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Make CLUSTER MVCC-safe. Heikki Linnakangas

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This commit is contained in:
Tom Lane
2007-04-08 01:26:33 +00:00
parent 2fca2c05e7
commit 7b78474da3
10 changed files with 894 additions and 97 deletions
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47
src/backend/access/heap/heapam.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.231 2007/04/03 04:14:26 tgl Exp $
* $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.232 2007/04/08 01:26:27 tgl Exp $
*
*
* INTERFACE ROUTINES
@@ -3299,6 +3299,51 @@ log_heap_move(Relation reln, Buffer oldbuf, ItemPointerData from,
return log_heap_update(reln, oldbuf, from, newbuf, newtup, true);
}
/*
* Perform XLogInsert of a HEAP_NEWPAGE record to WAL. Caller is responsible
* for writing the page to disk after calling this routine.
*
* Note: all current callers build pages in private memory and write them
* directly to smgr, rather than using bufmgr. Therefore there is no need
* to pass a buffer ID to XLogInsert, nor to perform MarkBufferDirty within
* the critical section.
*
* Note: the NEWPAGE log record is used for both heaps and indexes, so do
* not do anything that assumes we are touching a heap.
*/
XLogRecPtr
log_newpage(RelFileNode *rnode, BlockNumber blkno, Page page)
{
xl_heap_newpage xlrec;
XLogRecPtr recptr;
XLogRecData rdata[2];
/* NO ELOG(ERROR) from here till newpage op is logged */
START_CRIT_SECTION();
xlrec.node = *rnode;
xlrec.blkno = blkno;
rdata[0].data = (char *) &xlrec;
rdata[0].len = SizeOfHeapNewpage;
rdata[0].buffer = InvalidBuffer;
rdata[0].next = &(rdata[1]);
rdata[1].data = (char *) page;
rdata[1].len = BLCKSZ;
rdata[1].buffer = InvalidBuffer;
rdata[1].next = NULL;
recptr = XLogInsert(RM_HEAP_ID, XLOG_HEAP_NEWPAGE, rdata);
PageSetLSN(page, recptr);
PageSetTLI(page, ThisTimeLineID);
END_CRIT_SECTION();
return recptr;
}
static void
heap_xlog_clean(XLogRecPtr lsn, XLogRecord *record)
{