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EXPLAIN ANALYZE feature to measure and show actual runtimes and tuple

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counts alongside the planner's estimates.  By Martijn van Oosterhout,
with some further work by Tom Lane.
This commit is contained in:
Tom Lane
2001-09-18 01:59:07 +00:00
parent 27d2890b87
commit 89fa551808
18 changed files with 413 additions and 87 deletions
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19
src/backend/executor/execMain.c
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@ -27,7 +27,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/execMain.c,v 1.147 2001/09/17 00:29:10 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/execMain.c,v 1.148 2001/09/18 01:59:06 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -868,7 +868,7 @@ EndPlan(Plan *plan, EState *estate)
/*
* shut down the node-type-specific query processing
*/
ExecEndNode(plan, plan);
ExecEndNode(plan, NULL);
/*
* destroy the executor "tuple" table.
@ -973,16 +973,15 @@ ExecutePlan(EState *estate,
/*
* Execute the plan and obtain a tuple
*/
/* at the top level, the parent of a plan (2nd arg) is itself */
lnext: ;
if (estate->es_useEvalPlan)
{
slot = EvalPlanQualNext(estate);
if (TupIsNull(slot))
slot = ExecProcNode(plan, plan);
slot = ExecProcNode(plan, NULL);
}
else
slot = ExecProcNode(plan, plan);
slot = ExecProcNode(plan, NULL);
/*
* if the tuple is null, then we assume there is nothing more to
@ -1758,7 +1757,7 @@ EvalPlanQual(EState *estate, Index rti, ItemPointer tid)
oldepq = (evalPlanQual *) epqstate->es_evalPlanQual;
Assert(oldepq->rti != 0);
/* stop execution */
ExecEndNode(epq->plan, epq->plan);
ExecEndNode(epq->plan, NULL);
ExecDropTupleTable(epqstate->es_tupleTable, true);
epqstate->es_tupleTable = NULL;
heap_freetuple(epqstate->es_evTuple[epq->rti - 1]);
@ -1853,7 +1852,7 @@ EvalPlanQual(EState *estate, Index rti, ItemPointer tid)
if (endNode)
{
/* stop execution */
ExecEndNode(epq->plan, epq->plan);
ExecEndNode(epq->plan, NULL);
ExecDropTupleTable(epqstate->es_tupleTable, true);
epqstate->es_tupleTable = NULL;
}
@ -1897,7 +1896,7 @@ EvalPlanQualNext(EState *estate)
Assert(epq->rti != 0);
lpqnext:;
slot = ExecProcNode(epq->plan, epq->plan);
slot = ExecProcNode(epq->plan, NULL);
/*
* No more tuples for this PQ. Continue previous one.
@ -1905,7 +1904,7 @@ lpqnext:;
if (TupIsNull(slot))
{
/* stop execution */
ExecEndNode(epq->plan, epq->plan);
ExecEndNode(epq->plan, NULL);
ExecDropTupleTable(epqstate->es_tupleTable, true);
epqstate->es_tupleTable = NULL;
heap_freetuple(epqstate->es_evTuple[epq->rti - 1]);
@ -1946,7 +1945,7 @@ EndEvalPlanQual(EState *estate)
for (;;)
{
/* stop execution */
ExecEndNode(epq->plan, epq->plan);
ExecEndNode(epq->plan, NULL);
ExecDropTupleTable(epqstate->es_tupleTable, true);
epqstate->es_tupleTable = NULL;
if (epqstate->es_evTuple[epq->rti - 1] != NULL)