Add a flag for table access method to force exclusive write #969
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reshke
reviewed
Feb 27, 2025
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what's scenario need ? |
Concurrently INSERT/DELETE/UPDATE tuples in a table is considered safe in heap/AO/CO. But it's not always true. For some implementations, concurrently write that is unsafe requires to hold a big lock for exclusive write. |
This commit adds a flag in table access method to force exclusive write. The feature allows writing of a table, i.e. insert/delete/ update, to be not concurrently safe.
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This commit adds a flag in table access method to force exclusive write. The feature allows writing of a table, i.e. insert/delete/ update, to be not concurrently safe.
What does this PR do?
Type of Change
Breaking Changes
Test Plan
make installcheckmake -C src/test installcheck-cbdb-parallelImpact
Performance:
User-facing changes:
Dependencies:
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