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Add an "argisrow" field to NullTest nodes, following a plan made way back in

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8.2beta but never carried out.  This avoids repetitive tests of whether the
argument is of scalar or composite type.  Also, be a bit more paranoid about
composite arguments in some places where we previously weren't checking.
This commit is contained in:
Tom Lane
2010-01-01 23:03:10 +00:00
parent 29c4ad9829
commit 7839d35991
14 changed files with 41 additions and 30 deletions
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3
src/backend/parser/parse_expr.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/parse_expr.c,v 1.251 2009/12/15 17:57:47 tgl Exp $
* $PostgreSQL: pgsql/src/backend/parser/parse_expr.c,v 1.252 2010/01/01 23:03:10 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -276,6 +276,7 @@ transformExpr(ParseState *pstate, Node *expr)
n->arg = (Expr *) transformExpr(pstate, (Node *) n->arg);
/* the argument can be any type, so don't coerce it */
n->argisrow = type_is_rowtype(exprType((Node *) n->arg));
result = expr;
break;
}