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Nested transactions. There is still much left to do, especially on the

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performance front, but with feature freeze upon us I think it's time to
drive a stake in the ground and say that this will be in 7.5.

Alvaro Herrera, with some help from Tom Lane.
This commit is contained in:
Tom Lane
2004-07-01 00:52:04 +00:00
parent 4c9aa572fa
commit 573a71a5da
74 changed files with 4516 additions and 1144 deletions
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6
src/backend/storage/lmgr/lwlock.c
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@@ -15,13 +15,14 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/lmgr/lwlock.c,v 1.20 2004/06/11 16:43:24 tgl Exp $
* $PostgreSQL: pgsql/src/backend/storage/lmgr/lwlock.c,v 1.21 2004/07/01 00:50:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "access/clog.h"
#include "access/subtrans.h"
#include "storage/lwlock.h"
#include "storage/proc.h"
#include "storage/spin.h"
@@ -111,6 +112,9 @@ NumLWLocks(void)
/* clog.c needs one per CLOG buffer + one control lock */
numLocks += NUM_CLOG_BUFFERS + 1;
/* subtrans.c needs one per SubTrans buffer + one control lock */
numLocks += NUM_SUBTRANS_BUFFERS + 1;
/* Perhaps create a few more for use by user-defined modules? */
return numLocks;