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Invent WAL timelines, as per recent discussion, to make point-in-time

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recovery more manageable.  Also, undo recent change to add FILE_HEADER
and WASTED_SPACE records to XLOG; instead make the XLOG page header
variable-size with extra fields in the first page of an XLOG file.
This should fix the boundary-case bugs observed by Mark Kirkwood.
initdb forced due to change of XLOG representation.
This commit is contained in:
Tom Lane
2004-07-21 22:31:26 +00:00
parent 8d3517dc1f
commit 2042b3428d
26 changed files with 1322 additions and 982 deletions
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6
src/include/access/xlogutils.h
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@@ -6,19 +6,15 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/access/xlogutils.h,v 1.14 2004/02/11 22:55:25 tgl Exp $
* $PostgreSQL: pgsql/src/include/access/xlogutils.h,v 1.15 2004/07/21 22:31:25 tgl Exp $
*/
#ifndef XLOG_UTILS_H
#define XLOG_UTILS_H
#include "access/rmgr.h"
#include "storage/buf.h"
#include "storage/itemptr.h"
#include "utils/rel.h"
extern int XLogIsOwnerOfTuple(RelFileNode hnode, ItemPointer iptr,
TransactionId xid, CommandId cid);
extern bool XLogIsValidTuple(RelFileNode hnode, ItemPointer iptr);
extern void XLogInitRelationCache(void);
extern void XLogCloseRelationCache(void);