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planner: not use the latest schema when plan-cache is off (#30959)#40046

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planner: not use the latest schema when plan-cache is off (#30959)#40046
ti-chi-bot merged 4 commits into
pingcap:release-5.1from
ti-chi-bot:cherry-pick-30959-to-release-5.1

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@ti-chi-bot ti-chi-bot commented Dec 19, 2022

This is an automated cherry-pick of #30959

Signed-off-by: you06 you1474600@gmail.com

What problem does this PR solve?

Issue Number: close #30940

Problem Summary:

What is changed and how it works?

Execute statements may use different schemas in building plan and execution, this issue is fixed in master by #26759, but hard to cherry-pick to 5.0 branch. Since plan cache is an experimental feature in 5.0, this PR skips fetching the latest schema for non-plan-cache statements.

Check List

Tests

  • Unit test
  • Integration test
  • Manual test (add detailed scripts or steps below)
  • No code

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

fix a bug that concurrent DML and DDL may cause panic.

you06 added 3 commits December 19, 2022 12:07
@you06 @ti-chi-bot
do not use the latest schema for cache miss
887be3d 
Signed-off-by: you06 <you1474600@gmail.com>
@you06 @ti-chi-bot
add test and comment
6b00ab1 
Signed-off-by: you06 <you1474600@gmail.com>
@you06 @ti-chi-bot
format code
c9c9f3d 
Signed-off-by: you06 <you1474600@gmail.com>
@ti-chi-bot ti-chi-bot mentioned this pull request Dec 19, 2022
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ti-chi-bot commented Dec 19, 2022 •
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[REVIEW NOTIFICATION]

This pull request has been approved by:

  • AilinKid
  • MyonKeminta
  • cfzjywxk

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
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@ti-chi-bot ti-chi-bot added cherry-pick-approved Cherry pick PR approved by release team. release-note Denotes a PR that will be considered when it comes time to generate release notes. do-not-merge/cherry-pick-not-approved require-LGT3 Indicates that the PR requires three LGTM. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. type/cherry-pick-for-release-5.1 and removed do-not-merge/cherry-pick-not-approved labels Dec 19, 2022
AilinKid
AilinKid approved these changes Dec 19, 2022
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LGTM

@ti-chi-bot ti-chi-bot added the status/LGT1 Indicates that a PR has LGTM 1. label Dec 19, 2022
@ti-chi-bot ti-chi-bot added status/LGT2 Indicates that a PR has LGTM 2. and removed status/LGT1 Indicates that a PR has LGTM 1. labels Dec 19, 2022
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you06 commented Dec 19, 2022

/cherry-pick-invite

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make tidy
d2c711f 
Signed-off-by: AilinKid <314806019@qq.com>
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you06 commented Dec 19, 2022

/merge

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ti-chi-bot commented Dec 19, 2022

@you06: /merge is only allowed for the committers, you can assign this pull request to the committer in list by filling /assign @committer in the comment to help merge this pull request.

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AilinKid commented Dec 19, 2022

/merge

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ti-chi-bot commented Dec 19, 2022

@AilinKid: /merge in this pull request requires 3 approval(s).

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ti-chi-bot commented Dec 19, 2022

@you06: Thanks for your review. The bot only counts approvals from reviewers and higher roles in list, but you're still welcome to leave your comments.

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@ti-chi-bot ti-chi-bot added status/LGT3 The PR has already had 3 LGTM. and removed status/LGT2 Indicates that a PR has LGTM 2. labels Dec 19, 2022
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MyonKeminta commented Dec 19, 2022

/merge

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ti-chi-bot commented Dec 19, 2022

This pull request has been accepted and is ready to merge.

DetailsCommit hash: d2c711f

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Dec 19, 2022
@ti-chi-bot ti-chi-bot merged commit 48145ba into pingcap:release-5.1 Dec 19, 2022
@you06 you06 mentioned this pull request Dec 21, 2022
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@ti-chi-bot ti-chi-bot deleted the cherry-pick-30959-to-release-5.1 branch April 15, 2025 08:02
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@cfzjywxk cfzjywxk cfzjywxk approved these changes

@you06 you06 you06 approved these changes

@MyonKeminta MyonKeminta MyonKeminta approved these changes

@AilinKid AilinKid AilinKid approved these changes

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cherry-pick-approved Cherry pick PR approved by release team. release-note Denotes a PR that will be considered when it comes time to generate release notes. require-LGT3 Indicates that the PR requires three LGTM. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. status/can-merge Indicates a PR has been approved by a committer. status/LGT3 The PR has already had 3 LGTM. type/cherry-pick-for-release-5.1

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