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Add an EXPLAIN (BUFFERS) option to show buffer-usage statistics.

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This patch also removes buffer-usage statistics from the track_counts
output, since this (or the global server statistics) is deemed to be a better
interface to this information.

Itagaki Takahiro, reviewed by Euler Taveira de Oliveira.
This commit is contained in:
Robert Haas
2009-12-15 04:57:48 +00:00
parent 6f1bf75d50
commit cddca5ec13
25 changed files with 274 additions and 140 deletions
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4
src/backend/executor/execProcnode.c
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@ -12,7 +12,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/execProcnode.c,v 1.68 2009/10/12 18:10:41 tgl Exp $
* $PostgreSQL: pgsql/src/backend/executor/execProcnode.c,v 1.69 2009/12/15 04:57:47 rhaas Exp $
*
*-------------------------------------------------------------------------
*/
@ -321,7 +321,7 @@ ExecInitNode(Plan *node, EState *estate, int eflags)
/* Set up instrumentation for this node if requested */
if (estate->es_instrument)
result->instrument = InstrAlloc(1);
result->instrument = InstrAlloc(1, estate->es_instrument);
return result;
}