](https://github.com/evillique)).
* Fix typos in JSON formats after [#40910](https://github.com/ClickHouse/ClickHouse/issues/40910) [#41614](https://github.com/ClickHouse/ClickHouse/pull/41614) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix drop for KeeperMap [#41616](https://github.com/ClickHouse/ClickHouse/pull/41616) ([Antonio Andelic](https://github.com/antonio2368)).
* increase default max_suspicious_broken_parts to 100 [#41619](https://github.com/ClickHouse/ClickHouse/pull/41619) ([Denny Crane](https://github.com/den-crane)).
* Release AWS SDK log level + replace one exception [#41649](https://github.com/ClickHouse/ClickHouse/pull/41649) ([alesapin](https://github.com/alesapin)).
* Fix a destruction order for views ThreadStatus [#41650](https://github.com/ClickHouse/ClickHouse/pull/41650) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Add very explicit logging on disk choice for fetch [#41653](https://github.com/ClickHouse/ClickHouse/pull/41653) ([alesapin](https://github.com/alesapin)).
* Fix race between ~BackgroundSchedulePool and ~DNSCacheUpdater [#41654](https://github.com/ClickHouse/ClickHouse/pull/41654) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Add changelog for 22.9 [#41668](https://github.com/ClickHouse/ClickHouse/pull/41668) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Update version after release [#41670](https://github.com/ClickHouse/ClickHouse/pull/41670) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Fix error message [#41680](https://github.com/ClickHouse/ClickHouse/pull/41680) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Add test for setting output_format_json_validate_utf8 [#41691](https://github.com/ClickHouse/ClickHouse/pull/41691) ([Kruglov Pavel](https://github.com/Avogar)).
* Resolve findings from clang-tidy [#41702](https://github.com/ClickHouse/ClickHouse/pull/41702) ([ltrk2](https://github.com/ltrk2)).
* Ignore Keeper errors from ReplicatedMergeTreeAttachThread in stress tests [#41717](https://github.com/ClickHouse/ClickHouse/pull/41717) ([Antonio Andelic](https://github.com/antonio2368)).
* Collect logs in Stress test using clickhouse-local [#41721](https://github.com/ClickHouse/ClickHouse/pull/41721) ([Antonio Andelic](https://github.com/antonio2368)).
* Disable flaky `test_merge_tree_azure_blob_storage` [#41722](https://github.com/ClickHouse/ClickHouse/pull/41722) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Update version_date.tsv and changelogs after v22.9.2.7-stable [#41724](https://github.com/ClickHouse/ClickHouse/pull/41724) ([robot-clickhouse](https://github.com/robot-clickhouse)).
* Fix part removal retries [#41728](https://github.com/ClickHouse/ClickHouse/pull/41728) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Try fix azure tests [#41731](https://github.com/ClickHouse/ClickHouse/pull/41731) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fix test build [#41732](https://github.com/ClickHouse/ClickHouse/pull/41732) ([Robert Schulze](https://github.com/rschu1ze)).
* Change logging levels in cache [#41733](https://github.com/ClickHouse/ClickHouse/pull/41733) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Revert of "Revert the revert of "ColumnVector: optimize filter with AVX512 VBMI2 compress store" [#40033](https://github.com/ClickHouse/ClickHouse/issues/40033)" [#41752](https://github.com/ClickHouse/ClickHouse/pull/41752) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Fix SET query parameters formatting [#41755](https://github.com/ClickHouse/ClickHouse/pull/41755) ([Nikolay Degterinsky](https://github.com/evillique)).
* Support to run testcases on macOS [#41760](https://github.com/ClickHouse/ClickHouse/pull/41760) ([Frank Chen](https://github.com/FrankChen021)).
* Bump LLVM from 12 to 13 [#41762](https://github.com/ClickHouse/ClickHouse/pull/41762) ([Robert Schulze](https://github.com/rschu1ze)).
* ColumnVector: re-enable AVX512_VBMI/AVX512_VBMI2 optimized filter and index [#41765](https://github.com/ClickHouse/ClickHouse/pull/41765) ([Guo Wangyang](https://github.com/guowangy)).
* Update 02354_annoy.sql [#41767](https://github.com/ClickHouse/ClickHouse/pull/41767) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Fix the typo preventing building latest images [#41769](https://github.com/ClickHouse/ClickHouse/pull/41769) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Make automatic download script choose between ARMv8.0 or ARMv8.2 builds [#41775](https://github.com/ClickHouse/ClickHouse/pull/41775) ([Robert Schulze](https://github.com/rschu1ze)).
* Fix tests for docker-ci [#41777](https://github.com/ClickHouse/ClickHouse/pull/41777) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Possible fix for KeeperMap drop [#41784](https://github.com/ClickHouse/ClickHouse/pull/41784) ([Antonio Andelic](https://github.com/antonio2368)).
* Fix drop of completely dropped table [#41789](https://github.com/ClickHouse/ClickHouse/pull/41789) ([alesapin](https://github.com/alesapin)).
* Log git hash during startup [#41790](https://github.com/ClickHouse/ClickHouse/pull/41790) ([Robert Schulze](https://github.com/rschu1ze)).
* Revert "ColumnVector: optimize UInt8 index with AVX512VBMI ([#41247](https://github.com/ClickHouse/ClickHouse/issues/41247))" [#41797](https://github.com/ClickHouse/ClickHouse/pull/41797) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Small fix in dashboard [#41798](https://github.com/ClickHouse/ClickHouse/pull/41798) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Keep the most important log in stress tests [#41821](https://github.com/ClickHouse/ClickHouse/pull/41821) ([alesapin](https://github.com/alesapin)).
* Use copy for some operations instead of hardlinks [#41832](https://github.com/ClickHouse/ClickHouse/pull/41832) ([alesapin](https://github.com/alesapin)).
* Remove unused variable in registerStorageMergeTree.cpp [#41839](https://github.com/ClickHouse/ClickHouse/pull/41839) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fix Jepsen [#41845](https://github.com/ClickHouse/ClickHouse/pull/41845) ([Antonio Andelic](https://github.com/antonio2368)).
* Increase `request_timeout_ms` for s3 tests in CI [#41853](https://github.com/ClickHouse/ClickHouse/pull/41853) ([Kseniia Sumarokova](https://github.com/kssenii)).
* tests: fix debug symbols (and possible crashes) for backward compatiblity check [#41854](https://github.com/ClickHouse/ClickHouse/pull/41854) ([Azat Khuzhin](https://github.com/azat)).
* Remove two redundant lines [#41856](https://github.com/ClickHouse/ClickHouse/pull/41856) ([alesapin](https://github.com/alesapin)).
* Infer Object type only when allow_experimental_object_type is enabled [#41858](https://github.com/ClickHouse/ClickHouse/pull/41858) ([Kruglov Pavel](https://github.com/Avogar)).
* Add default UNION/EXCEPT/INTERSECT to the echo query text [#41862](https://github.com/ClickHouse/ClickHouse/pull/41862) ([Nikolay Degterinsky](https://github.com/evillique)).
* Consolidate CMake-generated config headers [#41873](https://github.com/ClickHouse/ClickHouse/pull/41873) ([Robert Schulze](https://github.com/rschu1ze)).
* Fix 02267_file_globs_schema_inference.sql flakiness [#41877](https://github.com/ClickHouse/ClickHouse/pull/41877) ([Kruglov Pavel](https://github.com/Avogar)).
* Docs: Remove obsolete modelEvaluate() mention [#41878](https://github.com/ClickHouse/ClickHouse/pull/41878) ([Robert Schulze](https://github.com/rschu1ze)).
* Better exception message for duplicate column names in schema inference [#41885](https://github.com/ClickHouse/ClickHouse/pull/41885) ([Kruglov Pavel](https://github.com/Avogar)).
* Docs: Reference external papers as DOIs [#41886](https://github.com/ClickHouse/ClickHouse/pull/41886) ([Robert Schulze](https://github.com/rschu1ze)).
* Make LDAPR a prerequisite for downloading the ARMv8.2 build [#41897](https://github.com/ClickHouse/ClickHouse/pull/41897) ([Robert Schulze](https://github.com/rschu1ze)).
* Another sync replicas in test_recovery_replica [#41898](https://github.com/ClickHouse/ClickHouse/pull/41898) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
* remove unused code [#41921](https://github.com/ClickHouse/ClickHouse/pull/41921) ([flynn](https://github.com/ucasfl)).
* Move all queries for MV creation to the end of queue during recovering [#41932](https://github.com/ClickHouse/ClickHouse/pull/41932) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Fix broken test_disks_app_func [#41933](https://github.com/ClickHouse/ClickHouse/pull/41933) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Temporarily disable ThreadFuzzer with TSan [#41943](https://github.com/ClickHouse/ClickHouse/pull/41943) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Enable some disabled S3 tests [#41945](https://github.com/ClickHouse/ClickHouse/pull/41945) ([alesapin](https://github.com/alesapin)).
* QOL log improvements [#41947](https://github.com/ClickHouse/ClickHouse/pull/41947) ([Raúl Marín](https://github.com/Algunenano)).
* Fix non-deterministic test results [#41948](https://github.com/ClickHouse/ClickHouse/pull/41948) ([Robert Schulze](https://github.com/rschu1ze)).
* Earlier throw exception in PullingAsyncPipelineExecutor. [#41949](https://github.com/ClickHouse/ClickHouse/pull/41949) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Fix linker error [#41950](https://github.com/ClickHouse/ClickHouse/pull/41950) ([ltrk2](https://github.com/ltrk2)).
* Bump LLVM from 13 to 14 [#41951](https://github.com/ClickHouse/ClickHouse/pull/41951) ([Robert Schulze](https://github.com/rschu1ze)).
* Update version_date.tsv and changelogs after v22.3.13.80-lts [#41953](https://github.com/ClickHouse/ClickHouse/pull/41953) ([robot-clickhouse](https://github.com/robot-clickhouse)).
* Update version_date.tsv and changelogs after v22.7.6.74-stable [#41954](https://github.com/ClickHouse/ClickHouse/pull/41954) ([robot-clickhouse](https://github.com/robot-clickhouse)).
* Update version_date.tsv and changelogs after v22.8.6.71-lts [#41955](https://github.com/ClickHouse/ClickHouse/pull/41955) ([robot-clickhouse](https://github.com/robot-clickhouse)).
* Update version_date.tsv and changelogs after v22.9.3.18-stable [#41956](https://github.com/ClickHouse/ClickHouse/pull/41956) ([robot-clickhouse](https://github.com/robot-clickhouse)).
* Add a warning message to release.py script, require release type [#41975](https://github.com/ClickHouse/ClickHouse/pull/41975) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Rename max_temp_data_on_disk -> max_temporary_data_on_disk [#41984](https://github.com/ClickHouse/ClickHouse/pull/41984) ([Vladimir C](https://github.com/vdimir)).
* Add more checkStackSize calls [#41991](https://github.com/ClickHouse/ClickHouse/pull/41991) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Fix test 02403_big_http_chunk_size [#41996](https://github.com/ClickHouse/ClickHouse/pull/41996) ([Vitaly Baranov](https://github.com/vitlibar)).
* More sane behavior of part number thresholds override in query level settings [#42001](https://github.com/ClickHouse/ClickHouse/pull/42001) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Remove useless code [#42004](https://github.com/ClickHouse/ClickHouse/pull/42004) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Refactoring: Uninline some error handling methods [#42010](https://github.com/ClickHouse/ClickHouse/pull/42010) ([Robert Schulze](https://github.com/rschu1ze)).
* Fix warning that ENABLE_REPLXX is unused [#42013](https://github.com/ClickHouse/ClickHouse/pull/42013) ([Robert Schulze](https://github.com/rschu1ze)).
* Drop leftovers of libexecinfo [#42014](https://github.com/ClickHouse/ClickHouse/pull/42014) ([Robert Schulze](https://github.com/rschu1ze)).
* More detailed exception message [#42022](https://github.com/ClickHouse/ClickHouse/pull/42022) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Build against an LLVM version which has clang[-extra-tools], lldb and lld removed [#42023](https://github.com/ClickHouse/ClickHouse/pull/42023) ([Robert Schulze](https://github.com/rschu1ze)).
* Add log message and lower the retry timeout in MergeTreeRestartingThread [#42026](https://github.com/ClickHouse/ClickHouse/pull/42026) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Update amqp-cpp [#42031](https://github.com/ClickHouse/ClickHouse/pull/42031) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fix No such key during table drop [#42036](https://github.com/ClickHouse/ClickHouse/pull/42036) ([alesapin](https://github.com/alesapin)).
* Temporarily disable too aggressive tests [#42050](https://github.com/ClickHouse/ClickHouse/pull/42050) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Fix style check [#42055](https://github.com/ClickHouse/ClickHouse/pull/42055) ([Anton Popov](https://github.com/CurtizJ)).
* Function name normalization fix functions header [#42063](https://github.com/ClickHouse/ClickHouse/pull/42063) ([Maksim Kita](https://github.com/kitaisreal)).
* remove unused virtual keyword [#42065](https://github.com/ClickHouse/ClickHouse/pull/42065) ([flynn](https://github.com/ucasfl)).
* Fix crash in `SummingMergeTree` with `LowCardinality` [#42066](https://github.com/ClickHouse/ClickHouse/pull/42066) ([Anton Popov](https://github.com/CurtizJ)).
* Fix drop of completely dropped table [#42067](https://github.com/ClickHouse/ClickHouse/pull/42067) ([alesapin](https://github.com/alesapin)).
* Fix assertion in bloom filter index [#42072](https://github.com/ClickHouse/ClickHouse/pull/42072) ([Anton Popov](https://github.com/CurtizJ)).
* Ignore core.autocrlf for tests references [#42076](https://github.com/ClickHouse/ClickHouse/pull/42076) ([Azat Khuzhin](https://github.com/azat)).
* Fix progress for INSERT SELECT [#42078](https://github.com/ClickHouse/ClickHouse/pull/42078) ([Azat Khuzhin](https://github.com/azat)).
* Avoid adding extra new line after using fuzzy history search [#42080](https://github.com/ClickHouse/ClickHouse/pull/42080) ([Azat Khuzhin](https://github.com/azat)).
* Add `at` to runner AMI, bump gh runner version [#42082](https://github.com/ClickHouse/ClickHouse/pull/42082) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Use send_metadata instead of send_object_metadata [#42085](https://github.com/ClickHouse/ClickHouse/pull/42085) ([Elena Torró](https://github.com/elenatorro)).
* Docs: Preparations to remove misc statements page [#42086](https://github.com/ClickHouse/ClickHouse/pull/42086) ([Robert Schulze](https://github.com/rschu1ze)).
* Followup for TemporaryDataOnDisk [#42103](https://github.com/ClickHouse/ClickHouse/pull/42103) ([Vladimir C](https://github.com/vdimir)).
* Disable 02122_join_group_by_timeout for debug [#42104](https://github.com/ClickHouse/ClickHouse/pull/42104) ([Vladimir C](https://github.com/vdimir)).
* Update version_date.tsv and changelogs after v22.6.9.11-stable [#42114](https://github.com/ClickHouse/ClickHouse/pull/42114) ([robot-clickhouse](https://github.com/robot-clickhouse)).
* JIT compilation migration to LLVM 15 [#42123](https://github.com/ClickHouse/ClickHouse/pull/42123) ([Maksim Kita](https://github.com/kitaisreal)).
