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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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10
src/backend/executor/execTuples.c
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@ -15,7 +15,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/execTuples.c,v 1.60 2002/09/28 20:00:19 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/execTuples.c,v 1.61 2002/12/05 15:50:32 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -483,11 +483,11 @@ ExecSetSlotDescriptorIsNew(TupleTableSlot *slot, /* slot to change */
* ----------------
*/
void
ExecInitResultTupleSlot(EState *estate, CommonState *commonstate)
ExecInitResultTupleSlot(EState *estate, PlanState *planstate)
{
INIT_SLOT_DEFS;
INIT_SLOT_ALLOC;
commonstate->cs_ResultTupleSlot = slot;
planstate->ps_ResultTupleSlot = slot;
}
/* ----------------
@ -495,11 +495,11 @@ ExecInitResultTupleSlot(EState *estate, CommonState *commonstate)
* ----------------
*/
void
ExecInitScanTupleSlot(EState *estate, CommonScanState *commonscanstate)
ExecInitScanTupleSlot(EState *estate, ScanState *scanstate)
{
INIT_SLOT_DEFS;
INIT_SLOT_ALLOC;
commonscanstate->css_ScanTupleSlot = slot;
scanstate->ss_ScanTupleSlot = slot;
}
/* ----------------