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planner: fix missing array clone when building table filter for mv index access path #52613

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merged 2 commits into from Apr 15, 2024

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What problem does this PR solve?

Issue Number: close #52609

Problem Summary:

The slices.Delete() below will unexpectedly modify the input allConds.

What changed and how does it work?

Use slices.Clone() to make sure a new array is allocated.

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.

None

@ti-chi-bot ti-chi-bot bot added release-note-none do-not-merge/needs-triage-completed size/M Denotes a PR that changes 30-99 lines, ignoring generated files. sig/planner SIG: Planner and removed do-not-merge/needs-triage-completed labels Apr 15, 2024
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/retest

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@YangKeao YangKeao left a comment

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LGTM

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ti-chi-bot bot commented Apr 15, 2024

[LGTM Timeline notifier]

Timeline:

  • 2024-04-15 11:51:02.425501951 +0000 UTC m=+252481.536548400: ☑️ agreed by YangKeao.
  • 2024-04-15 14:44:24.804561547 +0000 UTC m=+262883.915607996: ☑️ agreed by AilinKid.

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codecov bot commented Apr 15, 2024

Codecov Report

Merging #52613 (77da4c3) into master (f2fb909) will increase coverage by 2.3661%.
Report is 6 commits behind head on master.
The diff coverage is 100.0000%.

Additional details and impacted files
@@               Coverage Diff                @@
##             master     #52613        +/-   ##
================================================
+ Coverage   72.3397%   74.7058%   +2.3661%     
================================================
  Files          1470       1470                
  Lines        427158     434844      +7686     
================================================
+ Hits         309005     324854     +15849     
+ Misses        98883      89774      -9109     
- Partials      19270      20216       +946     
Flag Coverage Δ
integration 48.9138% <100.0000%> (?)
unit 71.1754% <100.0000%> (-0.0524%) ⬇️

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

Components Coverage Δ
dumpling 53.9957% <ø> (ø)
parser ∅ <ø> (∅)
br 49.7527% <ø> (+8.6661%) ⬆️

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ti-chi-bot bot commented Apr 15, 2024

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: AilinKid, winoros, YangKeao

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@ti-chi-bot ti-chi-bot bot merged commit a0da76d into pingcap:master Apr 15, 2024
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In response to a cherrypick label: new pull request created to branch release-8.1: #52621.

ti-chi-bot bot pushed a commit that referenced this pull request Apr 15, 2024
3AceShowHand pushed a commit to 3AceShowHand/tidb that referenced this pull request Apr 16, 2024
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missing where condition lead to wrong query result
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