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Fix assertions with RI triggers in heap_update and heap_delete.

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If the tuple being updated is not visible to the crosscheck snapshot,
we return TM_Updated but the assertions would not hold in that case.
Move them to before the cross-check.

Fixes bug #17893. Backpatch to all supported versions.

Author: Alexander Lakhin
Backpatch-through: 12
Discussion: https://www.postgresql.org/message-id/17893-35847009eec517b5%40postgresql.org
This commit is contained in:
Heikki Linnakangas
2023-11-28 11:59:09 +02:00
parent cd34247489
commit 60f227316c
4 changed files with 64 additions and 20 deletions
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4
src/include/access/tableam.h
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@@ -1479,8 +1479,8 @@ table_multi_insert(Relation rel, TupleTableSlot **slots, int nslots,
* TM_BeingModified (the last only possible if wait == false).
*
* In the failure cases, the routine fills *tmfd with the tuple's t_ctid,
* t_xmax, and, if possible, and, if possible, t_cmax. See comments for
* struct TM_FailureData for additional info.
* t_xmax, and, if possible, t_cmax. See comments for struct
* TM_FailureData for additional info.
*/
static inline TM_Result
table_tuple_delete(Relation rel, ItemPointer tid, CommandId cid,