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Improve EXPLAIN ANALYZE to show the time spent in each trigger when

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executing a statement that fires triggers.  Formerly this time was
included in "Total runtime" but not otherwise accounted for.
As a side benefit, we avoid re-opening relations when firing non-deferred
AFTER triggers, because the trigger code can re-use the main executor's
ResultRelInfo data structure.
This commit is contained in:
Tom Lane
2005-03-25 21:58:00 +00:00
parent 08890b407e
commit adb1a6e95b
16 changed files with 403 additions and 143 deletions
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10
src/backend/executor/instrument.c
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@ -7,7 +7,7 @@
* Copyright (c) 2001-2005, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/instrument.c,v 1.10 2005/03/20 22:27:51 tgl Exp $
* $PostgreSQL: pgsql/src/backend/executor/instrument.c,v 1.11 2005/03/25 21:57:58 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -18,13 +18,13 @@
#include "executor/instrument.h"
/* Allocate new instrumentation structure */
/* Allocate new instrumentation structure(s) */
Instrumentation *
InstrAlloc(void)
InstrAlloc(int n)
{
Instrumentation *instr = palloc(sizeof(Instrumentation));
Instrumentation *instr = palloc0(n * sizeof(Instrumentation));
memset(instr, 0, sizeof(Instrumentation));
/* we don't need to do any initialization except zero 'em */
return instr;
}