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Rename XLOG_BTREE_NEWPAGE xlog record type into XLOG_HEAP_NEWPAGE, and

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shift support code into heapam.c accordingly.  This is in service of
soon-to-be-committed ALTER TABLE SET TABLESPACE code that will want to
use this same record type for both heaps and indexes.

Theoretically I should have forced initdb for this, but in practice there
is no change in xlog contents because CVS tip will never really emit this
record type anyhow...
This commit is contained in:
Tom Lane
2004-07-11 18:01:45 +00:00
parent 98e9775a3a
commit 94d4d240bb
5 changed files with 68 additions and 65 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 1.169 2004/06/18 06:13:09 tgl Exp $
* $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.170 2004/07/11 18:01:44 tgl Exp $
*
*
* INTERFACE ROUTINES
@ -2189,6 +2189,39 @@ heap_xlog_clean(bool redo, XLogRecPtr lsn, XLogRecord *record)
WriteBuffer(buffer);
}
static void
heap_xlog_newpage(bool redo, XLogRecPtr lsn, XLogRecord *record)
{
xl_heap_newpage *xlrec = (xl_heap_newpage *) XLogRecGetData(record);
Relation reln;
Buffer buffer;
Page page;
/*
* Note: the NEWPAGE log record is used for both heaps and indexes,
* so do not do anything that assumes we are touching a heap.
*/
if (!redo || (record->xl_info & XLR_BKP_BLOCK_1))
return;
reln = XLogOpenRelation(redo, RM_HEAP_ID, xlrec->node);
if (!RelationIsValid(reln))
return;
buffer = XLogReadBuffer(true, reln, xlrec->blkno);
if (!BufferIsValid(buffer))
elog(PANIC, "heap_newpage_redo: no block");
page = (Page) BufferGetPage(buffer);
Assert(record->xl_len == SizeOfHeapNewpage + BLCKSZ);
memcpy(page, (char *) xlrec + SizeOfHeapNewpage, BLCKSZ);
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
LockBuffer(buffer, BUFFER_LOCK_UNLOCK);
WriteBuffer(buffer);
}
static void
heap_xlog_delete(bool redo, XLogRecPtr lsn, XLogRecord *record)
{
@ -2603,6 +2636,8 @@ heap_redo(XLogRecPtr lsn, XLogRecord *record)
heap_xlog_update(true, lsn, record, true);
else if (info == XLOG_HEAP_CLEAN)
heap_xlog_clean(true, lsn, record);
else if (info == XLOG_HEAP_NEWPAGE)
heap_xlog_newpage(true, lsn, record);
else
elog(PANIC, "heap_redo: unknown op code %u", info);
}
@ -2623,6 +2658,8 @@ heap_undo(XLogRecPtr lsn, XLogRecord *record)
heap_xlog_update(false, lsn, record, true);
else if (info == XLOG_HEAP_CLEAN)
heap_xlog_clean(false, lsn, record);
else if (info == XLOG_HEAP_NEWPAGE)
heap_xlog_newpage(false, lsn, record);
else
elog(PANIC, "heap_undo: unknown op code %u", info);
}
@ -2677,6 +2714,14 @@ heap_desc(char *buf, uint8 xl_info, char *rec)
xlrec->node.spcNode, xlrec->node.dbNode,
xlrec->node.relNode, xlrec->block);
}
else if (info == XLOG_HEAP_NEWPAGE)
{
xl_heap_newpage *xlrec = (xl_heap_newpage *) rec;
sprintf(buf + strlen(buf), "newpage: rel %u/%u/%u; blk %u",
xlrec->node.spcNode, xlrec->node.dbNode,
xlrec->node.relNode, xlrec->blkno);
}
else
strcat(buf, "UNKNOWN");
}