* Fix build without TSA [#42128](https://github.com/ClickHouse/ClickHouse/pull/42128) ([Raúl Marín](https://github.com/Algunenano)).
* Update codespell-ignore-words.list [#42132](https://github.com/ClickHouse/ClickHouse/pull/42132) ([Dan Roscigno](https://github.com/DanRoscigno)).
* Add null pointer checks [#42135](https://github.com/ClickHouse/ClickHouse/pull/42135) ([ltrk2](https://github.com/ltrk2)).
* Revert [#27787](https://github.com/ClickHouse/ClickHouse/issues/27787) [#42136](https://github.com/ClickHouse/ClickHouse/pull/42136) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Follow up for [#42129](https://github.com/ClickHouse/ClickHouse/issues/42129) [#42144](https://github.com/ClickHouse/ClickHouse/pull/42144) ([Kseniia Sumarokova](https://github.com/kssenii)).
* Fix checking parent for old-format parts [#42147](https://github.com/ClickHouse/ClickHouse/pull/42147) ([alesapin](https://github.com/alesapin)).
* Revert "Resurrect parallel distributed insert select with s3Cluster [#42150](https://github.com/ClickHouse/ClickHouse/pull/42150) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Docs: Add "TABLE" to CHECK/DESCRIBE statements in sidebar [#42152](https://github.com/ClickHouse/ClickHouse/pull/42152) ([Robert Schulze](https://github.com/rschu1ze)).
* Add logging during merge tree startup [#42163](https://github.com/ClickHouse/ClickHouse/pull/42163) ([alesapin](https://github.com/alesapin)).
* Abort instead of `__builtin_unreachable` in debug builds [#42168](https://github.com/ClickHouse/ClickHouse/pull/42168) ([Alexander Tokmakov](https://github.com/tavplubix)).
* [RFC] Enable -Wshorten-64-to-32 [#42190](https://github.com/ClickHouse/ClickHouse/pull/42190) ([Azat Khuzhin](https://github.com/azat)).
* Fix dialect setting description [#42196](https://github.com/ClickHouse/ClickHouse/pull/42196) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
* Add a test for #658 [#42197](https://github.com/ClickHouse/ClickHouse/pull/42197) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* use alias for MergeMutateSelectedEntry share ptr [#42211](https://github.com/ClickHouse/ClickHouse/pull/42211) ([Tian Xinhui](https://github.com/xinhuitian)).
* Fix LLVM build [#42216](https://github.com/ClickHouse/ClickHouse/pull/42216) ([Raúl Marín](https://github.com/Algunenano)).
* Exclude comments from style-check defined extern [#42217](https://github.com/ClickHouse/ClickHouse/pull/42217) ([Vladimir C](https://github.com/vdimir)).
* Update safeExit.cpp [#42220](https://github.com/ClickHouse/ClickHouse/pull/42220) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Disable concurrent parts removal [#42222](https://github.com/ClickHouse/ClickHouse/pull/42222) ([alesapin](https://github.com/alesapin)).
* Fail fast on empty URL in HDFS [#42223](https://github.com/ClickHouse/ClickHouse/pull/42223) ([Ilya Yatsishin](https://github.com/qoega)).
* Add a test for [#2389](https://github.com/ClickHouse/ClickHouse/issues/2389) [#42235](https://github.com/ClickHouse/ClickHouse/pull/42235) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Use MultiRead where possible [#42243](https://github.com/ClickHouse/ClickHouse/pull/42243) ([Antonio Andelic](https://github.com/antonio2368)).
* Minor cleanups of LLVM integration [#42249](https://github.com/ClickHouse/ClickHouse/pull/42249) ([Robert Schulze](https://github.com/rschu1ze)).
* remove useless code [#42253](https://github.com/ClickHouse/ClickHouse/pull/42253) ([flynn](https://github.com/ucasfl)).
* Early return of corner cases in selectPartsToMutate function [#42254](https://github.com/ClickHouse/ClickHouse/pull/42254) ([Tian Xinhui](https://github.com/xinhuitian)).
* Refactor the implementation of user-defined functions [#42263](https://github.com/ClickHouse/ClickHouse/pull/42263) ([Vitaly Baranov](https://github.com/vitlibar)).
* assert unused value in test_replicated_merge_tree_compatibility [#42266](https://github.com/ClickHouse/ClickHouse/pull/42266) ([nvartolomei](https://github.com/nvartolomei)).
* Fix Date Interval add/minus over DataTypeDate32 [#42279](https://github.com/ClickHouse/ClickHouse/pull/42279) ([Alfred Xu](https://github.com/sperlingxx)).
* Fix log-level in `clickhouse-disks` [#42302](https://github.com/ClickHouse/ClickHouse/pull/42302) ([Nikolay Degterinsky](https://github.com/evillique)).
* Remove forgotten debug logging [#42313](https://github.com/ClickHouse/ClickHouse/pull/42313) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix another trash in zero-copy replication [#42317](https://github.com/ClickHouse/ClickHouse/pull/42317) ([alesapin](https://github.com/alesapin)).
* go update for diagnostics tool [#42325](https://github.com/ClickHouse/ClickHouse/pull/42325) ([Dale McDiarmid](https://github.com/gingerwizard)).
* Better logging for asynchronous inserts [#42345](https://github.com/ClickHouse/ClickHouse/pull/42345) ([Anton Popov](https://github.com/CurtizJ)).
* Use nfpm packager for archlinux packages [#42349](https://github.com/ClickHouse/ClickHouse/pull/42349) ([Azat Khuzhin](https://github.com/azat)).
* Bump llvm/clang to 15.0.2 [#42351](https://github.com/ClickHouse/ClickHouse/pull/42351) ([Azat Khuzhin](https://github.com/azat)).
* Make getResource() independent from the order of the sections [#42353](https://github.com/ClickHouse/ClickHouse/pull/42353) ([Azat Khuzhin](https://github.com/azat)).
* Smaller threshold for multipart upload part size increase [#42392](https://github.com/ClickHouse/ClickHouse/pull/42392) ([alesapin](https://github.com/alesapin)).
* Better error message for unsupported delimiters in custom formats [#42406](https://github.com/ClickHouse/ClickHouse/pull/42406) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Fix formatting of `ALTER FREEZE` [#42409](https://github.com/ClickHouse/ClickHouse/pull/42409) ([Anton Popov](https://github.com/CurtizJ)).
* Replace table name in ast fuzzer more often [#42413](https://github.com/ClickHouse/ClickHouse/pull/42413) ([Anton Popov](https://github.com/CurtizJ)).
* Add *-15 tools to cmake.tools for GCC build [#42430](https://github.com/ClickHouse/ClickHouse/pull/42430) ([Ilya Yatsishin](https://github.com/qoega)).
* Deactivate tasks in ReplicatedMergeTree until startup [#42441](https://github.com/ClickHouse/ClickHouse/pull/42441) ([alesapin](https://github.com/alesapin)).
* Revert "Revert [#27787](https://github.com/ClickHouse/ClickHouse/issues/27787)" [#42442](https://github.com/ClickHouse/ClickHouse/pull/42442) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Update woboq_codebrowser location [#42448](https://github.com/ClickHouse/ClickHouse/pull/42448) ([Azat Khuzhin](https://github.com/azat)).
* add mdx and jsx to list of doc files [#42454](https://github.com/ClickHouse/ClickHouse/pull/42454) ([Dan Roscigno](https://github.com/DanRoscigno)).
* Remove code browser docs [#42455](https://github.com/ClickHouse/ClickHouse/pull/42455) ([Dan Roscigno](https://github.com/DanRoscigno)).
* Better workaround for emitting .debug_aranges section [#42457](https://github.com/ClickHouse/ClickHouse/pull/42457) ([Azat Khuzhin](https://github.com/azat)).
* Fix flaky test [#42459](https://github.com/ClickHouse/ClickHouse/pull/42459) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Fix UBSan report in Julian Day functions [#42464](https://github.com/ClickHouse/ClickHouse/pull/42464) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* rename filesystem_query_cache [#42472](https://github.com/ClickHouse/ClickHouse/pull/42472) ([Han Shukai](https://github.com/KinderRiven)).
* Add convenience typedefs for Date/Date32/DateTime/DateTime64 columns [#42476](https://github.com/ClickHouse/ClickHouse/pull/42476) ([Robert Schulze](https://github.com/rschu1ze)).
* Add error "Destination table is myself" to exception list in BC check [#42479](https://github.com/ClickHouse/ClickHouse/pull/42479) ([Kruglov Pavel](https://github.com/Avogar)).
* Get current clickhouse version without sending query in BC check [#42483](https://github.com/ClickHouse/ClickHouse/pull/42483) ([Kruglov Pavel](https://github.com/Avogar)).
* Fix logical error from welchTTest [#42487](https://github.com/ClickHouse/ClickHouse/pull/42487) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Attempt to fix abort from parallel parsing [#42496](https://github.com/ClickHouse/ClickHouse/pull/42496) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Increase threshold for using physical cores for `max_threads` [#42503](https://github.com/ClickHouse/ClickHouse/pull/42503) ([Nikita Taranov](https://github.com/nickitat)).
* Add a test for [#16827](https://github.com/ClickHouse/ClickHouse/issues/16827) [#42511](https://github.com/ClickHouse/ClickHouse/pull/42511) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Add a test for [#13653](https://github.com/ClickHouse/ClickHouse/issues/13653) [#42512](https://github.com/ClickHouse/ClickHouse/pull/42512) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Fix aliases [#42514](https://github.com/ClickHouse/ClickHouse/pull/42514) ([Nikolay Degterinsky](https://github.com/evillique)).
* tests: fix 00705_drop_create_merge_tree flakiness [#42522](https://github.com/ClickHouse/ClickHouse/pull/42522) ([Azat Khuzhin](https://github.com/azat)).
* Fix sanitizer reports in integration tests [#42529](https://github.com/ClickHouse/ClickHouse/pull/42529) ([Azat Khuzhin](https://github.com/azat)).
* Fix `KeeperTCPHandler` data race [#42532](https://github.com/ClickHouse/ClickHouse/pull/42532) ([Antonio Andelic](https://github.com/antonio2368)).
* Disable `test_storage_nats`, because it's permanently broken [#42535](https://github.com/ClickHouse/ClickHouse/pull/42535) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Better logs in clickhouse-disks [#42549](https://github.com/ClickHouse/ClickHouse/pull/42549) ([Nikolay Degterinsky](https://github.com/evillique)).
* add lib_fuzzer and lib_fuzzer_no_main to llvm-project build [#42550](https://github.com/ClickHouse/ClickHouse/pull/42550) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
* Some polishing: replicated merge tree [#42560](https://github.com/ClickHouse/ClickHouse/pull/42560) ([Igor Nikonov](https://github.com/devcrafter)).
* Temporarily disable flaky `test_replicated_merge_tree_hdfs_zero_copy` [#42563](https://github.com/ClickHouse/ClickHouse/pull/42563) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Adapt internal data structures to 512-bit era [#42564](https://github.com/ClickHouse/ClickHouse/pull/42564) ([Nikita Taranov](https://github.com/nickitat)).
* Fix strange code in date monotonicity [#42574](https://github.com/ClickHouse/ClickHouse/pull/42574) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Clear thread::id when ThreadFromGlobalPool exits. [#42577](https://github.com/ClickHouse/ClickHouse/pull/42577) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* ci/stress: fix memory limits overrides for hung check [#42585](https://github.com/ClickHouse/ClickHouse/pull/42585) ([Azat Khuzhin](https://github.com/azat)).
* tests: avoid model overlap for obfuscator [#42586](https://github.com/ClickHouse/ClickHouse/pull/42586) ([Azat Khuzhin](https://github.com/azat)).
* Fix possible segfault in expression parser [#42598](https://github.com/ClickHouse/ClickHouse/pull/42598) ([Nikolay Degterinsky](https://github.com/evillique)).
* Fix incorrect trace log line on dict reload [#42609](https://github.com/ClickHouse/ClickHouse/pull/42609) ([filimonov](https://github.com/filimonov)).
* Fix flaky 02458_datediff_date32 test [#42611](https://github.com/ClickHouse/ClickHouse/pull/42611) ([Roman Vasin](https://github.com/rvasin)).
* Revert revert 41268 disable s3 parallel write for part moves to disk s3 [#42617](https://github.com/ClickHouse/ClickHouse/pull/42617) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Try to fix data race on zookeeper vs DDLWorker at server shutdown. [#42620](https://github.com/ClickHouse/ClickHouse/pull/42620) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Add a template for installation issues [#42626](https://github.com/ClickHouse/ClickHouse/pull/42626) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Fix typo in cmake code related to fuzzing [#42627](https://github.com/ClickHouse/ClickHouse/pull/42627) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)).
* Fix build [#42635](https://github.com/ClickHouse/ClickHouse/pull/42635) ([Anton Popov](https://github.com/CurtizJ)).
* Add .rgignore for test data [#42639](https://github.com/ClickHouse/ClickHouse/pull/42639) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Fix flaky 02457_datediff_via_unix_epoch test [#42655](https://github.com/ClickHouse/ClickHouse/pull/42655) ([Roman Vasin](https://github.com/rvasin)).

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---
sidebar_position: 1
sidebar_label: 2022
---
# 2022 Changelog
### ClickHouse release v22.10.2.11-stable (d2bfcaba002) FIXME as compared to v22.10.1.1877-stable (98ab5a3c189)
#### Bug Fix (user-visible misbehavior in official stable or prestable release)
* Backported in [#42750](https://github.com/ClickHouse/ClickHouse/issues/42750): A segmentation fault related to DNS & c-ares has been reported. The below error ocurred in multiple threads: ``` 2022-09-28 15:41:19.008,2022.09.28 15:41:19.008088 [ 356 ] {} <Fatal> BaseDaemon: ######################################## 2022-09-28 15:41:19.008,"2022.09.28 15:41:19.008147 [ 356 ] {} <Fatal> BaseDaemon: (version 22.8.5.29 (official build), build id: 92504ACA0B8E2267) (from thread 353) (no query) Received signal Segmentation fault (11)" 2022-09-28 15:41:19.008,2022.09.28 15:41:19.008196 [ 356 ] {} <Fatal> BaseDaemon: Address: 0xf Access: write. Address not mapped to object. 2022-09-28 15:41:19.008,2022.09.28 15:41:19.008216 [ 356 ] {} <Fatal> BaseDaemon: Stack trace: 0x188f8212 0x1626851b 0x1626a69e 0x16269b3f 0x16267eab 0x13cf8284 0x13d24afc 0x13c5217e 0x14ec2495 0x15ba440f 0x15b9d13b 0x15bb2699 0x1891ccb3 0x1891e00d 0x18ae0769 0x18ade022 0x7f76aa985609 0x7f76aa8aa133 2022-09-28 15:41:19.008,2022.09.28 15:41:19.008274 [ 356 ] {} <Fatal> BaseDaemon: 2. Poco::Net::IPAddress::family() const @ 0x188f8212 in /usr/bin/clickhouse 2022-09-28 15:41:19.008,2022.09.28 15:41:19.008297 [ 356 ] {} <Fatal> BaseDaemon: 3. ? @ 0x1626851b in /usr/bin/clickhouse 2022-09-28 15:41:19.008,2022.09.28 15:41:19.008309 [ 356 ] {} <Fatal> BaseDaemon: 4. ? @ 0x1626a69e in /usr/bin/clickhouse ```. [#42234](https://github.com/ClickHouse/ClickHouse/pull/42234) ([Arthur Passos](https://github.com/arthurpassos)).
