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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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3
src/pl/plpgsql/src/pl_exec.c
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@@ -3,7 +3,7 @@
* procedural language
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/pl/plpgsql/src/pl_exec.c,v 1.71 2002/11/30 21:25:08 tgl Exp $
* $Header: /cvsroot/pgsql/src/pl/plpgsql/src/pl_exec.c,v 1.72 2002/12/05 15:50:39 tgl Exp $
*
* This software is copyrighted by Jan Wieck - Hamburg.
*
@@ -3583,7 +3583,6 @@ exec_simple_check_plan(PLpgSQL_expr * expr)
if (plan->lefttree != NULL ||
plan->righttree != NULL ||
plan->initPlan != NULL ||
plan->subPlan != NULL ||
plan->qual != NULL ||
((Result *) plan)->resconstantqual != NULL)
return;