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Old planner() becomes union_planner(); new planner() makes initialization

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of some global variables to support subselects and calls union_planner().
Calls to SS_replace_correlation_vars() and SS_process_sublinks() in
query_planner() before planning.
Get rid of #ifdef INDEXSCAN_PATCH in createplan.c.
This commit is contained in:
Vadim B. Mikheev
1998-02-13 03:37:04 +00:00
parent a3f1c3673f
commit 4a6e3a6a9f
6 changed files with 625 additions and 20 deletions
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16
src/backend/optimizer/plan/setrefs.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/setrefs.c,v 1.17 1998/02/10 04:01:13 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/setrefs.c,v 1.18 1998/02/13 03:37:02 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@ -405,7 +405,21 @@ replace_clause_joinvar_refs(Expr *clause,
leftvar,
rightvar));
}
else if (is_subplan(clause))
{
((Expr*) clause)->args =
replace_subclause_joinvar_refs(((Expr*) clause)->args,
outer_tlist,
inner_tlist);
((SubPlan*) ((Expr*) clause)->oper)->sublink->oper =
replace_subclause_joinvar_refs(((SubPlan*) ((Expr*) clause)->oper)->sublink->oper,
outer_tlist,
inner_tlist);
return ((List*) clause);
}
/* shouldn't reach here */
elog (ERROR, "replace_clause_joinvar_refs: unsupported clause %d",
nodeTag (clause));
return NULL;
}