* Backported in [#42793](https://github.com/ClickHouse/ClickHouse/issues/42793): Fix a bug in ParserFunction that could have led to a segmentation fault. [#42724](https://github.com/ClickHouse/ClickHouse/pull/42724) ([Nikolay Degterinsky](https://github.com/evillique)).
#### NOT FOR CHANGELOG / INSIGNIFICANT
* Always run `BuilderReport` and `BuilderSpecialReport` in all CI types [#42684](https://github.com/ClickHouse/ClickHouse/pull/42684) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).

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# 2022 Changelog
### ClickHouse release v22.3.14.18-lts (642946f61b2) FIXME as compared to v22.3.13.80-lts (e2708b01fba)
#### Bug Fix
* Backported in [#42432](https://github.com/ClickHouse/ClickHouse/issues/42432): - Choose correct aggregation method for LowCardinality with BigInt. [#42342](https://github.com/ClickHouse/ClickHouse/pull/42342) ([Duc Canh Le](https://github.com/canhld94)).
#### Build/Testing/Packaging Improvement
* Backported in [#42328](https://github.com/ClickHouse/ClickHouse/issues/42328): Update cctz to the latest master, update tzdb to 2020e. [#42273](https://github.com/ClickHouse/ClickHouse/pull/42273) ([Dom Del Nano](https://github.com/ddelnano)).
* Backported in [#42358](https://github.com/ClickHouse/ClickHouse/issues/42358): Update tzdata to 2022e to support the new timezone changes. Palestine transitions are now Saturdays at 02:00. Simplify three Ukraine zones into one. Jordan and Syria switch from +02/+03 with DST to year-round +03. (https://data.iana.org/time-zones/tzdb/NEWS). This closes [#42252](https://github.com/ClickHouse/ClickHouse/issues/42252). [#42327](https://github.com/ClickHouse/ClickHouse/pull/42327) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### Bug Fix (user-visible misbehavior in official stable or prestable release)
* Backported in [#42298](https://github.com/ClickHouse/ClickHouse/issues/42298): Fix a bug with projections and the `aggregate_functions_null_for_empty` setting. This bug is very rare and appears only if you enable the `aggregate_functions_null_for_empty` setting in the server's config. This closes [#41647](https://github.com/ClickHouse/ClickHouse/issues/41647). [#42198](https://github.com/ClickHouse/ClickHouse/pull/42198) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#42592](https://github.com/ClickHouse/ClickHouse/issues/42592): This closes [#42453](https://github.com/ClickHouse/ClickHouse/issues/42453). [#42573](https://github.com/ClickHouse/ClickHouse/pull/42573) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### NOT FOR CHANGELOG / INSIGNIFICANT
* Add a warning message to release.py script, require release type [#41975](https://github.com/ClickHouse/ClickHouse/pull/41975) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Revert [#27787](https://github.com/ClickHouse/ClickHouse/issues/27787) [#42136](https://github.com/ClickHouse/ClickHouse/pull/42136) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).

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# 2022 Changelog
### ClickHouse release v22.3.14.23-lts (74956bfee4d) FIXME as compared to v22.3.13.80-lts (e2708b01fba)
#### Improvement
* Backported in [#42527](https://github.com/ClickHouse/ClickHouse/issues/42527): Fix issue with passing MySQL timeouts for MySQL database engine and MySQL table function. Closes [#34168](https://github.com/ClickHouse/ClickHouse/issues/34168)?notification_referrer_id=NT_kwDOAzsV57MzMDMxNjAzNTY5OjU0MjAzODc5. [#40751](https://github.com/ClickHouse/ClickHouse/pull/40751) ([Kseniia Sumarokova](https://github.com/kssenii)).
#### Bug Fix
* Backported in [#42432](https://github.com/ClickHouse/ClickHouse/issues/42432): - Choose correct aggregation method for LowCardinality with BigInt. [#42342](https://github.com/ClickHouse/ClickHouse/pull/42342) ([Duc Canh Le](https://github.com/canhld94)).
#### Build/Testing/Packaging Improvement
* Backported in [#42328](https://github.com/ClickHouse/ClickHouse/issues/42328): Update cctz to the latest master, update tzdb to 2020e. [#42273](https://github.com/ClickHouse/ClickHouse/pull/42273) ([Dom Del Nano](https://github.com/ddelnano)).
* Backported in [#42358](https://github.com/ClickHouse/ClickHouse/issues/42358): Update tzdata to 2022e to support the new timezone changes. Palestine transitions are now Saturdays at 02:00. Simplify three Ukraine zones into one. Jordan and Syria switch from +02/+03 with DST to year-round +03. (https://data.iana.org/time-zones/tzdb/NEWS). This closes [#42252](https://github.com/ClickHouse/ClickHouse/issues/42252). [#42327](https://github.com/ClickHouse/ClickHouse/pull/42327) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### Bug Fix (user-visible misbehavior in official stable or prestable release)
* Backported in [#42298](https://github.com/ClickHouse/ClickHouse/issues/42298): Fix a bug with projections and the `aggregate_functions_null_for_empty` setting. This bug is very rare and appears only if you enable the `aggregate_functions_null_for_empty` setting in the server's config. This closes [#41647](https://github.com/ClickHouse/ClickHouse/issues/41647). [#42198](https://github.com/ClickHouse/ClickHouse/pull/42198) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#42592](https://github.com/ClickHouse/ClickHouse/issues/42592): This closes [#42453](https://github.com/ClickHouse/ClickHouse/issues/42453). [#42573](https://github.com/ClickHouse/ClickHouse/pull/42573) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### NOT FOR CHANGELOG / INSIGNIFICANT
* Add a warning message to release.py script, require release type [#41975](https://github.com/ClickHouse/ClickHouse/pull/41975) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Revert [#27787](https://github.com/ClickHouse/ClickHouse/issues/27787) [#42136](https://github.com/ClickHouse/ClickHouse/pull/42136) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).

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# 2022 Changelog
### ClickHouse release v22.6.9.11-stable (9ec61dcac49) FIXME as compared to v22.6.8.35-stable (b91dc59a565)
#### Improvement
* Backported in [#42089](https://github.com/ClickHouse/ClickHouse/issues/42089): Replace back `clickhouse su` command with `sudo -u` in start in order to respect limits in `/etc/security/limits.conf`. [#41847](https://github.com/ClickHouse/ClickHouse/pull/41847) ([Eugene Konkov](https://github.com/ekonkov)).
#### Build/Testing/Packaging Improvement
* Backported in [#41558](https://github.com/ClickHouse/ClickHouse/issues/41558): Add `source` field to deb packages, update `nfpm`. [#41531](https://github.com/ClickHouse/ClickHouse/pull/41531) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
#### Bug Fix (user-visible misbehavior in official stable or prestable release)
* Backported in [#41504](https://github.com/ClickHouse/ClickHouse/issues/41504): Writing data in Apache `ORC` format might lead to a buffer overrun. [#41458](https://github.com/ClickHouse/ClickHouse/pull/41458) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### NOT FOR CHANGELOG / INSIGNIFICANT
* Build latest tags ONLY from master branch [#41567](https://github.com/ClickHouse/ClickHouse/pull/41567) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).

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# 2022 Changelog
### ClickHouse release v22.7.7.24-stable (02ad1f979a8) FIXME as compared to v22.7.6.74-stable (c00ffb3c11a)
#### Bug Fix
* Backported in [#42433](https://github.com/ClickHouse/ClickHouse/issues/42433): - Choose correct aggregation method for LowCardinality with BigInt. [#42342](https://github.com/ClickHouse/ClickHouse/pull/42342) ([Duc Canh Le](https://github.com/canhld94)).
#### Build/Testing/Packaging Improvement
* Backported in [#42329](https://github.com/ClickHouse/ClickHouse/issues/42329): Update cctz to the latest master, update tzdb to 2020e. [#42273](https://github.com/ClickHouse/ClickHouse/pull/42273) ([Dom Del Nano](https://github.com/ddelnano)).
* Backported in [#42359](https://github.com/ClickHouse/ClickHouse/issues/42359): Update tzdata to 2022e to support the new timezone changes. Palestine transitions are now Saturdays at 02:00. Simplify three Ukraine zones into one. Jordan and Syria switch from +02/+03 with DST to year-round +03. (https://data.iana.org/time-zones/tzdb/NEWS). This closes [#42252](https://github.com/ClickHouse/ClickHouse/issues/42252). [#42327](https://github.com/ClickHouse/ClickHouse/pull/42327) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### Bug Fix (user-visible misbehavior in official stable or prestable release)
* Backported in [#42268](https://github.com/ClickHouse/ClickHouse/issues/42268): Fix reusing of files > 4GB from base backup. [#42146](https://github.com/ClickHouse/ClickHouse/pull/42146) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#42299](https://github.com/ClickHouse/ClickHouse/issues/42299): Fix a bug with projections and the `aggregate_functions_null_for_empty` setting. This bug is very rare and appears only if you enable the `aggregate_functions_null_for_empty` setting in the server's config. This closes [#41647](https://github.com/ClickHouse/ClickHouse/issues/41647). [#42198](https://github.com/ClickHouse/ClickHouse/pull/42198) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#42386](https://github.com/ClickHouse/ClickHouse/issues/42386): `ALTER UPDATE` of attached part (with columns different from table schema) could create an invalid `columns.txt` metadata on disk. Reading from such part could fail with errors or return invalid data. Fixes [#42161](https://github.com/ClickHouse/ClickHouse/issues/42161). [#42319](https://github.com/ClickHouse/ClickHouse/pull/42319) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Backported in [#42498](https://github.com/ClickHouse/ClickHouse/issues/42498): Setting `additional_table_filters` were not applied to `Distributed` storage. Fixes [#41692](https://github.com/ClickHouse/ClickHouse/issues/41692). [#42322](https://github.com/ClickHouse/ClickHouse/pull/42322) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Backported in [#42593](https://github.com/ClickHouse/ClickHouse/issues/42593): This closes [#42453](https://github.com/ClickHouse/ClickHouse/issues/42453). [#42573](https://github.com/ClickHouse/ClickHouse/pull/42573) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### NOT FOR CHANGELOG / INSIGNIFICANT
* Add a warning message to release.py script, require release type [#41975](https://github.com/ClickHouse/ClickHouse/pull/41975) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Revert [#27787](https://github.com/ClickHouse/ClickHouse/issues/27787) [#42136](https://github.com/ClickHouse/ClickHouse/pull/42136) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).

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# 2022 Changelog
### ClickHouse release v22.8.7.34-lts (3c38e5e8ab9) FIXME as compared to v22.8.6.71-lts (7bf38a43e30)
#### Improvement
* Backported in [#42096](https://github.com/ClickHouse/ClickHouse/issues/42096): Replace back `clickhouse su` command with `sudo -u` in start in order to respect limits in `/etc/security/limits.conf`. [#41847](https://github.com/ClickHouse/ClickHouse/pull/41847) ([Eugene Konkov](https://github.com/ekonkov)).
#### Bug Fix
* Backported in [#42434](https://github.com/ClickHouse/ClickHouse/issues/42434): - Choose correct aggregation method for LowCardinality with BigInt. [#42342](https://github.com/ClickHouse/ClickHouse/pull/42342) ([Duc Canh Le](https://github.com/canhld94)).
#### Build/Testing/Packaging Improvement
* Backported in [#42296](https://github.com/ClickHouse/ClickHouse/issues/42296): Update cctz to the latest master, update tzdb to 2020e. [#42273](https://github.com/ClickHouse/ClickHouse/pull/42273) ([Dom Del Nano](https://github.com/ddelnano)).
* Backported in [#42360](https://github.com/ClickHouse/ClickHouse/issues/42360): Update tzdata to 2022e to support the new timezone changes. Palestine transitions are now Saturdays at 02:00. Simplify three Ukraine zones into one. Jordan and Syria switch from +02/+03 with DST to year-round +03. (https://data.iana.org/time-zones/tzdb/NEWS). This closes [#42252](https://github.com/ClickHouse/ClickHouse/issues/42252). [#42327](https://github.com/ClickHouse/ClickHouse/pull/42327) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### Bug Fix (user-visible misbehavior in official stable or prestable release)
* Backported in [#42489](https://github.com/ClickHouse/ClickHouse/issues/42489): Removed skipping of mutations in unaffected partitions of `MergeTree` tables, because this feature never worked correctly and might cause resurrection of finished mutations. [#40589](https://github.com/ClickHouse/ClickHouse/pull/40589) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Backported in [#42121](https://github.com/ClickHouse/ClickHouse/issues/42121): Fixed "Part ... intersects part ..." error that might happen in extremely rare cases if replica was restarted just after detaching some part as broken. [#41741](https://github.com/ClickHouse/ClickHouse/pull/41741) ([Alexander Tokmakov](https://github.com/tavplubix)).
* - Prevent crash when passing wrong aggregation states to groupBitmap*. [#41972](https://github.com/ClickHouse/ClickHouse/pull/41972) ([Raúl Marín](https://github.com/Algunenano)).
* - Fix read bytes/rows in X-ClickHouse-Summary with materialized views. [#41973](https://github.com/ClickHouse/ClickHouse/pull/41973) ([Raúl Marín](https://github.com/Algunenano)).
* Backported in [#42269](https://github.com/ClickHouse/ClickHouse/issues/42269): Fix reusing of files > 4GB from base backup. [#42146](https://github.com/ClickHouse/ClickHouse/pull/42146) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#42300](https://github.com/ClickHouse/ClickHouse/issues/42300): Fix a bug with projections and the `aggregate_functions_null_for_empty` setting. This bug is very rare and appears only if you enable the `aggregate_functions_null_for_empty` setting in the server's config. This closes [#41647](https://github.com/ClickHouse/ClickHouse/issues/41647). [#42198](https://github.com/ClickHouse/ClickHouse/pull/42198) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#42387](https://github.com/ClickHouse/ClickHouse/issues/42387): `ALTER UPDATE` of attached part (with columns different from table schema) could create an invalid `columns.txt` metadata on disk. Reading from such part could fail with errors or return invalid data. Fixes [#42161](https://github.com/ClickHouse/ClickHouse/issues/42161). [#42319](https://github.com/ClickHouse/ClickHouse/pull/42319) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Backported in [#42499](https://github.com/ClickHouse/ClickHouse/issues/42499): Setting `additional_table_filters` were not applied to `Distributed` storage. Fixes [#41692](https://github.com/ClickHouse/ClickHouse/issues/41692). [#42322](https://github.com/ClickHouse/ClickHouse/pull/42322) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Backported in [#42571](https://github.com/ClickHouse/ClickHouse/issues/42571): Fix buffer overflow in the processing of Decimal data types. This closes [#42451](https://github.com/ClickHouse/ClickHouse/issues/42451). [#42465](https://github.com/ClickHouse/ClickHouse/pull/42465) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#42594](https://github.com/ClickHouse/ClickHouse/issues/42594): This closes [#42453](https://github.com/ClickHouse/ClickHouse/issues/42453). [#42573](https://github.com/ClickHouse/ClickHouse/pull/42573) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### NOT FOR CHANGELOG / INSIGNIFICANT
* Add a warning message to release.py script, require release type [#41975](https://github.com/ClickHouse/ClickHouse/pull/41975) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Revert [#27787](https://github.com/ClickHouse/ClickHouse/issues/27787) [#42136](https://github.com/ClickHouse/ClickHouse/pull/42136) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).

