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Fix UNION/INTERSECT/EXCEPT so that when two inputs being merged have

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same data type and same typmod, we show that typmod as the output
typmod, rather than generic -1.  This responds to several complaints
over the past few years about UNIONs unexpectedly dropping length or
precision info.
This commit is contained in:
Tom Lane
2006-08-10 02:36:29 +00:00
parent e860e746e1
commit 0ee26100b6
11 changed files with 79 additions and 35 deletions
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3
src/backend/nodes/outfuncs.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.280 2006/08/02 01:59:45 joe Exp $
* $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.281 2006/08/10 02:36:28 tgl Exp $
*
* NOTES
* Every node type that can appear in stored rules' parsetrees *must*
@@ -1574,6 +1574,7 @@ _outSetOperationStmt(StringInfo str, SetOperationStmt *node)
WRITE_NODE_FIELD(larg);
WRITE_NODE_FIELD(rarg);
WRITE_NODE_FIELD(colTypes);
WRITE_NODE_FIELD(colTypmods);
}
static void