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Ignore partitioned tables when processing ON COMMIT DELETE ROWS

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Those tables have no physical storage, making this option unusable with
partition trees as at commit time an actual truncation was attempted.
There are still issues with the way ON COMMIT actions are done when
mixing several action types, however this impacts as well inheritance
trees, so this issue will be dealt with later.

Reported-by: Rajkumar Raghuwanshi
Author: Amit Langote
Reviewed-by: Michael Paquier, Tom Lane
Discussion: https://postgr.es/m/CAKcux6mhgcjSiB_egqEAEFgX462QZtncU8QCAJ2HZwM-wWGVew@mail.gmail.com
This commit is contained in:
Michael Paquier
2018-11-05 09:14:33 +09:00
parent fa534b411c
commit 4bc772e2af
3 changed files with 38 additions and 0 deletions
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7
src/backend/catalog/heap.c
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@@ -3181,6 +3181,13 @@ heap_truncate_one_rel(Relation rel)
{
Oid toastrelid;
/*
* Truncate the relation. Partitioned tables have no storage, so there is
* nothing to do for them here.
*/
if (rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
return;
/* Truncate the actual file (and discard buffers) */
RelationTruncate(rel, 0);