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[WIP] executor: add hash join v2 #53128

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@windtalker windtalker commented May 9, 2024

What problem does this PR solve?

Issue Number: ref #53127

Problem Summary:

What changed and how does it work?

Design doc: #53196
Currently, only inner join and left outer join is supported.

Check List

Tests

  • Unit test
  • Integration test
  • Manual test (add detailed scripts or steps below)
  • No need to test
    • I checked and no code files have been changed.

Side effects

  • Performance regression: Consumes more CPU
  • Performance regression: Consumes more Memory
  • Breaking backward compatibility

Documentation

  • Affects user behaviors
  • Contains syntax changes
  • Contains variable changes
  • Contains experimental features
  • Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

Add new hash join implementation, which should be 2x-5x times than orignal hash join.

@ti-chi-bot ti-chi-bot bot added release-note do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. labels May 9, 2024
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@ti-chi-bot ti-chi-bot bot added sig/planner SIG: Planner size/XXL Denotes a PR that changes 1000+ lines, ignoring generated files. labels May 9, 2024
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windtalker and others added 23 commits May 11, 2024 17:06
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codecov bot commented May 11, 2024

Codecov Report

Attention: Patch coverage is 8.89769% with 2529 lines in your changes are missing coverage. Please review.

Project coverage is 48.9068%. Comparing base (ce74191) to head (0e0bc88).
Report is 2 commits behind head on master.

Additional details and impacted files
@@                Coverage Diff                @@
##             master     #53128         +/-   ##
=================================================
- Coverage   72.4267%   48.9068%   -23.5200%     
=================================================
  Files          1492       1411         -81     
  Lines        429231     408158      -21073     
=================================================
- Hits         310878     199617     -111261     
- Misses        99087     190416      +91329     
+ Partials      19266      18125       -1141     
Flag Coverage Δ
integration 48.9068% <8.8976%> (?)
tiprow_ft ?
unit ?

Flags with carried forward coverage won't be shown. Click here to find out more.

Components Coverage Δ
dumpling ∅ <ø> (∅)
parser ∅ <ø> (∅)
br 23.7167% <ø> (-17.7236%) ⬇️

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ti-chi-bot bot commented May 12, 2024

@windtalker: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name Commit Details Required Rerun command
idc-jenkins-ci-tidb/unit-test 0e0bc88 link true /test unit-test

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close as duplicated with #53208

@windtalker windtalker closed this May 13, 2024
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