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executor: fix the incorrect untouch used in optimistic transactions (#30447) #30911
executor: fix the incorrect untouch used in optimistic transactions (#30447) #30911
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[REVIEW NOTIFICATION] This pull request has been approved by:
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/run-all-tests |
@cfzjywxk please accept the invitation then you can push to the cherry-pick pull requests. Comment with |
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session/session.go
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"crypto/tls" | |||
"encoding/json" | |||
"fmt" | |||
"github.com/pingcap/tidb/store/driver/txn" |
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This pull request has been accepted and is ready to merge. Commit hash: 0b45cbd3fb97fb44c8c18794f716930e4746ee17
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/merge |
This pull request has been accepted and is ready to merge. Commit hash: 6815aee
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/merge |
This pull request has been accepted and is ready to merge. Commit hash: 254eae0
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Code Coverage Details: https://codecov.io/github/pingcap/tidb/commit/4a1ecdb43640995664a8eec6dcfed20d77fcdae5 |
/merge |
This pull request has been accepted and is ready to merge. Commit hash: da676c4
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/run-mysql-test |
/run-unit-test |
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/run-mysql-test |
cherry-pick #30447 to release-5.2
You can switch your code base to this Pull Request by using git-extras:
# In tidb repo: git pr https://github.com/pingcap/tidb/pull/30911
After apply modifications, you can push your change to this PR via:
What problem does this PR solve?
Issue Number: close #30410
Problem Summary:
When the optimistic transaction is used, the
untouched key
optimization is not compatible with lazy existence check and results in data inconsistency.What is changed and how it works?
Disable the
untouched
optimization for this situation when thepresumeNotExist
flag is set.Check List
Tests
Side effects
Documentation
Release note