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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/commands/vacuum.c
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@@ -13,7 +13,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/vacuum.c,v 1.281 2004/06/08 13:59:36 momjian Exp $
* $PostgreSQL: pgsql/src/backend/commands/vacuum.c,v 1.282 2004/07/01 00:50:11 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -25,6 +25,7 @@
#include "access/clog.h"
#include "access/genam.h"
#include "access/heapam.h"
#include "access/subtrans.h"
#include "access/xlog.h"
#include "catalog/catalog.h"
#include "catalog/catname.h"
@@ -798,8 +799,9 @@ vac_truncate_clog(TransactionId vacuumXID, TransactionId frozenXID)
return;
}
/* Truncate CLOG to the oldest vacuumxid */
/* Truncate CLOG and SUBTRANS to the oldest vacuumxid */
TruncateCLOG(vacuumXID);
TruncateSUBTRANS(vacuumXID);
/* Give warning about impending wraparound problems */
if (frozenAlreadyWrapped)