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Get rid of long-since-vestigial Iter node type, in favor of adding a

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returns-set boolean field in Func and Oper nodes.  This allows cleaner,
more reliable tests for expressions returning sets in the planner and
parser.  For example, a WHERE clause returning a set is now detected
and complained of in the parser, not only at runtime.
This commit is contained in:
Tom Lane
2002-05-12 23:43:04 +00:00
parent f9e4f611a1
commit 3389a110d4
33 changed files with 297 additions and 676 deletions
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6
src/backend/utils/adt/ruleutils.c
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@@ -3,7 +3,7 @@
* back to source text
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/ruleutils.c,v 1.103 2002/05/12 20:10:04 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/ruleutils.c,v 1.104 2002/05/12 23:43:03 tgl Exp $
*
* This software is copyrighted by Jan Wieck - Hamburg.
*
@@ -1673,10 +1673,6 @@ get_rule_expr(Node *node, deparse_context *context)
get_agg_expr((Aggref *) node, context);
break;
case T_Iter:
get_rule_expr(((Iter *) node)->iterexpr, context);
break;
case T_ArrayRef:
{
ArrayRef *aref = (ArrayRef *) node;