database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-08-25 20:23:07 +03:00
Code Activity

Phase 1 of read-only-plans project: cause executor state nodes to point

Browse Source 
to plan nodes, not vice-versa.  All executor state nodes now inherit from
struct PlanState.  Copying of plan trees has been simplified by not
storing a list of SubPlans in Plan nodes (eliminating duplicate links).
The executor still needs such a list, but it can build it during
ExecutorStart since it has to scan the plan tree anyway.
No initdb forced since no stored-on-disk structures changed, but you
will need a full recompile because of node-numbering changes.
This commit is contained in:
Tom Lane
2002-12-05 15:50:39 +00:00
parent 0f3b83edfa
commit 1fd0c59e25
71 changed files with 3032 additions and 3758 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
src/include/executor/nodeSubplan.h
View File

@@ -2,18 +2,26 @@
*
* nodeSubplan.h
*
*
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: nodeSubplan.h,v 1.12 2002/12/05 15:50:38 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef NODESUBPLAN_H
#define NODESUBPLAN_H
#include "nodes/plannodes.h"
#include "nodes/execnodes.h"
extern Datum ExecSubPlan(SubPlan *node, List *pvar, ExprContext *econtext,
extern SubPlanState *ExecInitSubPlan(SubPlan *node, EState *estate);
extern Datum ExecSubPlan(SubPlanState *node, List *pvar, ExprContext *econtext,
bool *isNull);
extern bool ExecInitSubPlan(SubPlan *node, EState *estate, Plan *parent);
extern void ExecReScanSetParamPlan(SubPlan *node, Plan *parent);
extern void ExecSetParamPlan(SubPlan *node, ExprContext *econtext);
extern void ExecEndSubPlan(SubPlan *node);
extern void ExecEndSubPlan(SubPlanState *node);
extern void ExecReScanSetParamPlan(SubPlanState *node, PlanState *parent);
extern void ExecSetParamPlan(SubPlanState *node, ExprContext *econtext);
#endif /* NODESUBPLAN_H */