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New analyzer pass to optimize in single value #61564

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merged 12 commits into from Mar 25, 2024

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liuneng1994
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@liuneng1994 liuneng1994 commented Mar 19, 2024

Changelog category (leave one):

  • Performance Improvement

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

add a new analyzer pass to optimize in single value

A new pass rule.
convert

 SELECT * from test where x IN (1)

to

SELECT * from test where x = 1

convert

 SELECT * from test where x NOT IN (1)

to

SELECT * from test where x != 1

This conversion can achieve better performance when there is only one value.

Information about CI checks: https://clickhouse.com/docs/en/development/continuous-integration/

@antonio2368 antonio2368 added the can be tested Allows running workflows for external contributors label Mar 19, 2024
@robot-ch-test-poll1 robot-ch-test-poll1 added the pr-performance Pull request with some performance improvements label Mar 19, 2024
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robot-ch-test-poll1 commented Mar 19, 2024

This is an automated comment for commit 97bd6ec with description of existing statuses. It's updated for the latest CI running

✅ Click here to open a full report in a separate page

Successful checks
Check nameDescriptionStatus
A SyncThere's no description for the check yet, please add it to tests/ci/ci_config.py:CHECK_DESCRIPTIONS✅ success
AST fuzzerRuns randomly generated queries to catch program errors. The build type is optionally given in parenthesis. If it fails, ask a maintainer for help✅ success
CI runningA meta-check that indicates the running CI. Normally, it's in success or pending state. The failed status indicates some problems with the PR✅ success
ClickBenchRuns [ClickBench](https://github.com/ClickHouse/ClickBench/) with instant-attach table✅ success
ClickHouse build checkBuilds ClickHouse in various configurations for use in further steps. You have to fix the builds that fail. Build logs often has enough information to fix the error, but you might have to reproduce the failure locally. The cmake options can be found in the build log, grepping for cmake. Use these options and follow the general build process✅ success
Compatibility checkChecks that clickhouse binary runs on distributions with old libc versions. If it fails, ask a maintainer for help✅ success
Docker keeper imageThe check to build and optionally push the mentioned image to docker hub✅ success
Docker server imageThe check to build and optionally push the mentioned image to docker hub✅ success
Docs checkBuilds and tests the documentation✅ success
Fast testNormally this is the first check that is ran for a PR. It builds ClickHouse and runs most of stateless functional tests, omitting some. If it fails, further checks are not started until it is fixed. Look at the report to see which tests fail, then reproduce the failure locally as described here✅ success
Flaky testsChecks if new added or modified tests are flaky by running them repeatedly, in parallel, with more randomization. Functional tests are run 100 times with address sanitizer, and additional randomization of thread scheduling. Integrational tests are run up to 10 times. If at least once a new test has failed, or was too long, this check will be red. We don't allow flaky tests, read the doc✅ success
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Performance ComparisonMeasure changes in query performance. The performance test report is described in detail here. In square brackets are the optional part/total tests✅ success
Stateful testsRuns stateful functional tests for ClickHouse binaries built in various configurations -- release, debug, with sanitizers, etc✅ success
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Stress testRuns stateless functional tests concurrently from several clients to detect concurrency-related errors✅ success
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@yariks5s yariks5s self-assigned this Mar 19, 2024
@yariks5s yariks5s added the analyzer Issues and pull-requests related to new analyzer label Mar 19, 2024
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There are a lot of failures regarding type mismatch and applying equal to an integer and a list

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image

@liuneng1994
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There are a lot of failures regarding type mismatch and applying equal to an integer and a list

I added error handling logic. If resolveFunction fails, the conversion will be abandoned.

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good in general, described my thoughts below

@@ -0,0 +1,11 @@
#pragma once
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What is the purpose of creating a .h files for equals and notEquals? I think we can avoid this behaviour.

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I will also use it for other subsequent optimizations, which can be better reused through .h

select '-------------------';
explain query tree select * from test where x not in ('a') SETTINGS allow_experimental_analyzer = 1;
select '-------------------';
select * from test where x not in (NULL) SETTINGS allow_experimental_analyzer = 1;
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also good to check explain query for this query and other cases, that do not support this conversion (x in array and x in tuple)

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done

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03010_read_system_parts_table_test is currently broken, will reload CI once it's fixed

@yariks5s yariks5s merged commit 20a45b4 into ClickHouse:master Mar 25, 2024
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@robot-clickhouse robot-clickhouse added the pr-synced-to-cloud The PR is synced to the cloud repo label Mar 25, 2024
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This improvement has introduced many problems:

I'm reverting it and removing it from 23.3. Please reintroduce it with proper fixes and settings.

Algunenano added a commit to Algunenano/ClickHouse that referenced this pull request Apr 1, 2024
…_in_single_value"

This reverts commit 20a45b4, reversing
changes made to a642f4d.
Algunenano added a commit that referenced this pull request Apr 1, 2024
Revert "Merge pull request #61564 from liuneng1994/optimize_in_single_value"
robot-ch-test-poll4 added a commit that referenced this pull request Apr 1, 2024
…6521f977ca930e3f33d3347b5b199

Cherry pick #62135 to 24.3: Revert "Merge pull request #61564 from liuneng1994/optimize_in_single_value"
robot-clickhouse added a commit that referenced this pull request Apr 1, 2024
robot-ch-test-poll added a commit that referenced this pull request Apr 1, 2024
Backport #62135 to 24.3: Revert "Merge pull request #61564 from liuneng1994/optimize_in_single_value"
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liuneng1994 commented Apr 2, 2024

I will fix it, and add a new settings. Maybe I need to think about how to do type checking or conversion correctly.

liuneng1994 added a commit to liuneng1994/ClickHouse that referenced this pull request Apr 2, 2024
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