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Further tweaking of parsetree & plantree representation of SubLinks.

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Simplify SubLink by storing just a List of operator OIDs, instead of
a list of incomplete OpExprs --- that was a bizarre and bulky choice,
with no redeeming social value since we have to build new OpExprs
anyway when forming the plan tree.
This commit is contained in:
Tom Lane
2003-01-10 21:08:15 +00:00
parent 36ea26793a
commit e69785debf
17 changed files with 407 additions and 246 deletions
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11
src/backend/nodes/equalfuncs.c
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@@ -18,7 +18,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.178 2003/01/09 20:50:50 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.179 2003/01/10 21:08:10 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -287,10 +287,10 @@ static bool
_equalSubLink(SubLink *a, SubLink *b)
{
COMPARE_SCALAR_FIELD(subLinkType);
COMPARE_SCALAR_FIELD(operIsEquals);
COMPARE_SCALAR_FIELD(useOr);
COMPARE_NODE_FIELD(lefthand);
COMPARE_NODE_FIELD(oper);
COMPARE_NODE_FIELD(operName);
COMPARE_INTLIST_FIELD(operOids);
COMPARE_NODE_FIELD(subselect);
return true;
@@ -301,10 +301,13 @@ _equalSubPlan(SubPlan *a, SubPlan *b)
{
COMPARE_SCALAR_FIELD(subLinkType);
COMPARE_SCALAR_FIELD(useOr);
COMPARE_NODE_FIELD(oper);
COMPARE_NODE_FIELD(exprs);
COMPARE_INTLIST_FIELD(paramIds);
/* should compare plans, but have to settle for comparing plan IDs */
COMPARE_SCALAR_FIELD(plan_id);
COMPARE_NODE_FIELD(rtable);
COMPARE_SCALAR_FIELD(useHashTable);
COMPARE_SCALAR_FIELD(unknownEqFalse);
COMPARE_INTLIST_FIELD(setParam);
COMPARE_INTLIST_FIELD(parParam);
COMPARE_NODE_FIELD(args);