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Remove flatfiles.c, which is now obsolete.

Browse Source 
Recent commits have removed the various uses it was supporting.  It was a
performance bottleneck, according to bug report #4919 by Lauris Ulmanis; seems
it slowed down user creation after a billion users.
This commit is contained in:
Alvaro Herrera
2009-09-01 02:54:52 +00:00
parent 0905e8aeeb
commit a8bb8eb583
14 changed files with 36 additions and 1159 deletions
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11
src/backend/commands/vacuum.c
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@@ -13,7 +13,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/vacuum.c,v 1.391 2009/08/31 02:23:22 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/vacuum.c,v 1.392 2009/09/01 02:54:51 alvherre Exp $
*
*-------------------------------------------------------------------------
*/
@@ -46,7 +46,6 @@
#include "storage/procarray.h"
#include "utils/acl.h"
#include "utils/builtins.h"
#include "utils/flatfiles.h"
#include "utils/fmgroids.h"
#include "utils/inval.h"
#include "utils/lsyscache.h"
@@ -893,15 +892,11 @@ vac_update_datfrozenxid(void)
heap_close(relation, RowExclusiveLock);
/*
* If we were able to advance datfrozenxid, mark the flat-file copy of
* pg_database for update at commit, and see if we can truncate pg_clog.
* Also force update if the shared XID-wrap-limit info is stale.
* If we were able to advance datfrozenxid, see if we can truncate pg_clog.
* Also do it if the shared XID-wrap-limit info is stale.
*/
if (dirty || !TransactionIdLimitIsValid())
{
database_file_update_needed();
vac_truncate_clog(newFrozenXid);
}
}