ddl: Exchange partition rollback (#45877)#45980
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ti-chi-bot[bot] merged 13 commits intopingcap:release-6.5from Sep 11, 2023
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ddl: Exchange partition rollback (#45877)#45980ti-chi-bot[bot] merged 13 commits intopingcap:release-6.5from
ti-chi-bot[bot] merged 13 commits intopingcap:release-6.5from
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Signed-off-by: ti-chi-bot <ti-community-prow-bot@tidb.io>
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Codecov Report
Additional details and impacted files@@ Coverage Diff @@
## release-6.5 #45980 +/- ##
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Coverage ? 73.6591%
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Files ? 1084
Lines ? 348322
Branches ? 0
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Hits ? 256571
Misses ? 75264
Partials ? 16487 |
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Sep 12, 2023
close pingcap#45791, close pingcap#45920 Signed-off-by: Yang Keao <yangkeao@chunibyo.icu>
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This is an automated cherry-pick of #45877
What problem does this PR solve?
Issue Number: close #45791, close #45920
Problem Summary:
The first schema change state adds a restriction to the non-partitioned table, so that it can only write (insert/update) rows that would fit into the partition to be exchanged with. But if something fails afterwards, this is never cleared.
What is changed and how it works?
Adding rollback, in case of user cancellation or failure during the DDL execution, after the first state change.
Check List
Tests
Manual test for upgrade scenario, revert the changes made to
ddl/ddl_worker.go(which sets thediffstruct) and run the tests manually.Side effects
Documentation
Release note
Please refer to Release Notes Language Style Guide to write a quality release note.