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Call pgstat_drop_database during DROP DATABASE, so that any stats file

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entries for the victim database go away sooner rather than later.  We already
did the equivalent thing at the per-relation level, not sure why it's not
been done for whole databases.  With this change, pgstat_vacuum_tabstat
should usually not find anything to do; though we still need it as a backstop
in case DROPDB or TABPURGE messages get lost under load.
This commit is contained in:
Tom Lane
2007-02-09 16:12:19 +00:00
parent c138b966d4
commit f44271176e
3 changed files with 11 additions and 5 deletions
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8
src/backend/commands/dbcommands.c
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@ -13,7 +13,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/dbcommands.c,v 1.191 2007/02/01 19:10:26 momjian Exp $
* $PostgreSQL: pgsql/src/backend/commands/dbcommands.c,v 1.192 2007/02/09 16:12:18 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -37,6 +37,7 @@
#include "commands/tablespace.h"
#include "mb/pg_wchar.h"
#include "miscadmin.h"
#include "pgstat.h"
#include "postmaster/bgwriter.h"
#include "storage/freespace.h"
#include "storage/procarray.h"
@ -644,6 +645,11 @@ dropdb(const char *dbname, bool missing_ok)
*/
FreeSpaceMapForgetDatabase(db_id);
/*
* Tell the stats collector to forget it immediately, too.
*/
pgstat_drop_database(db_id);
/*
* Tell bgwriter to forget any pending fsync requests for files in the
* database; else it'll fail at next checkpoint.