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# 2022 Changelog
### ClickHouse release v22.8.8.3-lts (ac5a6cababc) FIXME as compared to v22.8.7.34-lts (3c38e5e8ab9)
#### Bug Fix (user-visible misbehavior in official stable or prestable release)
* Backported in [#42677](https://github.com/ClickHouse/ClickHouse/issues/42677): keeper-fix: fix race in accessing logs while snapshot is being installed. [#40627](https://github.com/ClickHouse/ClickHouse/pull/40627) ([Antonio Andelic](https://github.com/antonio2368)).

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# 2022 Changelog
### ClickHouse release v22.9.4.32-stable (3db8bcf1a70) FIXME as compared to v22.9.3.18-stable (0cb4b15d2fa)
#### Bug Fix
* Backported in [#42435](https://github.com/ClickHouse/ClickHouse/issues/42435): - Choose correct aggregation method for LowCardinality with BigInt. [#42342](https://github.com/ClickHouse/ClickHouse/pull/42342) ([Duc Canh Le](https://github.com/canhld94)).
#### Build/Testing/Packaging Improvement
* Backported in [#42297](https://github.com/ClickHouse/ClickHouse/issues/42297): Update cctz to the latest master, update tzdb to 2020e. [#42273](https://github.com/ClickHouse/ClickHouse/pull/42273) ([Dom Del Nano](https://github.com/ddelnano)).
* Backported in [#42361](https://github.com/ClickHouse/ClickHouse/issues/42361): Update tzdata to 2022e to support the new timezone changes. Palestine transitions are now Saturdays at 02:00. Simplify three Ukraine zones into one. Jordan and Syria switch from +02/+03 with DST to year-round +03. (https://data.iana.org/time-zones/tzdb/NEWS). This closes [#42252](https://github.com/ClickHouse/ClickHouse/issues/42252). [#42327](https://github.com/ClickHouse/ClickHouse/pull/42327) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### Bug Fix (user-visible misbehavior in official stable or prestable release)
* Backported in [#42122](https://github.com/ClickHouse/ClickHouse/issues/42122): Fixed "Part ... intersects part ..." error that might happen in extremely rare cases if replica was restarted just after detaching some part as broken. [#41741](https://github.com/ClickHouse/ClickHouse/pull/41741) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Backported in [#41938](https://github.com/ClickHouse/ClickHouse/issues/41938): Don't allow to create or alter merge tree tables with virtual column name _row_exists, which is reserved for lightweight delete. Fixed [#41716](https://github.com/ClickHouse/ClickHouse/issues/41716). [#41763](https://github.com/ClickHouse/ClickHouse/pull/41763) ([Jianmei Zhang](https://github.com/zhangjmruc)).
* Backported in [#42179](https://github.com/ClickHouse/ClickHouse/issues/42179): Fix reusing of files > 4GB from base backup. [#42146](https://github.com/ClickHouse/ClickHouse/pull/42146) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#42301](https://github.com/ClickHouse/ClickHouse/issues/42301): Fix a bug with projections and the `aggregate_functions_null_for_empty` setting. This bug is very rare and appears only if you enable the `aggregate_functions_null_for_empty` setting in the server's config. This closes [#41647](https://github.com/ClickHouse/ClickHouse/issues/41647). [#42198](https://github.com/ClickHouse/ClickHouse/pull/42198) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#42388](https://github.com/ClickHouse/ClickHouse/issues/42388): `ALTER UPDATE` of attached part (with columns different from table schema) could create an invalid `columns.txt` metadata on disk. Reading from such part could fail with errors or return invalid data. Fixes [#42161](https://github.com/ClickHouse/ClickHouse/issues/42161). [#42319](https://github.com/ClickHouse/ClickHouse/pull/42319) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Backported in [#42500](https://github.com/ClickHouse/ClickHouse/issues/42500): Setting `additional_table_filters` were not applied to `Distributed` storage. Fixes [#41692](https://github.com/ClickHouse/ClickHouse/issues/41692). [#42322](https://github.com/ClickHouse/ClickHouse/pull/42322) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).
* Backported in [#42581](https://github.com/ClickHouse/ClickHouse/issues/42581): This reverts [#40217](https://github.com/ClickHouse/ClickHouse/issues/40217) which introduced a regression in date/time functions. [#42367](https://github.com/ClickHouse/ClickHouse/pull/42367) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#42572](https://github.com/ClickHouse/ClickHouse/issues/42572): Fix buffer overflow in the processing of Decimal data types. This closes [#42451](https://github.com/ClickHouse/ClickHouse/issues/42451). [#42465](https://github.com/ClickHouse/ClickHouse/pull/42465) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#42595](https://github.com/ClickHouse/ClickHouse/issues/42595): This closes [#42453](https://github.com/ClickHouse/ClickHouse/issues/42453). [#42573](https://github.com/ClickHouse/ClickHouse/pull/42573) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
#### NOT FOR CHANGELOG / INSIGNIFICANT
* Add a warning message to release.py script, require release type [#41975](https://github.com/ClickHouse/ClickHouse/pull/41975) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Revert [#27787](https://github.com/ClickHouse/ClickHouse/issues/27787) [#42136](https://github.com/ClickHouse/ClickHouse/pull/42136) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).

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Blocks are created for every processed chunk of data. Note that for the same type of calculation, the column names and types remain the same for different blocks, and only column data changes. It is better to split block data from the block header because small block sizes have a high overhead of temporary strings for copying shared_ptrs and column names.
## Block Streams {#block-streams}
## Processors
Block streams are for processing data. We use streams of blocks to read data from somewhere, perform data transformations, or write data to somewhere. `IBlockInputStream` has the `read` method to fetch the next block while available. `IBlockOutputStream` has the `write` method to push the block somewhere.
Streams are responsible for:
1. Reading or writing to a table. The table just returns a stream for reading or writing blocks.
2. Implementing data formats. For example, if you want to output data to a terminal in `Pretty` format, you create a block output stream where you push blocks, and it formats them.
3. Performing data transformations. Let’s say you have `IBlockInputStream` and want to create a filtered stream. You create `FilterBlockInputStream` and initialize it with your stream. Then when you pull a block from `FilterBlockInputStream`, it pulls a block from your stream, filters it, and returns the filtered block to you. Query execution pipelines are represented this way.
There are more sophisticated transformations. For example, when you pull from `AggregatingBlockInputStream`, it reads all data from its source, aggregates it, and then returns a stream of aggregated data for you. Another example: `UnionBlockInputStream` accepts many input sources in the constructor and also a number of threads. It launches multiple threads and reads from multiple sources in parallel.
> Block streams use the “pull” approach to control flow: when you pull a block from the first stream, it consequently pulls the required blocks from nested streams, and the entire execution pipeline will work. Neither “pull” nor “push” is the best solution, because control flow is implicit, and that limits the implementation of various features like simultaneous execution of multiple queries (merging many pipelines together). This limitation could be overcome with coroutines or just running extra threads that wait for each other. We may have more possibilities if we make control flow explicit: if we locate the logic for passing data from one calculation unit to another outside of those calculation units. Read this [article](http://journal.stuffwithstuff.com/2013/01/13/iteration-inside-and-out/) for more thoughts.
We should note that the query execution pipeline creates temporary data at each step. We try to keep block size small enough so that temporary data fits in the CPU cache. With that assumption, writing and reading temporary data is almost free in comparison with other calculations. We could consider an alternative, which is to fuse many operations in the pipeline together. It could make the pipeline as short as possible and remove much of the temporary data, which could be an advantage, but it also has drawbacks. For example, a split pipeline makes it easy to implement caching intermediate data, stealing intermediate data from similar queries running at the same time, and merging pipelines for similar queries.
See the description at [https://github.com/ClickHouse/ClickHouse/blob/master/src/Processors/IProcessor.h](https://github.com/ClickHouse/ClickHouse/blob/master/src/Processors/IProcessor.h).
## Formats {#formats}
Data formats are implemented with block streams. There are “presentational” formats only suitable for the output of data to the client, such as `Pretty` format, which provides only `IBlockOutputStream`. And there are input/output formats, such as `TabSeparated` or `JSONEachRow`.
There are also row streams: `IRowInputStream` and `IRowOutputStream`. They allow you to pull/push data by individual rows, not by blocks. And they are only needed to simplify the implementation of row-oriented formats. The wrappers `BlockInputStreamFromRowInputStream` and `BlockOutputStreamFromRowOutputStream` allow you to convert row-oriented streams to regular block-oriented streams.
Data formats are implemented with processors.
## I/O {#io}

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@ -1,14 +0,0 @@
---
slug: /en/development/browse-code
sidebar_label: Source Code Browser
sidebar_position: 72
description: Various ways to browse and edit the source code
---
# Browse ClickHouse Source Code
You can use the **Woboq** online code browser available [here](https://clickhouse.com/codebrowser/ClickHouse/src/index.html). It provides code navigation and semantic highlighting, search and indexing. The code snapshot is updated daily.
Also, you can browse sources on [GitHub](https://github.com/ClickHouse/ClickHouse) as usual.
If you’re interested what IDE to use, we recommend CLion, QT Creator, VS Code and KDevelop (with caveats). You can use any favorite IDE. Vim and Emacs also count.

10
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@ -38,13 +38,13 @@ For other Linux distribution - check the availability of the [prebuild packages]
#### Use the latest clang for Builds
``` bash
export CC=clang-14
export CXX=clang++-14
export CC=clang-15
export CXX=clang++-15
```
In this example we use version 14 that is the latest as of Feb 2022.
In this example we use version 15 that is the latest as of Sept 2022.
Gcc can also be used though it is discouraged.
Gcc cannot be used.
### Checkout ClickHouse Sources {#checkout-clickhouse-sources}
@ -105,7 +105,7 @@ ninja
Example for Fedora Rawhide:
``` bash
sudo yum update
yum --nogpg install git cmake make clang-c++ python3
sudo yum --nogpg install git cmake make clang python3 ccache
git clone --recursive https://github.com/ClickHouse/ClickHouse.git
mkdir build && cd build
cmake ../ClickHouse

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@ -122,7 +122,7 @@ If you use Arch or Gentoo, you probably know it yourself how to install CMake.
## C++ Compiler {#c-compiler}
Compilers Clang starting from version 12 is supported for building ClickHouse.
Compilers Clang starting from version 15 is supported for building ClickHouse.
Clang should be used instead of gcc. Though, our continuous integration (CI) platform runs checks for about a dozen of build combinations.
@ -146,7 +146,7 @@ While inside the `build` directory, configure your build by running CMake. Befor
export CC=clang CXX=clang++
cmake ..
If you installed clang using the automatic installation script above, also specify the version of clang installed in the first command, e.g. `export CC=clang-14 CXX=clang++-14`. The clang version will be in the script output.
If you installed clang using the automatic installation script above, also specify the version of clang installed in the first command, e.g. `export CC=clang-15 CXX=clang++-15`. The clang version will be in the script output.
The `CC` variable specifies the compiler for C (short for C Compiler), and `CXX` variable instructs which C++ compiler is to be used for building.
@ -178,7 +178,7 @@ If you get the message: `ninja: error: loading 'build.ninja': No such file or di
Upon the successful start of the building process, you’ll see the build progress - the number of processed tasks and the total number of tasks.
While building messages about protobuf files in libhdfs2 library like `libprotobuf WARNING` may show up. They affect nothing and are safe to be ignored.
While building messages about LLVM library may show up. They affect nothing and are safe to be ignored.
Upon successful build you get an executable file `ClickHouse/<build_dir>/programs/clickhouse`:
@ -272,15 +272,10 @@ Most probably some of the builds will fail at first times. This is due to the fa
You can use the **Woboq** online code browser available [here](https://clickhouse.com/codebrowser/ClickHouse/src/index.html). It provides code navigation, semantic highlighting, search and indexing. The code snapshot is updated daily.
You can use GitHub integrated code browser [here](https://github.dev/ClickHouse/ClickHouse).
Also, you can browse sources on [GitHub](https://github.com/ClickHouse/ClickHouse) as usual.
## Faster builds for development: Split build configuration {#split-build}
ClickHouse is normally statically linked into a single static `clickhouse` binary with minimal dependencies. This is convenient for distribution, but it means that for every change the entire binary needs to be re-linked, which is slow and inconvenient for development. As an alternative, you can instead build dynamically linked shared libraries, allowing for faster incremental builds. To use it, add the following flags to your `cmake` invocation:
```
-DUSE_STATIC_LIBRARIES=0 -DSPLIT_SHARED_LIBRARIES=1
```
If you are not interested in functionality provided by third-party libraries, you can further speed up the build using `cmake` options
```
-DENABLE_LIBRARIES=0 -DENABLE_EMBEDDED_COMPILER=0

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@ -77,15 +77,15 @@ While turning on `gtid_mode` you should also specify `enforce_gtid_consistency =
## Virtual Columns {#virtual-columns}
When working with the `MaterializedMySQL` database engine, [ReplacingMergeTree](../../engines/table-engines/mergetree-family/replacingmergetree.md) tables are used with virtual `_sign` and `_version` columns.
When working with the `MaterializedMySQL` database engine, [ReplacingMergeTree](/docs/en/engines/table-engines/mergetree-family/replacingmergetree.md) tables are used with virtual `_sign` and `_version` columns.
### \_version
`_version` — Transaction counter. Type [UInt64](../../sql-reference/data-types/int-uint.md).
`_version` — Transaction counter. Type [UInt64](/docs/en/sql-reference/data-types/int-uint.md).
### \_sign
`_sign` — Deletion mark. Type [Int8](../../sql-reference/data-types/int-uint.md). Possible values:
`_sign` — Deletion mark. Type [Int8](/docs/en/sql-reference/data-types/int-uint.md). Possible values:
- `1` — Row is not deleted,
- `-1` — Row is deleted.
@ -93,29 +93,29 @@ When working with the `MaterializedMySQL` database engine, [ReplacingMergeTree](
| 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) |
| TINY | [Int8](/docs/en/sql-reference/data-types/int-uint.md) |
| SHORT | [Int16](/docs/en/sql-reference/data-types/int-uint.md) |
| INT24 | [Int32](/docs/en/sql-reference/data-types/int-uint.md) |
| LONG | [UInt32](/docs/en/sql-reference/data-types/int-uint.md) |
| LONGLONG | [UInt64](/docs/en/sql-reference/data-types/int-uint.md) |
| FLOAT | [Float32](/docs/en/sql-reference/data-types/float.md) |
| DOUBLE | [Float64](/docs/en/sql-reference/data-types/float.md) |
| DECIMAL, NEWDECIMAL | [Decimal](/docs/en/sql-reference/data-types/decimal.md) |
| DATE, NEWDATE | [Date](/docs/en/sql-reference/data-types/date.md) |
| DATETIME, TIMESTAMP | [DateTime](/docs/en/sql-reference/data-types/datetime.md) |
| DATETIME2, TIMESTAMP2 | [DateTime64](/docs/en/sql-reference/data-types/datetime64.md) |
| YEAR | [UInt16](/docs/en/sql-reference/data-types/int-uint.md) |
| TIME | [Int64](/docs/en/sql-reference/data-types/int-uint.md) |
| ENUM | [Enum](/docs/en/sql-reference/data-types/enum.md) |
| STRING | [String](/docs/en/sql-reference/data-types/string.md) |
| VARCHAR, VAR_STRING | [String](/docs/en/sql-reference/data-types/string.md) |
| BLOB | [String](/docs/en/sql-reference/data-types/string.md) |
| GEOMETRY | [String](/docs/en/sql-reference/data-types/string.md) |
| BINARY | [FixedString](/docs/en/sql-reference/data-types/fixedstring.md) |
| BIT | [UInt64](/docs/en/sql-reference/data-types/int-uint.md) |
| SET | [UInt64](/docs/en/sql-reference/data-types/int-uint.md) |
[Nullable](../../sql-reference/data-types/nullable.md) is supported.
