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ddl: fix DST times for adding index (#47425) #47447

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This is an automated cherry-pick of #47425

What problem does this PR solve?

Issue Number: close #47426, ref #46033

Problem Summary:

I did not consider DST values in #46055. As a result, the timezone names are always ignored. It may cause data inconsistency when TiDB encounters DST values during adding index.

What is changed and how it works?

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

Signed-off-by: ti-chi-bot <ti-community-prow-bot@tidb.io>
@ti-chi-bot ti-chi-bot added ok-to-test Indicates a PR is ready to be tested. release-note-none Denotes a PR that doesn't merit a release note. size/S Denotes a PR that changes 10-29 lines, ignoring generated files. type/cherry-pick-for-release-6.5 This PR is cherry-picked to release-6.5 from a source PR. labels Oct 8, 2023
@ti-chi-bot ti-chi-bot added the cherry-pick-approved Cherry pick PR approved by release team. label Oct 8, 2023
@ti-chi-bot ti-chi-bot bot added size/XL Denotes a PR that changes 500-999 lines, ignoring generated files. and removed size/S Denotes a PR that changes 10-29 lines, ignoring generated files. do-not-merge/cherry-pick-not-approved labels Oct 8, 2023
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LGTM

@ti-chi-bot ti-chi-bot bot added the needs-1-more-lgtm Indicates a PR needs 1 more LGTM. label Oct 8, 2023
@ti-chi-bot ti-chi-bot bot added size/S Denotes a PR that changes 10-29 lines, ignoring generated files. and removed size/XL Denotes a PR that changes 500-999 lines, ignoring generated files. labels Oct 12, 2023
@ti-chi-bot ti-chi-bot bot added the lgtm label Oct 12, 2023
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ti-chi-bot bot commented Oct 12, 2023

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Benjamin2037, wjhuang2016

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@ti-chi-bot ti-chi-bot bot added approved and removed needs-1-more-lgtm Indicates a PR needs 1 more LGTM. labels Oct 12, 2023
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ti-chi-bot bot commented Oct 12, 2023

[LGTM Timeline notifier]

Timeline:

  • 2023-10-08 07:40:59.740827893 +0000 UTC m=+951657.327938023: ☑️ agreed by Benjamin2037.
  • 2023-10-12 09:52:49.135092612 +0000 UTC m=+1305166.722202760: ☑️ agreed by wjhuang2016.

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/retest

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codecov bot commented Nov 20, 2023

Codecov Report

❗ No coverage uploaded for pull request base (release-6.5@62a0305). Click here to learn what that means.
The diff coverage is n/a.

Additional details and impacted files
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##             release-6.5     #47447   +/-   ##
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  Files                  ?       1085           
  Lines                  ?     348930           
  Branches               ?          0           
================================================
  Hits                   ?     256979           
  Misses                 ?      75474           
  Partials               ?      16477           

@ti-chi-bot ti-chi-bot bot merged commit 51b3779 into pingcap:release-6.5 Nov 20, 2023
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4 participants