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Fix oversights in processing of LIMIT expressions during planning.

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This commit is contained in:
Tom Lane 2004-05-11 13:15:15 +00:00
parent 1697568d57
commit bef764029b
2 changed files with 18 additions and 4 deletions
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12
src/backend/optimizer/plan/setrefs.c
View File

@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/optimizer/plan/setrefs.c,v 1.100 2004/01/06 04:31:01 tgl Exp $
* $PostgreSQL: pgsql/src/backend/optimizer/plan/setrefs.c,v 1.101 2004/05/11 13:15:15 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -171,7 +171,6 @@ set_plan_references(Plan *plan, List *rtable)
case T_Sort:
case T_Unique:
case T_SetOp:
case T_Limit:
/*
* These plan types don't actually bother to evaluate their
@ -184,6 +183,15 @@ set_plan_references(Plan *plan, List *rtable)
* the plan tree!
*/
break;
case T_Limit:
/*
* Like the plan types above, Limit doesn't evaluate its
* tlist or quals. It does have live expressions for
* limit/offset, however.
*/
fix_expr_references(plan, ((Limit *) plan)->limitOffset);
fix_expr_references(plan, ((Limit *) plan)->limitCount);
break;
case T_Agg:
case T_Group:
set_uppernode_references(plan, (Index) 0);

10
src/backend/optimizer/plan/subselect.c
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/optimizer/plan/subselect.c,v 1.88 2004/02/03 17:34:03 tgl Exp $
* $PostgreSQL: pgsql/src/backend/optimizer/plan/subselect.c,v 1.89 2004/05/11 13:15:15 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -1063,6 +1063,13 @@ finalize_plan(Plan *plan, List *rtable,
&context);
break;
case T_Limit:
finalize_primnode(((Limit *) plan)->limitOffset,
&context);
finalize_primnode(((Limit *) plan)->limitCount,
&context);
break;
case T_Hash:
case T_Agg:
case T_SeqScan:
@ -1070,7 +1077,6 @@ finalize_plan(Plan *plan, List *rtable,
case T_Sort:
case T_Unique:
case T_SetOp:
case T_Limit:
case T_Group:
break;