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Fix pg_stat_reset_single_table_counters() for shared relations

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This commit fixes the function of $subject for shared relations.  This
feature has been added by e042678.  Unfortunately, this new behavior got
removed by 5891c7a when moving statistics to shared memory.

Reported-by: Mitsuru Hinata
Author: Masahiro Ikeda
Reviewed-by: Kyotaro Horiguchi, Masahiko Sawada
Discussion: https://postgr.es/m/7cc69f863d9b1bc677544e3accd0e4b4@oss.nttdata.com
Backpatch-through: 15
This commit is contained in:
Michael Paquier
2023-08-21 13:32:14 +09:00
parent 1951d21b29
commit 6fde2d9a00
3 changed files with 83 additions and 2 deletions
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9
src/backend/utils/adt/pgstatfuncs.c
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@ -17,6 +17,7 @@
#include "access/htup_details.h"
#include "access/xlog.h"
#include "access/xlogprefetcher.h"
#include "catalog/catalog.h"
#include "catalog/pg_authid.h"
#include "catalog/pg_type.h"
#include "common/ip.h"
@ -1776,13 +1777,17 @@ pg_stat_reset_shared(PG_FUNCTION_ARGS)
PG_RETURN_VOID();
}
/* Reset a single counter in the current database */
/*
* Reset a statistics for a single object, which may be of current
* database or shared across all databases in the cluster.
*/
Datum
pg_stat_reset_single_table_counters(PG_FUNCTION_ARGS)
{
Oid taboid = PG_GETARG_OID(0);
Oid dboid = (IsSharedRelation(taboid) ? InvalidOid : MyDatabaseId);
pgstat_reset(PGSTAT_KIND_RELATION, MyDatabaseId, taboid);
pgstat_reset(PGSTAT_KIND_RELATION, dboid, taboid);
PG_RETURN_VOID();
}