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authorMichael Paquier2024-01-24 05:20:08 +0000
committerMichael Paquier2024-01-24 05:20:08 +0000
commit51193e7a7d333e2f19048c97a336da436b7d97e9 (patch)
treef7114ea9d7c26b692923be7b3f368ba9b0831ad2 /src/backend/utils/adt/xml.c
parent8b31b689f4db9fca726a8d1bab20b89ebb3fa0b1 (diff)
Fix ALTER TABLE .. ADD COLUMN with complex inheritance trees
This command, when used to add a column on a parent table with a complex inheritance tree, tried to update multiple times the same tuple in pg_attribute for a child table when incrementing attinhcount, causing failures with "tuple already updated by self" because of a missing CommandCounterIncrement() between two updates. This exists for a rather long time, so backpatch all the way down. Reported-by: Alexander Lakhin Author: Tender Wang Reviewed-by: Richard Guo Discussion: https://postgr.es/m/[email protected] Backpatch-through: 12
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