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Checks for ALTER TABLE ... SPLIT/MERGE PARTITIONS ... commands

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Check that the target partition actually belongs to the parent table.

Reported-by: Alexander Lakhin
Discussion: https://postgr.es/m/cd842601-cf1a-9806-f7b7-d2509b93ba61%40gmail.com
Author: Dmitry Koval
This commit is contained in:
Alexander Korotkov
2024-04-10 01:47:00 +03:00
parent b1b13d2b52
commit c99ef1811a
6 changed files with 111 additions and 21 deletions
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12
src/backend/commands/tablecmds.c
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@@ -21223,12 +21223,6 @@ ATExecSplitPartition(List **wqueue, AlteredTableInfo *tab, Relation rel,
*/
splitRel = table_openrv(cmd->name, AccessExclusiveLock);
if (splitRel->rd_rel->relkind != RELKIND_RELATION)
ereport(ERROR,
(errcode(ERRCODE_WRONG_OBJECT_TYPE),
errmsg("cannot split non-table partition \"%s\"",
RelationGetRelationName(splitRel))));
splitRelOid = RelationGetRelid(splitRel);
/* Check descriptions of new partitions. */
@@ -21463,12 +21457,6 @@ ATExecMergePartitions(List **wqueue, AlteredTableInfo *tab, Relation rel,
*/
mergingPartition = table_openrv(name, AccessExclusiveLock);
if (mergingPartition->rd_rel->relkind != RELKIND_RELATION)
ereport(ERROR,
(errcode(ERRCODE_WRONG_OBJECT_TYPE),
errmsg("cannot merge non-table partition \"%s\"",
RelationGetRelationName(mergingPartition))));
/*
* Checking that two partitions have the same name was before, in
* function transformPartitionCmdForMerge().