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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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34
src/backend/executor/execProcnode.c
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@ -12,7 +12,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/execProcnode.c,v 1.26 2001/03/22 06:16:12 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/execProcnode.c,v 1.27 2001/09/18 01:59:06 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -78,6 +78,7 @@
#include "postgres.h"
#include "executor/executor.h"
#include "executor/instrument.h"
#include "executor/nodeAgg.h"
#include "executor/nodeAppend.h"
#include "executor/nodeGroup.h"
@ -123,6 +124,10 @@ ExecInitNode(Plan *node, EState *estate, Plan *parent)
if (node == NULL)
return FALSE;
/* Set up instrumentation for this node if the parent has it */
if (!node->instrument && parent && parent->instrument)
node->instrument = InstrAlloc();
foreach(subp, node->initPlan)
{
result = ExecInitSubPlan((SubPlan *) lfirst(subp), estate, node);
@ -132,7 +137,6 @@ ExecInitNode(Plan *node, EState *estate, Plan *parent)
switch (nodeTag(node))
{
/*
* control nodes
*/
@ -218,6 +222,7 @@ ExecInitNode(Plan *node, EState *estate, Plan *parent)
elog(ERROR, "ExecInitNode: node type %d unsupported",
(int) nodeTag(node));
result = FALSE;
break;
}
if (result != FALSE)
@ -257,12 +262,14 @@ ExecProcNode(Plan *node, Plan *parent)
if (node->chgParam != NULL) /* something changed */
ExecReScan(node, NULL, parent); /* let ReScan handle this */
if (node->instrument)
InstrStartNode(node->instrument);
switch (nodeTag(node))
{
/*
* control nodes
*/
/*
* control nodes
*/
case T_Result:
result = ExecResult((Result *) node);
break;
@ -344,8 +351,12 @@ ExecProcNode(Plan *node, Plan *parent)
elog(ERROR, "ExecProcNode: node type %d unsupported",
(int) nodeTag(node));
result = NULL;
break;
}
if (node->instrument)
InstrStopNode(node->instrument, !TupIsNull(result));
return result;
}
@ -357,7 +368,6 @@ ExecCountSlotsNode(Plan *node)
switch (nodeTag(node))
{
/*
* control nodes
*/
@ -463,10 +473,9 @@ ExecEndNode(Plan *node, Plan *parent)
switch (nodeTag(node))
{
/*
* control nodes
*/
/*
* control nodes
*/
case T_Result:
ExecEndResult((Result *) node);
break;
@ -549,6 +558,9 @@ ExecEndNode(Plan *node, Plan *parent)
(int) nodeTag(node));
break;
}
if (node->instrument)
InstrEndLoop(node->instrument);
}