[Nullable](/docs/en/sql-reference/data-types/nullable.md) is supported.
The data of TIME type in MySQL is converted to microseconds in ClickHouse.
@ -133,7 +133,7 @@ Apart of the data types limitations there are few restrictions comparing to `MyS
### DDL Queries {#ddl-queries}
MySQL DDL queries are converted into the corresponding ClickHouse DDL queries ([ALTER](../../sql-reference/statements/alter/index.md), [CREATE](../../sql-reference/statements/create/index.md), [DROP](../../sql-reference/statements/drop), [RENAME](../../sql-reference/statements/rename.md)). If ClickHouse cannot parse some DDL query, the query is ignored.
MySQL DDL queries are converted into the corresponding ClickHouse DDL queries ([ALTER](/docs/en/sql-reference/statements/alter/index.md), [CREATE](/docs/en/sql-reference/statements/create/index.md), [DROP](/docs/en/sql-reference/statements/drop.md), [RENAME](/docs/en/sql-reference/statements/rename.md)). If ClickHouse cannot parse some DDL query, the query is ignored.
### Data Replication {#data-replication}
@ -151,7 +151,7 @@ MySQL DDL queries are converted into the corresponding ClickHouse DDL queries ([
`SELECT` query from `MaterializedMySQL` tables has some specifics:
- If `_version` is not specified in the `SELECT` query, the
[FINAL](../../sql-reference/statements/select/from.md#select-from-final) modifier is used, so only rows with
[FINAL](/docs/en/sql-reference/statements/select/from.md/#select-from-final) modifier is used, so only rows with
`MAX(_version)` are returned for each primary key value.
- If `_sign` is not specified in the `SELECT` query, `WHERE _sign=1` is used by default. So the deleted rows are not
@ -164,7 +164,7 @@ MySQL DDL queries are converted into the corresponding ClickHouse DDL queries ([
MySQL `PRIMARY KEY` and `INDEX` clauses are converted into `ORDER BY` tuples in ClickHouse tables.
ClickHouse has only one physical order, which is determined by `ORDER BY` clause. To create a new physical order, use
[materialized views](../../sql-reference/statements/create/view.md#materialized).
[materialized views](/docs/en/sql-reference/statements/create/view.md/#materialized).
**Notes**
@ -173,7 +173,7 @@ ClickHouse has only one physical order, which is determined by `ORDER BY` clause
MySQL binlog.
- Replication can be easily broken.
- Manual operations on database and tables are forbidden.
- `MaterializedMySQL` is affected by the [optimize_on_insert](../../operations/settings/settings.md#optimize-on-insert)
- `MaterializedMySQL` is affected by the [optimize_on_insert](/docs/en/operations/settings/settings.md/#optimize-on-insert)
setting. Data is merged in the corresponding table in the `MaterializedMySQL` database when a table in the MySQL
server changes.
@ -187,19 +187,19 @@ These are the schema conversion manipulations you can do with table overrides fo
* Modify column type. Must be compatible with the original type, or replication will fail. For example,
you can modify a UInt32 column to UInt64, but you can not modify a String column to Array(String).
* Modify [column TTL](../table-engines/mergetree-family/mergetree/#mergetree-column-ttl).
* Modify [column compression codec](../../sql-reference/statements/create/table/#codecs).
* Add [ALIAS columns](../../sql-reference/statements/create/table/#alias).
* Add [skipping indexes](../table-engines/mergetree-family/mergetree/#table_engine-mergetree-data_skipping-indexes)
* Add [projections](../table-engines/mergetree-family/mergetree/#projections). Note that projection optimizations are
* Modify [column TTL](/docs/en/engines/table-engines/mergetree-family/mergetree.md/#mergetree-column-ttl).
* Modify [column compression codec](/docs/en/sql-reference/statements/create/table.md/#codecs).
* Add [ALIAS columns](/docs/en/sql-reference/statements/create/table.md/#alias).
* Add [skipping indexes](/docs/en/engines/table-engines/mergetree-family/mergetree.md/#table_engine-mergetree-data_skipping-indexes)
* Add [projections](/docs/en/engines/table-engines/mergetree-family/mergetree.md/#projections). Note that projection optimizations are
disabled when using `SELECT ... FINAL` (which MaterializedMySQL does by default), so their utility is limited here.
`INDEX ... TYPE hypothesis` as [described in the v21.12 blog post]](https://clickhouse.com/blog/en/2021/clickhouse-v21.12-released/)
may be more useful in this case.
* Modify [PARTITION BY](../table-engines/mergetree-family/custom-partitioning-key/)
* Modify [ORDER BY](../table-engines/mergetree-family/mergetree/#mergetree-query-clauses)
* Modify [PRIMARY KEY](../table-engines/mergetree-family/mergetree/#mergetree-query-clauses)
* Add [SAMPLE BY](../table-engines/mergetree-family/mergetree/#mergetree-query-clauses)
* Add [table TTL](../table-engines/mergetree-family/mergetree/#mergetree-query-clauses)
* Modify [PARTITION BY](/docs/en/engines/table-engines/mergetree-family/custom-partitioning-key/)
* Modify [ORDER BY](/docs/en/engines/table-engines/mergetree-family/mergetree.md/#mergetree-query-clauses)
* Modify [PRIMARY KEY](/docs/en/engines/table-engines/mergetree-family/mergetree.md/#mergetree-query-clauses)
* Add [SAMPLE BY](/docs/en/engines/table-engines/mergetree-family/mergetree.md/#mergetree-query-clauses)
* Add [table TTL](/docs/en/engines/table-engines/mergetree-family/mergetree.md/#mergetree-query-clauses)
```sql
CREATE DATABASE db_name ENGINE = MaterializedMySQL(...)

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@ -86,7 +86,7 @@ node1 :) SELECT materialize(hostName()) AS host, groupArray(n) FROM r.d GROUP BY
``` text
┌─hosts─┬─groupArray(n)─┐
│ node1 │ [1,3,5,7,9] │
│ node3 │ [1,3,5,7,9] │
│ node2 │ [0,2,4,6,8] │
└───────┴───────────────┘
```

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@ -6,7 +6,7 @@ sidebar_label: Integrations
# Table Engines for Integrations
ClickHouse provides various means for integrating with external systems, including table engines. Like with all other table engines, the configuration is done using `CREATE TABLE` or `ALTER TABLE` queries. Then from a user perspective, the configured integration looks like a normal table, but queries to it are proxied to the external system. This transparent querying is one of the key advantages of this approach over alternative integration methods, like external dictionaries or table functions, which require to use custom query methods on each use.
ClickHouse provides various means for integrating with external systems, including table engines. Like with all other table engines, the configuration is done using `CREATE TABLE` or `ALTER TABLE` queries. Then from a user perspective, the configured integration looks like a normal table, but queries to it are proxied to the external system. This transparent querying is one of the key advantages of this approach over alternative integration methods, like dictionaries or table functions, which require to use custom query methods on each use.
List of supported integrations:

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@ -180,6 +180,6 @@ Default value: `300`.
## See Also {#see-also}
- [The mysql table function](../../../sql-reference/table-functions/mysql.md)
- [Using MySQL as a source of external dictionary](../../../sql-reference/dictionaries/external-dictionaries/external-dicts-dict-sources.md#dicts-external_dicts_dict_sources-mysql)
- [Using MySQL as a dictionary source](../../../sql-reference/dictionaries/external-dictionaries/external-dicts-dict-sources.md#dicts-external_dicts_dict_sources-mysql)
[Original article](https://clickhouse.com/docs/en/engines/table-engines/integrations/mysql/) <!--hide-->

2
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@ -126,7 +126,7 @@ SELECT * FROM odbc_t
## See Also {#see-also}
- [ODBC external dictionaries](../../../sql-reference/dictionaries/external-dictionaries/external-dicts-dict-sources.md#dicts-external_dicts_dict_sources-odbc)
- [ODBC dictionaries](../../../sql-reference/dictionaries/external-dictionaries/external-dicts-dict-sources.md#dicts-external_dicts_dict_sources-odbc)
- [ODBC table function](../../../sql-reference/table-functions/odbc.md)
[Original article](https://clickhouse.com/docs/en/engines/table-engines/integrations/odbc/) <!--hide-->

2
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@ -174,6 +174,6 @@ CREATE TABLE pg_table_schema_with_dots (a UInt32)
**See Also**
- [The `postgresql` table function](../../../sql-reference/table-functions/postgresql.md)
- [Using PostgreSQL as a source of external dictionary](../../../sql-reference/dictionaries/external-dictionaries/external-dicts-dict-sources.md#dicts-external_dicts_dict_sources-postgresql)
- [Using PostgreSQL as a dictionary source](../../../sql-reference/dictionaries/external-dictionaries/external-dicts-dict-sources.md#dicts-external_dicts_dict_sources-postgresql)
[Original article](https://clickhouse.com/docs/en/engines/table-engines/integrations/postgresql/) <!--hide-->

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@ -139,7 +139,7 @@ The following settings can be specified in configuration file for given endpoint
- `use_environment_credentials` — If set to `true`, S3 client will try to obtain credentials from environment variables and [Amazon EC2](https://en.wikipedia.org/wiki/Amazon_Elastic_Compute_Cloud) metadata for given endpoint. Optional, default value is `false`.
- `region` — Specifies S3 region name. Optional.
- `use_insecure_imds_request` — If set to `true`, S3 client will use insecure IMDS request while obtaining credentials from Amazon EC2 metadata. Optional, default value is `false`.
- `header` — Adds specified HTTP header to a request to given endpoint. Optional, can be speficied multiple times.
- `header` — Adds specified HTTP header to a request to given endpoint. Optional, can be specified multiple times.
- `server_side_encryption_customer_key_base64` — If specified, required headers for accessing S3 objects with SSE-C encryption will be set. Optional.
- `max_single_read_retries` — The maximum number of attempts during single read. Default value is `4`. Optional.

10
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@ -10,11 +10,11 @@ These engines were developed for scenarios when you need to quickly write many s
Engines of the family:
- [StripeLog](../../../engines/table-engines/log-family/stripelog.md)
- [Log](../../../engines/table-engines/log-family/log.md)
- [TinyLog](../../../engines/table-engines/log-family/tinylog.md)
- [StripeLog](/docs/en/engines/table-engines/log-family/stripelog.md)
- [Log](/docs/en/engines/table-engines/log-family/log.md)
- [TinyLog](/docs/en/engines/table-engines/log-family/tinylog.md)
`Log` family table engines can store data to [HDFS](../../../engines/table-engines/mergetree-family/mergetree.md#table_engine-mergetree-hdfs) or [S3](../../../engines/table-engines/mergetree-family/mergetree.md#table_engine-mergetree-s3) distributed file systems.
`Log` family table engines can store data to [HDFS](/docs/en/engines/table-engines/mergetree-family/mergetree.md/#table_engine-mergetree-hdfs) or [S3](/docs/en/engines/table-engines/mergetree-family/mergetree.md/#table_engine-mergetree-s3) distributed file systems.
## Common Properties {#common-properties}
@ -28,7 +28,7 @@ Engines:
During `INSERT` queries, the table is locked, and other queries for reading and writing data both wait for the table to unlock. If there are no data writing queries, any number of data reading queries can be performed concurrently.
- Do not support [mutations](../../../sql-reference/statements/alter/index.md#alter-mutations).
- Do not support [mutations](/docs/en/sql-reference/statements/alter/index.md#alter-mutations).
- Do not support indexes.

41
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@ -68,36 +68,57 @@ In the results of `SELECT` query, the values of `AggregateFunction` type have im
## Example of an Aggregated Materialized View {#example-of-an-aggregated-materialized-view}
`AggregatingMergeTree` materialized view that watches the `test.visits` table:
We will create the table `test.visits` that contain the raw data:
``` sql
CREATE MATERIALIZED VIEW test.basic
ENGINE = AggregatingMergeTree() PARTITION BY toYYYYMM(StartDate) ORDER BY (CounterID, StartDate)
CREATE TABLE test.visits
(
StartDate DateTime64 NOT NULL,
CounterID UInt64,
Sign Nullable(Int32),
UserID Nullable(Int32)
) ENGINE = MergeTree ORDER BY (StartDate, CounterID);
```
`AggregatingMergeTree` materialized view that watches the `test.visits` table, and use the `AggregateFunction` type:
``` sql
CREATE MATERIALIZED VIEW test.mv_visits
(
StartDate DateTime64 NOT NULL,
CounterID UInt64,
Visits AggregateFunction(sum, Nullable(Int32)),
Users AggregateFunction(uniq, Nullable(Int32))
)
ENGINE = AggregatingMergeTree() ORDER BY (StartDate, CounterID)
AS SELECT
CounterID,
StartDate,
sumState(Sign) AS Visits,
CounterID,
sumState(Sign) AS Visits,
uniqState(UserID) AS Users
FROM test.visits
GROUP BY CounterID, StartDate;
GROUP BY StartDate, CounterID;
```
Inserting data into the `test.visits` table.
``` sql
INSERT INTO test.visits ...
INSERT INTO test.visits (StartDate, CounterID, Sign, UserID)
VALUES (1667446031, 1, 3, 4)
INSERT INTO test.visits (StartDate, CounterID, Sign, UserID)
VALUES (1667446031, 1, 6, 3)
```
The data are inserted in both the table and view `test.basic` that will perform the aggregation.
The data are inserted in both the table and the materialized view `test.mv_visits`.
To get the aggregated data, we need to execute a query such as `SELECT ... GROUP BY ...` from the view `test.basic`:
To get the aggregated data, we need to execute a query such as `SELECT ... GROUP BY ...` from the materialized view `test.mv_visits`:
``` sql
SELECT
StartDate,
sumMerge(Visits) AS Visits,
uniqMerge(Users) AS Users
FROM test.basic
FROM test.mv_visits
GROUP BY StartDate
ORDER BY StartDate;
```

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@ -16,20 +16,20 @@ Main features:
This allows you to create a small sparse index that helps find data faster.
- Partitions can be used if the [partitioning key](../../../engines/table-engines/mergetree-family/custom-partitioning-key.md) is specified.
- Partitions can be used if the [partitioning key](/docs/en/engines/table-engines/mergetree-family/custom-partitioning-key.md) is specified.
ClickHouse supports certain operations with partitions that are more efficient than general operations on the same data with the same result. ClickHouse also automatically cuts off the partition data where the partitioning key is specified in the query.
- Data replication support.
The family of `ReplicatedMergeTree` tables provides data replication. For more information, see [Data replication](../../../engines/table-engines/mergetree-family/replication.md).
