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Get rid of some old and crufty global variables in the planner. When

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this code was last gone over, there wasn't really any alternative to
globals because we didn't have the PlannerInfo struct being passed all
through the planner code.  Now that we do, we can restructure things
to avoid non-reentrancy.  I'm fooling with this because otherwise I'd
have had to add another global variable for the planned compact
range table list.
This commit is contained in:
Tom Lane
2007-02-19 07:03:34 +00:00
parent 90c301aaa9
commit 7c5e5439d2
18 changed files with 293 additions and 223 deletions
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14
src/include/optimizer/subselect.h
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@@ -5,7 +5,7 @@
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/optimizer/subselect.h,v 1.28 2007/01/05 22:19:56 momjian Exp $
* $PostgreSQL: pgsql/src/include/optimizer/subselect.h,v 1.29 2007/02/19 07:03:34 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -15,16 +15,10 @@
#include "nodes/plannodes.h"
#include "nodes/relation.h"
extern Index PlannerQueryLevel; /* level of current query */
extern List *PlannerInitPlan; /* init subplans for current query */
extern List *PlannerParamList; /* to keep track of cross-level Params */
extern int PlannerPlanId; /* to assign unique ID to subquery plans */
extern Node *convert_IN_to_join(PlannerInfo *root, SubLink *sublink);
extern Node *SS_replace_correlation_vars(Node *expr);
extern Node *SS_process_sublinks(Node *expr, bool isQual);
extern void SS_finalize_plan(Plan *plan, List *rtable);
extern Node *SS_replace_correlation_vars(PlannerInfo *root, Node *expr);
extern Node *SS_process_sublinks(PlannerInfo *root, Node *expr, bool isQual);
extern void SS_finalize_plan(PlannerInfo *root, Plan *plan);
extern Param *SS_make_initplan_from_plan(PlannerInfo *root, Plan *plan,
Oid resulttype, int32 resulttypmod);