executor: support checking schemaVer before staleness transaction begins #22679
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/cc @djshow832 @xhebox |
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/label sig/infra |
ti-srebot
approved these changes
Feb 4, 2021
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/merge |
ti-srebot
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/run-all-tests |
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What problem does this PR solve?
Issue Number: ref #22427
Problem Summary:
There will be compatible problem between ddl changing and staelness transaction.
What is changed and how it works?
This request compare the schemaVer by the stale startTS with current schemaVer in order to avoid this problem as a temporary solution.
Check List
Tests
Release note