The family of `ReplicatedMergeTree` tables provides data replication. For more information, see [Data replication](/docs/en/engines/table-engines/mergetree-family/replication.md).
- Data sampling support.
If necessary, you can set the data sampling method in the table.
:::info
The [Merge](../../../engines/table-engines/special/merge.md#merge) engine does not belong to the `*MergeTree` family.
The [Merge](/docs/en/engines/table-engines/special/merge.md/#merge) engine does not belong to the `*MergeTree` family.
:::
## Creating a Table {#table_engine-mergetree-creating-a-table}
@ -57,7 +57,7 @@ ORDER BY expr
[SETTINGS name=value, ...]
```
For a description of parameters, see the [CREATE query description](../../../sql-reference/statements/create/table.md).
For a description of parameters, see the [CREATE query description](/docs/en/sql-reference/statements/create/table.md).
### Query Clauses {#mergetree-query-clauses}
@ -77,9 +77,9 @@ Use the `ORDER BY tuple()` syntax, if you do not need sorting. See [Selecting th
#### PARTITION BY
`PARTITION BY` — The [partitioning key](../../../engines/table-engines/mergetree-family/custom-partitioning-key.md). Optional. In most cases you don't need partition key, and in most other cases you don't need partition key more granular than by months. Partitioning does not speed up queries (in contrast to the ORDER BY expression). You should never use too granular partitioning. Don't partition your data by client identifiers or names (instead make client identifier or name the first column in the ORDER BY expression).
`PARTITION BY` — The [partitioning key](/docs/en/engines/table-engines/mergetree-family/custom-partitioning-key.md). Optional. In most cases you don't need partition key, and in most other cases you don't need partition key more granular than by months. Partitioning does not speed up queries (in contrast to the ORDER BY expression). You should never use too granular partitioning. Don't partition your data by client identifiers or names (instead make client identifier or name the first column in the ORDER BY expression).
For partitioning by month, use the `toYYYYMM(date_column)` expression, where `date_column` is a column with a date of the type [Date](../../../sql-reference/data-types/date.md). The partition names here have the `"YYYYMM"` format.
For partitioning by month, use the `toYYYYMM(date_column)` expression, where `date_column` is a column with a date of the type [Date](/docs/en/sql-reference/data-types/date.md). The partition names here have the `"YYYYMM"` format.
#### PRIMARY KEY
@ -127,7 +127,7 @@ Additional parameters that control the behavior of the `MergeTree` (optional):
#### use_minimalistic_part_header_in_zookeeper
`use_minimalistic_part_header_in_zookeeper` — Storage method of the data parts headers in ZooKeeper. If `use_minimalistic_part_header_in_zookeeper=1`, then ZooKeeper stores less data. For more information, see the [setting description](../../../operations/server-configuration-parameters/settings.md#server-settings-use_minimalistic_part_header_in_zookeeper) in “Server configuration parameters”.
`use_minimalistic_part_header_in_zookeeper` — Storage method of the data parts headers in ZooKeeper. If `use_minimalistic_part_header_in_zookeeper=1`, then ZooKeeper stores less data. For more information, see the [setting description](/docs/en/operations/server-configuration-parameters/settings.md/#server-settings-use_minimalistic_part_header_in_zookeeper) in “Server configuration parameters”.
#### min_merge_bytes_to_use_direct_io
@ -166,15 +166,15 @@ Additional parameters that control the behavior of the `MergeTree` (optional):
#### max_compress_block_size
`max_compress_block_size` — Maximum size of blocks of uncompressed data before compressing for writing to a table. You can also specify this setting in the global settings (see [max_compress_block_size](../../../operations/settings/settings.md#max-compress-block-size) setting). The value specified when table is created overrides the global value for this setting.
`max_compress_block_size` — Maximum size of blocks of uncompressed data before compressing for writing to a table. You can also specify this setting in the global settings (see [max_compress_block_size](/docs/en/operations/settings/settings.md/#max-compress-block-size) setting). The value specified when table is created overrides the global value for this setting.
#### min_compress_block_size
`min_compress_block_size` — Minimum size of blocks of uncompressed data required for compression when writing the next mark. You can also specify this setting in the global settings (see [min_compress_block_size](../../../operations/settings/settings.md#min-compress-block-size) setting). The value specified when table is created overrides the global value for this setting.
`min_compress_block_size` — Minimum size of blocks of uncompressed data required for compression when writing the next mark. You can also specify this setting in the global settings (see [min_compress_block_size](/docs/en/operations/settings/settings.md/#min-compress-block-size) setting). The value specified when table is created overrides the global value for this setting.
#### max_partitions_to_read
`max_partitions_to_read` — Limits the maximum number of partitions that can be accessed in one query. You can also specify setting [max_partitions_to_read](../../../operations/settings/merge-tree-settings.md#max-partitions-to-read) in the global setting.
`max_partitions_to_read` — Limits the maximum number of partitions that can be accessed in one query. You can also specify setting [max_partitions_to_read](/docs/en/operations/settings/merge-tree-settings.md/#max-partitions-to-read) in the global setting.
**Example of Sections Setting**
@ -184,7 +184,7 @@ ENGINE MergeTree() PARTITION BY toYYYYMM(EventDate) ORDER BY (CounterID, EventDa
In the example, we set partitioning by month.
We also set an expression for sampling as a hash by the user ID. This allows you to pseudorandomize the data in the table for each `CounterID` and `EventDate`. If you define a [SAMPLE](../../../sql-reference/statements/select/sample.md#select-sample-clause) clause when selecting the data, ClickHouse will return an evenly pseudorandom data sample for a subset of users.
We also set an expression for sampling as a hash by the user ID. This allows you to pseudorandomize the data in the table for each `CounterID` and `EventDate`. If you define a [SAMPLE](/docs/en/sql-reference/statements/select/sample.md/#select-sample-clause) clause when selecting the data, ClickHouse will return an evenly pseudorandom data sample for a subset of users.
The `index_granularity` setting can be omitted because 8192 is the default value.
@ -207,9 +207,9 @@ CREATE TABLE [IF NOT EXISTS] [db.]table_name [ON CLUSTER cluster]
**MergeTree() Parameters**
- `date-column` — The name of a column of the [Date](../../../sql-reference/data-types/date.md) type. ClickHouse automatically creates partitions by month based on this column. The partition names are in the `"YYYYMM"` format.
- `date-column` — The name of a column of the [Date](/docs/en/sql-reference/data-types/date.md) type. ClickHouse automatically creates partitions by month based on this column. The partition names are in the `"YYYYMM"` format.
- `sampling_expression` — An expression for sampling.
- `(primary, key)` — Primary key. Type: [Tuple()](../../../sql-reference/data-types/tuple.md)
- `(primary, key)` — Primary key. Type: [Tuple()](/docs/en/sql-reference/data-types/tuple.md)
- `index_granularity` — The granularity of an index. The number of data rows between the “marks” of an index. The value 8192 is appropriate for most tasks.
**Example**
@ -262,7 +262,7 @@ Sparse indexes allow you to work with a very large number of table rows, because
ClickHouse does not require a unique primary key. You can insert multiple rows with the same primary key.
You can use `Nullable`-typed expressions in the `PRIMARY KEY` and `ORDER BY` clauses but it is strongly discouraged. To allow this feature, turn on the [allow_nullable_key](../../../operations/settings/settings.md#allow-nullable-key) setting. The [NULLS_LAST](../../../sql-reference/statements/select/order-by.md#sorting-of-special-values) principle applies for `NULL` values in the `ORDER BY` clause.
You can use `Nullable`-typed expressions in the `PRIMARY KEY` and `ORDER BY` clauses but it is strongly discouraged. To allow this feature, turn on the [allow_nullable_key](/docs/en/operations/settings/settings.md/#allow-nullable-key) setting. The [NULLS_LAST](/docs/en/sql-reference/statements/select/order-by.md/#sorting-of-special-values) principle applies for `NULL` values in the `ORDER BY` clause.
### Selecting the Primary Key {#selecting-the-primary-key}
@ -279,26 +279,26 @@ The number of columns in the primary key is not explicitly limited. Depending on
ClickHouse sorts data by primary key, so the higher the consistency, the better the compression.
- Provide additional logic when merging data parts in the [CollapsingMergeTree](../../../engines/table-engines/mergetree-family/collapsingmergetree.md#table_engine-collapsingmergetree) and [SummingMergeTree](../../../engines/table-engines/mergetree-family/summingmergetree.md) engines.
- Provide additional logic when merging data parts in the [CollapsingMergeTree](/docs/en/engines/table-engines/mergetree-family/collapsingmergetree.md/#table_engine-collapsingmergetree) and [SummingMergeTree](/docs/en/engines/table-engines/mergetree-family/summingmergetree.md) engines.
In this case it makes sense to specify the *sorting key* that is different from the primary key.
A long primary key will negatively affect the insert performance and memory consumption, but extra columns in the primary key do not affect ClickHouse performance during `SELECT` queries.
You can create a table without a primary key using the `ORDER BY tuple()` syntax. In this case, ClickHouse stores data in the order of inserting. If you want to save data order when inserting data by `INSERT ... SELECT` queries, set [max_insert_threads = 1](../../../operations/settings/settings.md#settings-max-insert-threads).
You can create a table without a primary key using the `ORDER BY tuple()` syntax. In this case, ClickHouse stores data in the order of inserting. If you want to save data order when inserting data by `INSERT ... SELECT` queries, set [max_insert_threads = 1](/docs/en/operations/settings/settings.md/#settings-max-insert-threads).
To select data in the initial order, use [single-threaded](../../../operations/settings/settings.md#settings-max_threads) `SELECT` queries.
To select data in the initial order, use [single-threaded](/docs/en/operations/settings/settings.md/#settings-max_threads) `SELECT` queries.
### Choosing a Primary Key that Differs from the Sorting Key {#choosing-a-primary-key-that-differs-from-the-sorting-key}
It is possible to specify a primary key (an expression with values that are written in the index file for each mark) that is different from the sorting key (an expression for sorting the rows in data parts). In this case the primary key expression tuple must be a prefix of the sorting key expression tuple.
This feature is helpful when using the [SummingMergeTree](../../../engines/table-engines/mergetree-family/summingmergetree.md) and
[AggregatingMergeTree](../../../engines/table-engines/mergetree-family/aggregatingmergetree.md) table engines. In a common case when using these engines, the table has two types of columns: *dimensions* and *measures*. Typical queries aggregate values of measure columns with arbitrary `GROUP BY` and filtering by dimensions. Because SummingMergeTree and AggregatingMergeTree aggregate rows with the same value of the sorting key, it is natural to add all dimensions to it. As a result, the key expression consists of a long list of columns and this list must be frequently updated with newly added dimensions.
This feature is helpful when using the [SummingMergeTree](/docs/en/engines/table-engines/mergetree-family/summingmergetree.md) and
[AggregatingMergeTree](/docs/en/engines/table-engines/mergetree-family/aggregatingmergetree.md) table engines. In a common case when using these engines, the table has two types of columns: *dimensions* and *measures*. Typical queries aggregate values of measure columns with arbitrary `GROUP BY` and filtering by dimensions. Because SummingMergeTree and AggregatingMergeTree aggregate rows with the same value of the sorting key, it is natural to add all dimensions to it. As a result, the key expression consists of a long list of columns and this list must be frequently updated with newly added dimensions.
In this case it makes sense to leave only a few columns in the primary key that will provide efficient range scans and add the remaining dimension columns to the sorting key tuple.
[ALTER](../../../sql-reference/statements/alter/index.md) of the sorting key is a lightweight operation because when a new column is simultaneously added to the table and to the sorting key, existing data parts do not need to be changed. Since the old sorting key is a prefix of the new sorting key and there is no data in the newly added column, the data is sorted by both the old and new sorting keys at the moment of table modification.
[ALTER](/docs/en/sql-reference/statements/alter/index.md) of the sorting key is a lightweight operation because when a new column is simultaneously added to the table and to the sorting key, existing data parts do not need to be changed. Since the old sorting key is a prefix of the new sorting key and there is no data in the newly added column, the data is sorted by both the old and new sorting keys at the moment of table modification.
### Use of Indexes and Partitions in Queries {#use-of-indexes-and-partitions-in-queries}
@ -342,7 +342,7 @@ In the example below, the index can’t be used.
SELECT count() FROM table WHERE CounterID = 34 OR URL LIKE '%upyachka%'
```
To check whether ClickHouse can use the index when running a query, use the settings [force_index_by_date](../../../operations/settings/settings.md#settings-force_index_by_date) and [force_primary_key](../../../operations/settings/settings.md#force-primary-key).
To check whether ClickHouse can use the index when running a query, use the settings [force_index_by_date](/docs/en/operations/settings/settings.md/#settings-force_index_by_date) and [force_primary_key](/docs/en/operations/settings/settings.md/#force-primary-key).
The key for partitioning by month allows reading only those data blocks which contain dates from the proper range. In this case, the data block may contain data for many dates (up to an entire month). Within a block, data is sorted by primary key, which might not contain the date as the first column. Because of this, using a query with only a date condition that does not specify the primary key prefix will cause more data to be read than for a single date.
@ -400,7 +400,7 @@ Stores unique values of the specified expression (no more than `max_rows` rows,
#### `ngrambf_v1(n, size_of_bloom_filter_in_bytes, number_of_hash_functions, random_seed)`
Stores a [Bloom filter](https://en.wikipedia.org/wiki/Bloom_filter) that contains all ngrams from a block of data. Works only with datatypes: [String](../../../sql-reference/data-types/string.md), [FixedString](../../../sql-reference/data-types/fixedstring.md) and [Map](../../../sql-reference/data-types/map.md). Can be used for optimization of `EQUALS`, `LIKE` and `IN` expressions.
Stores a [Bloom filter](https://en.wikipedia.org/wiki/Bloom_filter) that contains all ngrams from a block of data. Works only with datatypes: [String](/docs/en/sql-reference/data-types/string.md), [FixedString](/docs/en/sql-reference/data-types/fixedstring.md) and [Map](/docs/en/sql-reference/data-types/map.md). Can be used for optimization of `EQUALS`, `LIKE` and `IN` expressions.
- `n` — ngram size,
- `size_of_bloom_filter_in_bytes` — Bloom filter size in bytes (you can use large values here, for example, 256 or 512, because it can be compressed well).
@ -417,9 +417,11 @@ The optional `false_positive` parameter is the probability of receiving a false
Supported data types: `Int*`, `UInt*`, `Float*`, `Enum`, `Date`, `DateTime`, `String`, `FixedString`, `Array`, `LowCardinality`, `Nullable`, `UUID`, `Map`.
For `Map` data type client can specify if index should be created for keys or values using [mapKeys](../../../sql-reference/functions/tuple-map-functions.md#mapkeys) or [mapValues](../../../sql-reference/functions/tuple-map-functions.md#mapvalues) function.
For `Map` data type client can specify if index should be created for keys or values using [mapKeys](/docs/en/sql-reference/functions/tuple-map-functions.md/#mapkeys) or [mapValues](/docs/en/sql-reference/functions/tuple-map-functions.md/#mapvalues) function.
The following functions can use the filter: [equals](../../../sql-reference/functions/comparison-functions.md), [notEquals](../../../sql-reference/functions/comparison-functions.md), [in](../../../sql-reference/functions/in-functions), [notIn](../../../sql-reference/functions/in-functions), [has](../../../sql-reference/functions/array-functions#hasarr-elem), [hasAny](../../../sql-reference/functions/array-functions#hasany), [hasAll](../../../sql-reference/functions/array-functions#hasall).
