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*: check delete unique key's handle to handle corner case (#52975) #53701
*: check delete unique key's handle to handle corner case (#52975) #53701
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Signed-off-by: ti-chi-bot <ti-community-prow-bot@tidb.io>
@wjhuang2016 please fix the conflict |
please fix the conflict @wjhuang2016 |
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## release-6.5 #53701 +/- ##
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Coverage ? 73.7785%
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Files ? 1096
Lines ? 352437
Branches ? 0
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Hits ? 260023
Misses ? 75784
Partials ? 16630 |
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LGTM
[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: Benjamin2037, 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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[LGTM Timeline notifier]Timeline:
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This is an automated cherry-pick of #52975
What problem does this PR solve?
Issue Number: close #52914
Problem Summary:
Take the case from the issue, if an insert is executed during delete only, there is no record on the temporary index.
Before the merge process, a delete operation may delete the index key value(generated by ingest) unexpectedly.
To avoid this problem, we need to check if the delete value's handle is the same as we want to delete.
If not, it means that the value we want to delete is covered by another value already, which shouldn't be deleted again.
What changed and how does it work?
Check List
Tests
Side effects
Documentation
Release note
Please refer to Release Notes Language Style Guide to write a quality release note.