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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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19
src/backend/access/transam/xact.c
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@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.274 2009/06/11 14:48:54 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.275 2009/09/01 02:54:51 alvherre Exp $
*
*-------------------------------------------------------------------------
*/
@ -43,7 +43,6 @@
#include "storage/sinvaladt.h"
#include "storage/smgr.h"
#include "utils/combocid.h"
#include "utils/flatfiles.h"
#include "utils/guc.h"
#include "utils/inval.h"
#include "utils/memutils.h"
@ -1608,12 +1607,6 @@ CommitTransaction(void)
/* NOTIFY commit must come before lower-level cleanup */
AtCommit_Notify();
/*
* Update flat files if we changed pg_database, pg_authid or
* pg_auth_members. This should be the last step before commit.
*/
AtEOXact_UpdateFlatFiles(true);
/* Prevent cancel/die interrupt while cleaning up */
HOLD_INTERRUPTS();
@ -1797,7 +1790,7 @@ PrepareTransaction(void)
/* close large objects before lower-level cleanup */
AtEOXact_LargeObject(true);
/* NOTIFY and flatfiles will be handled below */
/* NOTIFY will be handled below */
/*
* Don't allow PREPARE TRANSACTION if we've accessed a temporary table in
@ -1860,7 +1853,6 @@ PrepareTransaction(void)
StartPrepare(gxact);
AtPrepare_Notify();
AtPrepare_UpdateFlatFiles();
AtPrepare_Inval();
AtPrepare_Locks();
AtPrepare_PgStat();
@ -1909,7 +1901,7 @@ PrepareTransaction(void)
/* Clean up the snapshot manager */
AtEarlyCommit_Snapshot();
/* notify and flatfiles don't need a postprepare call */
/* notify doesn't need a postprepare call */
PostPrepare_PgStat();
@ -2036,7 +2028,6 @@ AbortTransaction(void)
AtAbort_Portals();
AtEOXact_LargeObject(false); /* 'false' means it's abort */
AtAbort_Notify();
AtEOXact_UpdateFlatFiles(false);
/*
* Advertise the fact that we aborted in pg_clog (assuming that we got as
@ -3764,8 +3755,6 @@ CommitSubTransaction(void)
AtEOSubXact_LargeObject(true, s->subTransactionId,
s->parent->subTransactionId);
AtSubCommit_Notify();
AtEOSubXact_UpdateFlatFiles(true, s->subTransactionId,
s->parent->subTransactionId);
CallSubXactCallbacks(SUBXACT_EVENT_COMMIT_SUB, s->subTransactionId,
s->parent->subTransactionId);
@ -3885,8 +3874,6 @@ AbortSubTransaction(void)
AtEOSubXact_LargeObject(false, s->subTransactionId,
s->parent->subTransactionId);
AtSubAbort_Notify();
AtEOSubXact_UpdateFlatFiles(false, s->subTransactionId,
s->parent->subTransactionId);
/* Advertise the fact that we aborted in pg_clog. */
(void) RecordTransactionAbort(true);