database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-21 16:02:15 +03:00
Code Activity

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

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

24
src/backend/access/heap/heapam.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.170 2004/07/11 18:01:44 tgl Exp $
* $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.171 2004/07/21 22:31:19 tgl Exp $
*
*
* INTERFACE ROUTINES
@ -1214,7 +1214,7 @@ heap_insert(Relation relation, HeapTuple tup, CommandId cid)
recptr = XLogInsert(RM_HEAP_ID, info, rdata);
PageSetLSN(page, recptr);
PageSetSUI(page, ThisStartUpID);
PageSetTLI(page, ThisTimeLineID);
}
else
{
@ -1390,7 +1390,7 @@ l1:
recptr = XLogInsert(RM_HEAP_ID, XLOG_HEAP_DELETE, rdata);
PageSetLSN(dp, recptr);
PageSetSUI(dp, ThisStartUpID);
PageSetTLI(dp, ThisTimeLineID);
}
else
{
@ -1748,10 +1748,10 @@ l2:
if (newbuf != buffer)
{
PageSetLSN(BufferGetPage(newbuf), recptr);
PageSetSUI(BufferGetPage(newbuf), ThisStartUpID);
PageSetTLI(BufferGetPage(newbuf), ThisTimeLineID);
}
PageSetLSN(BufferGetPage(buffer), recptr);
PageSetSUI(BufferGetPage(buffer), ThisStartUpID);
PageSetTLI(BufferGetPage(buffer), ThisTimeLineID);
}
else
{
@ -1902,7 +1902,7 @@ l3:
* XLOG stuff: no logging is required as long as we have no
* savepoints. For savepoints private log could be used...
*/
PageSetSUI(BufferGetPage(*buffer), ThisStartUpID);
PageSetTLI(BufferGetPage(*buffer), ThisTimeLineID);
/* store transaction information of xact marking the tuple */
tuple->t_data->t_infomask &= ~(HEAP_XMAX_COMMITTED |
@ -2184,7 +2184,7 @@ heap_xlog_clean(bool redo, XLogRecPtr lsn, XLogRecord *record)
PageRepairFragmentation(page, NULL);
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID); /* prev sui */
PageSetTLI(page, ThisTimeLineID);
LockBuffer(buffer, BUFFER_LOCK_UNLOCK);
WriteBuffer(buffer);
}
@ -2217,7 +2217,7 @@ heap_xlog_newpage(bool redo, XLogRecPtr lsn, XLogRecord *record)
memcpy(page, (char *) xlrec + SizeOfHeapNewpage, BLCKSZ);
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
PageSetTLI(page, ThisTimeLineID);
LockBuffer(buffer, BUFFER_LOCK_UNLOCK);
WriteBuffer(buffer);
}
@ -2283,7 +2283,7 @@ heap_xlog_delete(bool redo, XLogRecPtr lsn, XLogRecord *record)
/* Make sure there is no forward chain link in t_ctid */
htup->t_ctid = xlrec->target.tid;
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
PageSetTLI(page, ThisTimeLineID);
LockBuffer(buffer, BUFFER_LOCK_UNLOCK);
WriteBuffer(buffer);
return;
@ -2368,7 +2368,7 @@ heap_xlog_insert(bool redo, XLogRecPtr lsn, XLogRecord *record)
if (offnum == InvalidOffsetNumber)
elog(PANIC, "heap_insert_redo: failed to add tuple");
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID); /* prev sui */
PageSetTLI(page, ThisTimeLineID);
LockBuffer(buffer, BUFFER_LOCK_UNLOCK);
WriteBuffer(buffer);
return;
@ -2466,7 +2466,7 @@ heap_xlog_update(bool redo, XLogRecPtr lsn, XLogRecord *record, bool move)
if (samepage)
goto newsame;
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
PageSetTLI(page, ThisTimeLineID);
LockBuffer(buffer, BUFFER_LOCK_UNLOCK);
WriteBuffer(buffer);
goto newt;
@ -2564,7 +2564,7 @@ newsame:;
if (offnum == InvalidOffsetNumber)
elog(PANIC, "heap_update_redo: failed to add tuple");
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID); /* prev sui */
PageSetTLI(page, ThisTimeLineID);
LockBuffer(buffer, BUFFER_LOCK_UNLOCK);
WriteBuffer(buffer);
return;