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*: add metadata lock when using the plan cache (#51897) #52955
*: add metadata lock when using the plan cache (#51897) #52955
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LGTM
[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: Benjamin2037, qw4990, tangenta The full list of commands accepted by this bot can be found here. The pull request process is described here
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Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## release-8.1 #52955 +/- ##
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Coverage ? 71.4194%
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Files ? 1463
Lines ? 421770
Branches ? 0
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Hits ? 301226
Misses ? 100207
Partials ? 20337
Flags with carried forward coverage won't be shown. Click here to find out more.
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/retest |
This is an automated cherry-pick of #51897
What problem does this PR solve?
Issue Number: close #51407
Problem Summary:
When executing the prepared statement from the plan cache, tidb doesn't add the metadata lock, which may cause data-index inconsistency.
What changed and how does it work?
PREPARE
.Check List
Tests
Side effects
Documentation
Release note
Please refer to Release Notes Language Style Guide to write a quality release note.