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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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20
src/backend/access/nbtree/nbtinsert.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.112 2004/04/21 18:24:25 tgl Exp $
* $PostgreSQL: pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.113 2004/07/21 22:31:19 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -621,11 +621,11 @@ _bt_insertonpg(Relation rel,
if (BufferIsValid(metabuf))
{
PageSetLSN(metapg, recptr);
PageSetSUI(metapg, ThisStartUpID);
PageSetTLI(metapg, ThisTimeLineID);
}
PageSetLSN(page, recptr);
PageSetSUI(page, ThisStartUpID);
PageSetTLI(page, ThisTimeLineID);
}
END_CRIT_SECTION();
@@ -903,13 +903,13 @@ _bt_split(Relation rel, Buffer buf, OffsetNumber firstright,
recptr = XLogInsert(RM_BTREE_ID, xlinfo, rdata);
PageSetLSN(leftpage, recptr);
PageSetSUI(leftpage, ThisStartUpID);
PageSetTLI(leftpage, ThisTimeLineID);
PageSetLSN(rightpage, recptr);
PageSetSUI(rightpage, ThisStartUpID);
PageSetTLI(rightpage, ThisTimeLineID);
if (!P_RIGHTMOST(ropaque))
{
PageSetLSN(spage, recptr);
PageSetSUI(spage, ThisStartUpID);
PageSetTLI(spage, ThisTimeLineID);
}
}
@@ -1494,13 +1494,13 @@ _bt_newroot(Relation rel, Buffer lbuf, Buffer rbuf)
recptr = XLogInsert(RM_BTREE_ID, XLOG_BTREE_NEWROOT, rdata);
PageSetLSN(rootpage, recptr);
PageSetSUI(rootpage, ThisStartUpID);
PageSetTLI(rootpage, ThisTimeLineID);
PageSetLSN(metapg, recptr);
PageSetSUI(metapg, ThisStartUpID);
PageSetTLI(metapg, ThisTimeLineID);
PageSetLSN(lpage, recptr);
PageSetSUI(lpage, ThisStartUpID);
PageSetTLI(lpage, ThisTimeLineID);
PageSetLSN(rpage, recptr);
PageSetSUI(rpage, ThisStartUpID);
PageSetTLI(rpage, ThisTimeLineID);
}
END_CRIT_SECTION();