database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-11-09 06:21:09 +03:00
Code Activity

Change the timestamps recorded in transaction commit/abort xlog records

Browse Source 
from time_t to TimestampTz representation.  This provides full gettimeofday()
resolution of the timestamps, which might be useful when attempting to
do point-in-time recovery --- previously it was not possible to specify
the stop point with sub-second resolution.  But mostly this is to get
rid of TimestampTz-to-time_t conversion overhead during commit.  Per my
proposal of a day or two back.
This commit is contained in:
Tom Lane
2007-04-30 21:01:53 +00:00
parent 641912b4d1
commit c432061963
7 changed files with 67 additions and 42 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/backend/access/transam/twophase.c
View File

@@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/transam/twophase.c,v 1.29 2007/04/03 16:34:35 tgl Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/twophase.c,v 1.30 2007/04/30 21:01:52 tgl Exp $
*
* NOTES
* Each global transaction is associated with a global transaction
@@ -1675,7 +1675,7 @@ RecordTransactionCommitPrepared(TransactionId xid,
/* Emit the XLOG commit record */
xlrec.xid = xid;
xlrec.crec.xtime = time(NULL);
xlrec.crec.xact_time = GetCurrentTimestamp();
xlrec.crec.nrels = nrels;
xlrec.crec.nsubxacts = nchildren;
rdata[0].data = (char *) (&xlrec);
@@ -1753,7 +1753,7 @@ RecordTransactionAbortPrepared(TransactionId xid,
/* Emit the XLOG abort record */
xlrec.xid = xid;
xlrec.arec.xtime = time(NULL);
xlrec.arec.xact_time = GetCurrentTimestamp();
xlrec.arec.nrels = nrels;
xlrec.arec.nsubxacts = nchildren;
rdata[0].data = (char *) (&xlrec);