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Set partitioned_rels appropriately when UNION ALL is used.

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In most cases, this omission won't matter, because the appropriate
locks will have been acquired during parse/plan or by AcquireExecutorLocks.
But it's a bug all the same.

Report by Ashutosh Bapat.  Patch by me, reviewed by Amit Langote.

Discussion: http://postgr.es/m/CAFjFpRdHb_ZnoDTuBXqrudWXh3H1ibLkr6nHsCFT96fSK4DXtA@mail.gmail.com
This commit is contained in:
Robert Haas
2017-09-14 10:43:44 -04:00
parent 1ab973ab60
commit 1555566d9e
2 changed files with 40 additions and 8 deletions
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6
src/backend/optimizer/plan/planner.c
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@ -6076,7 +6076,8 @@ plan_cluster_use_sort(Oid tableOid, Oid indexOid)
* Returns a list of the RT indexes of the partitioned child relations
* with rti as the root parent RT index.
*
* Note: Only call this function on RTEs known to be partitioned tables.
* Note: This function might get called even for range table entries that
* are not partitioned tables; in such a case, it will simply return NIL.
*/
List *
get_partitioned_child_rels(PlannerInfo *root, Index rti)
@ -6095,8 +6096,5 @@ get_partitioned_child_rels(PlannerInfo *root, Index rti)
}
}
/* The root partitioned table is included as a child rel */
Assert(list_length(result) >= 1);
return result;
}