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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2007-02-07 23:11:30 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2007-02-07 23:11:30 +0000 |
| commit | aec4cf1c8c410f9c9db3deabcb94502dcd355b3f (patch) | |
| tree | 18ff3f246c08608d5b09f3da0d267a51f3318378 /src/include/pgstat.h | |
| parent | d9ce68872f7f6aab6cea2481b991b3c1a83d1956 (diff) | |
| download | postgresql-aec4cf1c8c410f9c9db3deabcb94502dcd355b3f.tar.gz postgresql-aec4cf1c8c410f9c9db3deabcb94502dcd355b3f.zip | |
Add a function pg_stat_clear_snapshot() that discards any statistics snapshot
already collected in the current transaction; this allows plpgsql functions to
watch for stats updates even though they are confined to a single transaction.
Use this instead of the previous kluge involving pg_stat_file() to wait for
the stats collector to update in the stats regression test. Internally,
decouple storage of stats snapshots from transaction boundaries; they'll
now stick around until someone calls pgstat_clear_snapshot --- which xact.c
still does at transaction end, to maintain the previous behavior. This makes
the logic a lot cleaner, at the price of a couple dozen cycles per transaction
exit.
Diffstat (limited to 'src/include/pgstat.h')
| -rw-r--r-- | src/include/pgstat.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/include/pgstat.h b/src/include/pgstat.h index e64fb8bf550..896cc5ad68c 100644 --- a/src/include/pgstat.h +++ b/src/include/pgstat.h @@ -5,7 +5,7 @@ * * Copyright (c) 2001-2007, PostgreSQL Global Development Group * - * $PostgreSQL: pgsql/src/include/pgstat.h,v 1.52 2007/01/05 22:19:50 momjian Exp $ + * $PostgreSQL: pgsql/src/include/pgstat.h,v 1.53 2007/02/07 23:11:30 tgl Exp $ * ---------- */ #ifndef PGSTAT_H @@ -380,6 +380,7 @@ extern void pgstat_report_tabstat(void); extern void pgstat_vacuum_tabstat(void); extern void pgstat_drop_relation(Oid relid); +extern void pgstat_clear_snapshot(void); extern void pgstat_reset_counters(void); extern void pgstat_report_autovac(Oid dboid); |