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Make SubPlan nodes carry the result's typmod as well as datatype OID. This is

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for consistency with the (relatively) recent addition of typmod to SubLink.
An example of why it's a good idea is to be seen in the recent "failed to
locate grouping columns" bug, which wouldn't have happened if a SubPlan
exposed the same typmod info as the SubLink it was derived from.

This could be back-patched, since it doesn't affect any on-disk data format,
but for the moment it doesn't seem necessary to do so.
This commit is contained in:
Tom Lane
2009-03-10 22:09:26 +00:00
parent 4886dc92e0
commit dcf3902f02
6 changed files with 55 additions and 26 deletions
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3
src/backend/nodes/copyfuncs.c
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@@ -15,7 +15,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.425 2009/02/25 03:30:37 tgl Exp $
* $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.426 2009/03/10 22:09:25 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1113,6 +1113,7 @@ _copySubPlan(SubPlan *from)
COPY_NODE_FIELD(paramIds);
COPY_SCALAR_FIELD(plan_id);
COPY_SCALAR_FIELD(firstColType);
COPY_SCALAR_FIELD(firstColTypmod);
COPY_SCALAR_FIELD(useHashTable);
COPY_SCALAR_FIELD(unknownEqFalse);
COPY_NODE_FIELD(setParam);