There are also special-purpose and experimental indexes to support approximate nearest neighbor (ANN) queries. See [here](annindexes.md) for details.
The following functions can use the filter: [equals](/docs/en/sql-reference/functions/comparison-functions.md), [notEquals](/docs/en/sql-reference/functions/comparison-functions.md), [in](/docs/en/sql-reference/functions/in-functions), [notIn](/docs/en/sql-reference/functions/in-functions), [has](/docs/en/sql-reference/functions/array-functions#hasarr-elem), [hasAny](/docs/en/sql-reference/functions/array-functions#hasany), [hasAll](/docs/en/sql-reference/functions/array-functions#hasall).
Example of index creation for `Map` data type
@ -443,21 +445,21 @@ The `set` index can be used with all functions. Function subsets for other index
| Function (operator) / Index | primary key | minmax | ngrambf_v1 | tokenbf_v1 | bloom_filter |
|------------------------------------------------------------------------------------------------------------|-------------|--------|-------------|-------------|---------------|
| [equals (=, ==)](../../../sql-reference/functions/comparison-functions.md#function-equals) | ✔ | ✔ | ✔ | ✔ | ✔ |
| [notEquals(!=, &lt;&gt;)](../../../sql-reference/functions/comparison-functions.md#function-notequals) | ✔ | ✔ | ✔ | ✔ | ✔ |
| [like](../../../sql-reference/functions/string-search-functions.md#function-like) | ✔ | ✔ | ✔ | ✔ | ✗ |
| [notLike](../../../sql-reference/functions/string-search-functions.md#function-notlike) | ✔ | ✔ | ✔ | ✔ | ✗ |
| [startsWith](../../../sql-reference/functions/string-functions.md#startswith) | ✔ | ✔ | ✔ | ✔ | ✗ |
| [endsWith](../../../sql-reference/functions/string-functions.md#endswith) | ✗ | ✗ | ✔ | ✔ | ✗ |
| [multiSearchAny](../../../sql-reference/functions/string-search-functions.md#function-multisearchany) | ✗ | ✗ | ✔ | ✗ | ✗ |
| [in](../../../sql-reference/functions/in-functions#in-functions) | ✔ | ✔ | ✔ | ✔ | ✔ |
| [notIn](../../../sql-reference/functions/in-functions#in-functions) | ✔ | ✔ | ✔ | ✔ | ✔ |
| [less (<)](../../../sql-reference/functions/comparison-functions.md#function-less) | ✔ | ✔ | ✗ | ✗ | ✗ |
| [greater (>)](../../../sql-reference/functions/comparison-functions.md#function-greater) | ✔ | ✔ | ✗ | ✗ | ✗ |
| [lessOrEquals (<=)](../../../sql-reference/functions/comparison-functions.md#function-lessorequals) | ✔ | ✔ | ✗ | ✗ | ✗ |
| [greaterOrEquals (>=)](../../../sql-reference/functions/comparison-functions.md#function-greaterorequals) | ✔ | ✔ | ✗ | ✗ | ✗ |
| [empty](../../../sql-reference/functions/array-functions#function-empty) | ✔ | ✔ | ✗ | ✗ | ✗ |
| [notEmpty](../../../sql-reference/functions/array-functions#function-notempty) | ✔ | ✔ | ✗ | ✗ | ✗ |
| [equals (=, ==)](/docs/en/sql-reference/functions/comparison-functions.md/#function-equals) | ✔ | ✔ | ✔ | ✔ | ✔ |
| [notEquals(!=, &lt;&gt;)](/docs/en/sql-reference/functions/comparison-functions.md/#function-notequals) | ✔ | ✔ | ✔ | ✔ | ✔ |
| [like](/docs/en/sql-reference/functions/string-search-functions.md/#function-like) | ✔ | ✔ | ✔ | ✔ | ✗ |
| [notLike](/docs/en/sql-reference/functions/string-search-functions.md/#function-notlike) | ✔ | ✔ | ✔ | ✔ | ✗ |
| [startsWith](/docs/en/sql-reference/functions/string-functions.md/#startswith) | ✔ | ✔ | ✔ | ✔ | ✗ |
| [endsWith](/docs/en/sql-reference/functions/string-functions.md/#endswith) | ✗ | ✗ | ✔ | ✔ | ✗ |
| [multiSearchAny](/docs/en/sql-reference/functions/string-search-functions.md/#function-multisearchany) | ✗ | ✗ | ✔ | ✗ | ✗ |
| [in](/docs/en/sql-reference/functions/in-functions#in-functions) | ✔ | ✔ | ✔ | ✔ | ✔ |
| [notIn](/docs/en/sql-reference/functions/in-functions#in-functions) | ✔ | ✔ | ✔ | ✔ | ✔ |
| [less (<)](/docs/en/sql-reference/functions/comparison-functions.md/#function-less) | ✔ | ✔ | ✗ | ✗ | ✗ |
| [greater (>)](/docs/en/sql-reference/functions/comparison-functions.md/#function-greater) | ✔ | ✔ | ✗ | ✗ | ✗ |
| [lessOrEquals (<=)](/docs/en/sql-reference/functions/comparison-functions.md/#function-lessorequals) | ✔ | ✔ | ✗ | ✗ | ✗ |
| [greaterOrEquals (>=)](/docs/en/sql-reference/functions/comparison-functions.md/#function-greaterorequals) | ✔ | ✔ | ✗ | ✗ | ✗ |
| [empty](/docs/en/sql-reference/functions/array-functions#function-empty) | ✔ | ✔ | ✗ | ✗ | ✗ |
| [notEmpty](/docs/en/sql-reference/functions/array-functions#function-notempty) | ✔ | ✔ | ✗ | ✗ | ✗ |
| hasToken | ✗ | ✗ | ✗ | ✔ | ✗ |
Functions with a constant argument that is less than ngram size can’t be used by `ngrambf_v1` for query optimization.
@ -483,16 +485,16 @@ For example:
## Approximate Nearest Neighbor Search Indexes [experimental] {#table_engines-ANNIndex}
In addition to skip indices, there are also [Approximate Nearest Neighbor Search Indexes](../../../engines/table-engines/mergetree-family/annindexes.md).
In addition to skip indices, there are also [Approximate Nearest Neighbor Search Indexes](/docs/en/engines/table-engines/mergetree-family/annindexes.md).
## Projections {#projections}
Projections are like [materialized views](../../../sql-reference/statements/create/view.md#materialized) but defined in part-level. It provides consistency guarantees along with automatic usage in queries.
Projections are like [materialized views](/docs/en/sql-reference/statements/create/view.md/#materialized) but defined in part-level. It provides consistency guarantees along with automatic usage in queries.
:::note
When you are implementing projections you should also consider the [force_optimize_projection](../../../operations/settings/settings.md#force-optimize-projection) setting.
When you are implementing projections you should also consider the [force_optimize_projection](/docs/en/operations/settings/settings.md/#force-optimize-projection) setting.
:::
Projections are not supported in the `SELECT` statements with the [FINAL](../../../sql-reference/statements/select/from.md#select-from-final) modifier.
Projections are not supported in the `SELECT` statements with the [FINAL](/docs/en/sql-reference/statements/select/from.md/#select-from-final) modifier.
### Projection Query {#projection-query}
A projection query is what defines a projection. It implicitly selects data from the parent table.
@ -502,7 +504,7 @@ A projection query is what defines a projection. It implicitly selects data from
SELECT <column list expr> [GROUP BY] <group keys expr> [ORDER BY] <expr>
```
Projections can be modified or dropped with the [ALTER](../../../sql-reference/statements/alter/projection.md) statement.
Projections can be modified or dropped with the [ALTER](/docs/en/sql-reference/statements/alter/projection.md) statement.
### Projection Storage {#projection-storage}
Projections are stored inside the part directory. It's similar to an index but contains a subdirectory that stores an anonymous `MergeTree` table's part. The table is induced by the definition query of the projection. If there is a `GROUP BY` clause, the underlying storage engine becomes [AggregatingMergeTree](aggregatingmergetree.md), and all aggregate functions are converted to `AggregateFunction`. If there is an `ORDER BY` clause, the `MergeTree` table uses it as its primary key expression. During the merge process the projection part is merged via its storage's merge routine. The checksum of the parent table's part is combined with the projection's part. Other maintenance jobs are similar to skip indices.
@ -524,7 +526,7 @@ Determines the lifetime of values.
The `TTL` clause can be set for the whole table and for each individual column. Table-level `TTL` can also specify the logic of automatic moving data between disks and volumes, or recompressing parts where all the data has been expired.
Expressions must evaluate to [Date](../../../sql-reference/data-types/date.md) or [DateTime](../../../sql-reference/data-types/datetime.md) data type.
Expressions must evaluate to [Date](/docs/en/sql-reference/data-types/date.md) or [DateTime](/docs/en/sql-reference/data-types/datetime.md) data type.
**Syntax**
@ -535,7 +537,7 @@ TTL time_column
TTL time_column + interval
```
To define `interval`, use [time interval](../../../sql-reference/operators/index.md#operators-datetime) operators, for example:
To define `interval`, use [time interval](/docs/en/sql-reference/operators/index.md#operators-datetime) operators, for example:
``` sql
TTL date_time + INTERVAL 1 MONTH
@ -682,11 +684,11 @@ Data with an expired `TTL` is removed when ClickHouse merges data parts.
When ClickHouse detects that data is expired, it performs an off-schedule merge. To control the frequency of such merges, you can set `merge_with_ttl_timeout`. If the value is too low, it will perform many off-schedule merges that may consume a lot of resources.
If you perform the `SELECT` query between merges, you may get expired data. To avoid it, use the [OPTIMIZE](../../../sql-reference/statements/optimize.md) query before `SELECT`.
If you perform the `SELECT` query between merges, you may get expired data. To avoid it, use the [OPTIMIZE](/docs/en/sql-reference/statements/optimize.md) query before `SELECT`.
**See Also**
- [ttl_only_drop_parts](../../../operations/settings/settings.md#ttl_only_drop_parts) setting
- [ttl_only_drop_parts](/docs/en/operations/settings/settings.md/#ttl_only_drop_parts) setting
## Using Multiple Block Devices for Data Storage {#table_engine-mergetree-multiple-volumes}
@ -695,16 +697,16 @@ If you perform the `SELECT` query between merges, you may get expired data. To a
`MergeTree` family table engines can store data on multiple block devices. For example, it can be useful when the data of a certain table are implicitly split into “hot” and “cold”. The most recent data is regularly requested but requires only a small amount of space. On the contrary, the fat-tailed historical data is requested rarely. If several disks are available, the “hot” data may be located on fast disks (for example, NVMe SSDs or in memory), while the “cold” data - on relatively slow ones (for example, HDD).
Data part is the minimum movable unit for `MergeTree`-engine tables. The data belonging to one part are stored on one disk. Data parts can be moved between disks in the background (according to user settings) as well as by means of the [ALTER](../../../sql-reference/statements/alter/partition.md#alter_move-partition) queries.
Data part is the minimum movable unit for `MergeTree`-engine tables. The data belonging to one part are stored on one disk. Data parts can be moved between disks in the background (according to user settings) as well as by means of the [ALTER](/docs/en/sql-reference/statements/alter/partition.md/#alter_move-partition) queries.
### Terms {#terms}
- Disk — Block device mounted to the filesystem.
- Default disk — Disk that stores the path specified in the [path](../../../operations/server-configuration-parameters/settings.md#server_configuration_parameters-path) server setting.
- Default disk — Disk that stores the path specified in the [path](/docs/en/operations/server-configuration-parameters/settings.md/#server_configuration_parameters-path) server setting.
- Volume — Ordered set of equal disks (similar to [JBOD](https://en.wikipedia.org/wiki/Non-RAID_drive_architectures)).
- Storage policy — Set of volumes and the rules for moving data between them.
The names given to the described entities can be found in the system tables, [system.storage_policies](../../../operations/system-tables/storage_policies.md#system_tables-storage_policies) and [system.disks](../../../operations/system-tables/disks.md#system_tables-disks). To apply one of the configured storage policies for a table, use the `storage_policy` setting of `MergeTree`-engine family tables.
The names given to the described entities can be found in the system tables, [system.storage_policies](/docs/en/operations/system-tables/storage_policies.md/#system_tables-storage_policies) and [system.disks](/docs/en/operations/system-tables/disks.md/#system_tables-disks). To apply one of the configured storage policies for a table, use the `storage_policy` setting of `MergeTree`-engine family tables.
### Configuration {#table_engine-mergetree-multiple-volumes_configure}
@ -851,16 +853,16 @@ SETTINGS storage_policy = 'moving_from_ssd_to_hdd'
The `default` storage policy implies using only one volume, which consists of only one disk given in `<path>`.
You could change storage policy after table creation with [ALTER TABLE ... MODIFY SETTING] query, new policy should include all old disks and volumes with same names.
The number of threads performing background moves of data parts can be changed by [background_move_pool_size](../../../operations/settings/settings.md#background_move_pool_size) setting.
The number of threads performing background moves of data parts can be changed by [background_move_pool_size](/docs/en/operations/settings/settings.md/#background_move_pool_size) setting.
### Details {#details}
In the case of `MergeTree` tables, data is getting to disk in different ways:
- As a result of an insert (`INSERT` query).
- During background merges and [mutations](../../../sql-reference/statements/alter/index.md#alter-mutations).
- During background merges and [mutations](/docs/en/sql-reference/statements/alter/index.md#alter-mutations).
- When downloading from another replica.
- As a result of partition freezing [ALTER TABLE … FREEZE PARTITION](../../../sql-reference/statements/alter/partition.md#alter_freeze-partition).
- As a result of partition freezing [ALTER TABLE … FREEZE PARTITION](/docs/en/sql-reference/statements/alter/partition.md/#alter_freeze-partition).
In all these cases except for mutations and partition freezing, a part is stored on a volume and a disk according to the given storage policy:
@ -870,16 +872,16 @@ In all these cases except for mutations and partition freezing, a part is stored
Under the hood, mutations and partition freezing make use of [hard links](https://en.wikipedia.org/wiki/Hard_link). Hard links between different disks are not supported, therefore in such cases the resulting parts are stored on the same disks as the initial ones.
In the background, parts are moved between volumes on the basis of the amount of free space (`move_factor` parameter) according to the order the volumes are declared in the configuration file.
Data is never transferred from the last one and into the first one. One may use system tables [system.part_log](../../../operations/system-tables/part_log.md#system_tables-part-log) (field `type = MOVE_PART`) and [system.parts](../../../operations/system-tables/parts.md#system_tables-parts) (fields `path` and `disk`) to monitor background moves. Also, the detailed information can be found in server logs.
Data is never transferred from the last one and into the first one. One may use system tables [system.part_log](/docs/en/operations/system-tables/part_log.md/#system_tables-part-log) (field `type = MOVE_PART`) and [system.parts](/docs/en/operations/system-tables/parts.md/#system_tables-parts) (fields `path` and `disk`) to monitor background moves. Also, the detailed information can be found in server logs.
User can force moving a part or a partition from one volume to another using the query [ALTER TABLE … MOVE PART\|PARTITION … TO VOLUME\|DISK …](../../../sql-reference/statements/alter/partition.md#alter_move-partition), all the restrictions for background operations are taken into account. The query initiates a move on its own and does not wait for background operations to be completed. User will get an error message if not enough free space is available or if any of the required conditions are not met.
