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

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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
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4
src/include/tcop/pquery.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pquery.h,v 1.22 2002/09/04 20:31:45 momjian Exp $
* $Id: pquery.h,v 1.23 2002/12/05 15:50:39 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -21,8 +21,6 @@
extern void ProcessQuery(Query *parsetree, Plan *plan, CommandDest dest,
char *completionTag);
extern EState *CreateExecutorState(void);
extern Portal PreparePortal(char *portalName);
#endif /* PQUERY_H */