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Add pg_stat_reset_shared('bgwriter') to reset the cluster-wide shared

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statistics of the bgwriter.

Greg Smith
This commit is contained in:
Magnus Hagander
2010-01-19 14:11:32 +00:00
parent 4f15699d70
commit 7e40cdc075
6 changed files with 111 additions and 7 deletions
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14
src/backend/utils/adt/pgstatfuncs.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.57 2010/01/02 16:57:54 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.58 2010/01/19 14:11:31 mha Exp $
*
*-------------------------------------------------------------------------
*/
@ -78,6 +78,7 @@ extern Datum pg_stat_get_buf_alloc(PG_FUNCTION_ARGS);
extern Datum pg_stat_clear_snapshot(PG_FUNCTION_ARGS);
extern Datum pg_stat_reset(PG_FUNCTION_ARGS);
extern Datum pg_stat_reset_shared(PG_FUNCTION_ARGS);
/* Global bgwriter statistics, from bgwriter.c */
extern PgStat_MsgBgWriter bgwriterStats;
@ -1108,3 +1109,14 @@ pg_stat_reset(PG_FUNCTION_ARGS)
PG_RETURN_VOID();
}
/* Reset some shared cluster-wide counters */
Datum
pg_stat_reset_shared(PG_FUNCTION_ARGS)
{
char *target = text_to_cstring(PG_GETARG_TEXT_PP(0));
pgstat_reset_shared_counters(target);
PG_RETURN_VOID();
}