User can force moving a part or a partition from one volume to another using the query [ALTER TABLE … MOVE PART\|PARTITION … TO VOLUME\|DISK …](/docs/en/sql-reference/statements/alter/partition.md/#alter_move-partition), all the restrictions for background operations are taken into account. The query initiates a move on its own and does not wait for background operations to be completed. User will get an error message if not enough free space is available or if any of the required conditions are not met.
Moving data does not interfere with data replication. Therefore, different storage policies can be specified for the same table on different replicas.
After the completion of background merges and mutations, old parts are removed only after a certain amount of time (`old_parts_lifetime`).
During this time, they are not moved to other volumes or disks. Therefore, until the parts are finally removed, they are still taken into account for evaluation of the occupied disk space.
User can assign new big parts to different disks of a [JBOD](https://en.wikipedia.org/wiki/Non-RAID_drive_architectures) volume in a balanced way using the [min_bytes_to_rebalance_partition_over_jbod](../../../operations/settings/merge-tree-settings.md#min-bytes-to-rebalance-partition-over-jbod) setting.
User can assign new big parts to different disks of a [JBOD](https://en.wikipedia.org/wiki/Non-RAID_drive_architectures) volume in a balanced way using the [min_bytes_to_rebalance_partition_over_jbod](/docs/en/operations/settings/merge-tree-settings.md/#min-bytes-to-rebalance-partition-over-jbod) setting.
## Using S3 for Data Storage {#table_engine-mergetree-s3}

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@ -20,7 +20,7 @@ Replication works at the level of an individual table, not the entire server. A
Replication does not depend on sharding. Each shard has its own independent replication.
Compressed data for `INSERT` and `ALTER` queries is replicated (for more information, see the documentation for [ALTER](../../../sql-reference/statements/alter/index.md#query_language_queries_alter)).
Compressed data for `INSERT` and `ALTER` queries is replicated (for more information, see the documentation for [ALTER](/docs/en/sql-reference/statements/alter/index.md#query_language_queries_alter)).
`CREATE`, `DROP`, `ATTACH`, `DETACH` and `RENAME` queries are executed on a single server and are not replicated:
@ -28,9 +28,9 @@ Compressed data for `INSERT` and `ALTER` queries is replicated (for more informa
- The `DROP TABLE` query deletes the replica located on the server where the query is run.
- The `RENAME` query renames the table on one of the replicas. In other words, replicated tables can have different names on different replicas.
ClickHouse uses [ClickHouse Keeper](../../../guides/sre/keeper/clickhouse-keeper.md) for storing replicas meta information. It is possible to use ZooKeeper version 3.4.5 or newer, but ClickHouse Keeper is recommended.
ClickHouse uses [ClickHouse Keeper](/docs/en/guides/sre/keeper/clickhouse-keeper.md) for storing replicas meta information. It is possible to use ZooKeeper version 3.4.5 or newer, but ClickHouse Keeper is recommended.
To use replication, set parameters in the [zookeeper](../../../operations/server-configuration-parameters/settings.md#server-settings_zookeeper) server configuration section.
To use replication, set parameters in the [zookeeper](/docs/en/operations/server-configuration-parameters/settings.md/#server-settings_zookeeper) server configuration section.
:::warning
Don’t neglect the security setting. ClickHouse supports the `digest` [ACL scheme](https://zookeeper.apache.org/doc/current/zookeeperProgrammers.html#sc_ZooKeeperAccessControl) of the ZooKeeper security subsystem.
@ -95,21 +95,21 @@ You can specify any existing ZooKeeper cluster and the system will use a directo
If ZooKeeper isn’t set in the config file, you can’t create replicated tables, and any existing replicated tables will be read-only.
ZooKeeper is not used in `SELECT` queries because replication does not affect the performance of `SELECT` and queries run just as fast as they do for non-replicated tables. When querying distributed replicated tables, ClickHouse behavior is controlled by the settings [max_replica_delay_for_distributed_queries](../../../operations/settings/settings.md#settings-max_replica_delay_for_distributed_queries) and [fallback_to_stale_replicas_for_distributed_queries](../../../operations/settings/settings.md#settings-fallback_to_stale_replicas_for_distributed_queries).
ZooKeeper is not used in `SELECT` queries because replication does not affect the performance of `SELECT` and queries run just as fast as they do for non-replicated tables. When querying distributed replicated tables, ClickHouse behavior is controlled by the settings [max_replica_delay_for_distributed_queries](/docs/en/operations/settings/settings.md/#settings-max_replica_delay_for_distributed_queries) and [fallback_to_stale_replicas_for_distributed_queries](/docs/en/operations/settings/settings.md/#settings-fallback_to_stale_replicas_for_distributed_queries).
For each `INSERT` query, approximately ten entries are added to ZooKeeper through several transactions. (To be more precise, this is for each inserted block of data; an INSERT query contains one block or one block per `max_insert_block_size = 1048576` rows.) This leads to slightly longer latencies for `INSERT` compared to non-replicated tables. But if you follow the recommendations to insert data in batches of no more than one `INSERT` per second, it does not create any problems. The entire ClickHouse cluster used for coordinating one ZooKeeper cluster has a total of several hundred `INSERTs` per second. The throughput on data inserts (the number of rows per second) is just as high as for non-replicated data.
For very large clusters, you can use different ZooKeeper clusters for different shards. However, from our experience this has not proven necessary based on production clusters with approximately 300 servers.
Replication is asynchronous and multi-master. `INSERT` queries (as well as `ALTER`) can be sent to any available server. Data is inserted on the server where the query is run, and then it is copied to the other servers. Because it is asynchronous, recently inserted data appears on the other replicas with some latency. If part of the replicas are not available, the data is written when they become available. If a replica is available, the latency is the amount of time it takes to transfer the block of compressed data over the network. The number of threads performing background tasks for replicated tables can be set by [background_schedule_pool_size](../../../operations/settings/settings.md#background_schedule_pool_size) setting.
Replication is asynchronous and multi-master. `INSERT` queries (as well as `ALTER`) can be sent to any available server. Data is inserted on the server where the query is run, and then it is copied to the other servers. Because it is asynchronous, recently inserted data appears on the other replicas with some latency. If part of the replicas are not available, the data is written when they become available. If a replica is available, the latency is the amount of time it takes to transfer the block of compressed data over the network. The number of threads performing background tasks for replicated tables can be set by [background_schedule_pool_size](/docs/en/operations/settings/settings.md/#background_schedule_pool_size) setting.
`ReplicatedMergeTree` engine uses a separate thread pool for replicated fetches. Size of the pool is limited by the [background_fetches_pool_size](../../../operations/settings/settings.md#background_fetches_pool_size) setting which can be tuned with a server restart.
`ReplicatedMergeTree` engine uses a separate thread pool for replicated fetches. Size of the pool is limited by the [background_fetches_pool_size](/docs/en/operations/settings/settings.md/#background_fetches_pool_size) setting which can be tuned with a server restart.
By default, an INSERT query waits for confirmation of writing the data from only one replica. If the data was successfully written to only one replica and the server with this replica ceases to exist, the stored data will be lost. To enable getting confirmation of data writes from multiple replicas, use the `insert_quorum` option.
Each block of data is written atomically. The INSERT query is divided into blocks up to `max_insert_block_size = 1048576` rows. In other words, if the `INSERT` query has less than 1048576 rows, it is made atomically.
Data blocks are deduplicated. For multiple writes of the same data block (data blocks of the same size containing the same rows in the same order), the block is only written once. The reason for this is in case of network failures when the client application does not know if the data was written to the DB, so the `INSERT` query can simply be repeated. It does not matter which replica INSERTs were sent to with identical data. `INSERTs` are idempotent. Deduplication parameters are controlled by [merge_tree](../../../operations/server-configuration-parameters/settings.md#server_configuration_parameters-merge_tree) server settings.
Data blocks are deduplicated. For multiple writes of the same data block (data blocks of the same size containing the same rows in the same order), the block is only written once. The reason for this is in case of network failures when the client application does not know if the data was written to the DB, so the `INSERT` query can simply be repeated. It does not matter which replica INSERTs were sent to with identical data. `INSERTs` are idempotent. Deduplication parameters are controlled by [merge_tree](/docs/en/operations/server-configuration-parameters/settings.md/#server_configuration_parameters-merge_tree) server settings.
During replication, only the source data to insert is transferred over the network. Further data transformation (merging) is coordinated and performed on all the replicas in the same way. This minimizes network usage, which means that replication works well when replicas reside in different datacenters. (Note that duplicating data in different datacenters is the main goal of replication.)
@ -165,7 +165,7 @@ CREATE TABLE table_name
</details>
As the example shows, these parameters can contain substitutions in curly brackets. The substituted values are taken from the [macros](../../../operations/server-configuration-parameters/settings.md#macros) section of the configuration file.
As the example shows, these parameters can contain substitutions in curly brackets. The substituted values are taken from the [macros](/docs/en/operations/server-configuration-parameters/settings.md/#macros) section of the configuration file.
Example:
@ -295,10 +295,10 @@ If the data in ClickHouse Keeper was lost or damaged, you can save data by movin
**See Also**
- [background_schedule_pool_size](../../../operations/settings/settings.md#background_schedule_pool_size)
- [background_fetches_pool_size](../../../operations/settings/settings.md#background_fetches_pool_size)
- [execute_merges_on_single_replica_time_threshold](../../../operations/settings/settings.md#execute-merges-on-single-replica-time-threshold)
- [max_replicated_fetches_network_bandwidth](../../../operations/settings/merge-tree-settings.md#max_replicated_fetches_network_bandwidth)
- [max_replicated_sends_network_bandwidth](../../../operations/settings/merge-tree-settings.md#max_replicated_sends_network_bandwidth)
- [background_schedule_pool_size](/docs/en/operations/settings/settings.md/#background_schedule_pool_size)
- [background_fetches_pool_size](/docs/en/operations/settings/settings.md/#background_fetches_pool_size)
- [execute_merges_on_single_replica_time_threshold](/docs/en/operations/settings/settings.md/#execute-merges-on-single-replica-time-threshold)
- [max_replicated_fetches_network_bandwidth](/docs/en/operations/settings/merge-tree-settings.md/#max_replicated_fetches_network_bandwidth)
- [max_replicated_sends_network_bandwidth](/docs/en/operations/settings/merge-tree-settings.md/#max_replicated_sends_network_bandwidth)
[Original article](https://clickhouse.com/docs/en/operations/table_engines/replication/) <!--hide-->

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@ -6,10 +6,10 @@ sidebar_label: Join
# Join Table Engine
Optional prepared data structure for usage in [JOIN](../../../sql-reference/statements/select/join.md#select-join) operations.
Optional prepared data structure for usage in [JOIN](/docs/en/sql-reference/statements/select/join.md/#select-join) operations.
:::note
This is not an article about the [JOIN clause](../../../sql-reference/statements/select/join.md#select-join) itself.
This is not an article about the [JOIN clause](/docs/en/sql-reference/statements/select/join.md/#select-join) itself.
:::
## Creating a Table {#creating-a-table}
@ -22,17 +22,17 @@ CREATE TABLE [IF NOT EXISTS] [db.]table_name [ON CLUSTER cluster]
) ENGINE = Join(join_strictness, join_type, k1[, k2, ...])
```
See the detailed description of the [CREATE TABLE](../../../sql-reference/statements/create/table.md#create-table-query) query.
See the detailed description of the [CREATE TABLE](/docs/en/sql-reference/statements/create/table.md/#create-table-query) query.
## Engine Parameters
### join_strictness
`join_strictness` – [JOIN strictness](../../../sql-reference/statements/select/join.md#select-join-types).
`join_strictness` – [JOIN strictness](/docs/en/sql-reference/statements/select/join.md/#select-join-types).
### join_type
`join_type` – [JOIN type](../../../sql-reference/statements/select/join.md#select-join-types).
`join_type` – [JOIN type](/docs/en/sql-reference/statements/select/join.md/#select-join-types).
### Key columns
@ -55,11 +55,11 @@ You can use `INSERT` queries to add data to the `Join`-engine tables. If the tab
Main use-cases for `Join`-engine tables are following:
- Place the table to the right side in a `JOIN` clause.
- Call the [joinGet](../../../sql-reference/functions/other-functions.md#joinget) function, which lets you extract data from the table the same way as from a dictionary.
- Call the [joinGet](/docs/en/sql-reference/functions/other-functions.md/#joinget) function, which lets you extract data from the table the same way as from a dictionary.
### Deleting Data {#deleting-data}
`ALTER DELETE` queries for `Join`-engine tables are implemented as [mutations](../../../sql-reference/statements/alter/index.md#mutations). `DELETE` mutation reads filtered data and overwrites data of memory and disk.
`ALTER DELETE` queries for `Join`-engine tables are implemented as [mutations](/docs/en/sql-reference/statements/alter/index.md#mutations). `DELETE` mutation reads filtered data and overwrites data of memory and disk.
### Limitations and Settings {#join-limitations-and-settings}
@ -67,30 +67,30 @@ When creating a table, the following settings are applied:
#### join_use_nulls
[join_use_nulls](../../../operations/settings/settings.md#join_use_nulls)
[join_use_nulls](/docs/en/operations/settings/settings.md/#join_use_nulls)
#### max_rows_in_join
[max_rows_in_join](../../../operations/settings/query-complexity.md#settings-max_rows_in_join)
[max_rows_in_join](/docs/en/operations/settings/query-complexity.md/#settings-max_rows_in_join)
#### max_bytes_in_join
[max_bytes_in_join](../../../operations/settings/query-complexity.md#settings-max_bytes_in_join)
[max_bytes_in_join](/docs/en/operations/settings/query-complexity.md/#settings-max_bytes_in_join)
#### join_overflow_mode
[join_overflow_mode](../../../operations/settings/query-complexity.md#settings-join_overflow_mode)
[join_overflow_mode](/docs/en/operations/settings/query-complexity.md/#settings-join_overflow_mode)
#### join_any_take_last_row
[join_any_take_last_row](../../../operations/settings/settings.md#settings-join_any_take_last_row)
[join_any_take_last_row](/docs/en/operations/settings/settings.md/#settings-join_any_take_last_row)
#### join_use_nulls
[persistent](../../../operations/settings/settings.md#persistent)
[persistent](/docs/en/operations/settings/settings.md/#persistent)
The `Join`-engine tables can’t be used in `GLOBAL JOIN` operations.
The `Join`-engine allows to specify [join_use_nulls](../../../operations/settings/settings.md#join_use_nulls) setting in the `CREATE TABLE` statement. [SELECT](../../../sql-reference/statements/select/index.md) query should have the same `join_use_nulls` value.
The `Join`-engine allows to specify [join_use_nulls](/docs/en/operations/settings/settings.md/#join_use_nulls) setting in the `CREATE TABLE` statement. [SELECT](/docs/en/sql-reference/statements/select/index.md) query should have the same `join_use_nulls` value.
## Usage Examples {#example}

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@ -1,8 +1,7 @@
position: 10
position: 1
label: 'Example Datasets'
collapsible: true
collapsed: true
link:
type: generated-index
title: Example Datasets
slug: /en/getting-started/example-datasets
type: doc
id: en/getting-started/example-datasets/

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