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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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12
src/backend/commands/sequence.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/sequence.c,v 1.113 2004/07/12 05:37:03 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/sequence.c,v 1.114 2004/07/21 22:31:21 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -279,7 +279,7 @@ DefineSequence(CreateSeqStmt *seq)
recptr = XLogInsert(RM_SEQ_ID, XLOG_SEQ_LOG | XLOG_NO_TRAN, rdata);
PageSetLSN(page, recptr);
PageSetSUI(page, ThisStartUpID);
PageSetTLI(page, ThisTimeLineID);
}
END_CRIT_SECTION();
@ -354,7 +354,7 @@ AlterSequence(AlterSeqStmt *stmt)
recptr = XLogInsert(RM_SEQ_ID, XLOG_SEQ_LOG | XLOG_NO_TRAN, rdata);
PageSetLSN(page, recptr);
PageSetSUI(page, ThisStartUpID);
PageSetTLI(page, ThisTimeLineID);
}
END_CRIT_SECTION();
@ -553,7 +553,7 @@ nextval(PG_FUNCTION_ARGS)
recptr = XLogInsert(RM_SEQ_ID, XLOG_SEQ_LOG | XLOG_NO_TRAN, rdata);
PageSetLSN(page, recptr);
PageSetSUI(page, ThisStartUpID);
PageSetTLI(page, ThisTimeLineID);
}
/* update on-disk data */
@ -689,7 +689,7 @@ do_setval(RangeVar *sequence, int64 next, bool iscalled)
recptr = XLogInsert(RM_SEQ_ID, XLOG_SEQ_LOG | XLOG_NO_TRAN, rdata);
PageSetLSN(page, recptr);
PageSetSUI(page, ThisStartUpID);
PageSetTLI(page, ThisTimeLineID);
}
/* save info in sequence relation */
@ -1091,7 +1091,7 @@ seq_redo(XLogRecPtr lsn, XLogRecord *record)
elog(PANIC, "seq_redo: failed to add item to page");
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
PageSetTLI(page, ThisTimeLineID);
LockBuffer(buffer, BUFFER_LOCK_UNLOCK);
WriteBuffer(buffer);
}