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Reset btpo.xact following recovery of btree delete page. Add btpo_xact

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field into WAL record and reset it from there, rather than using
FrozenTransactionId which can lead to some corner case bugs.

Problem report and suggested route to a fix from Heikki, details by me.
This commit is contained in:
Simon Riggs
2010-03-19 10:41:22 +00:00
parent 2827516394
commit 5c73ae17d1
3 changed files with 7 additions and 5 deletions
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4
src/backend/access/nbtree/nbtxlog.c
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@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/nbtree/nbtxlog.c,v 1.62 2010/02/26 02:00:34 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/nbtree/nbtxlog.c,v 1.63 2010/03/19 10:41:22 sriggs Exp $
*
*-------------------------------------------------------------------------
*/
@ -729,7 +729,7 @@ btree_xlog_delete_page(uint8 info, XLogRecPtr lsn, XLogRecord *record)
pageop->btpo_prev = leftsib;
pageop->btpo_next = rightsib;
pageop->btpo.xact = FrozenTransactionId;
pageop->btpo.xact = xlrec->btpo_xact;
pageop->btpo_flags = BTP_DELETED;
pageop->btpo_cycleid = 0;