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Refactor XLogOpenRelation() and XLogReadBuffer() in preparation for relation

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forks. XLogOpenRelation() and the associated light-weight relation cache in
xlogutils.c is gone, and XLogReadBuffer() now takes a RelFileNode as argument,
instead of Relation.

For functions that still need a Relation struct during WAL replay, there's a
new function called CreateFakeRelcacheEntry() that returns a fake entry like
XLogOpenRelation() used to.
This commit is contained in:
Heikki Linnakangas
2008-06-12 09:12:31 +00:00
parent c4f2a0458d
commit a213f1ee6c
20 changed files with 295 additions and 427 deletions
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32
src/backend/access/gist/gistxlog.c
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@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/gist/gistxlog.c,v 1.28 2008/05/12 00:00:44 alvherre Exp $
* $PostgreSQL: pgsql/src/backend/access/gist/gistxlog.c,v 1.29 2008/06/12 09:12:30 heikki Exp $
*-------------------------------------------------------------------------
*/
#include "postgres.h"
@ -189,7 +189,6 @@ gistRedoPageUpdateRecord(XLogRecPtr lsn, XLogRecord *record, bool isnewroot)
{
gistxlogPageUpdate *xldata = (gistxlogPageUpdate *) XLogRecGetData(record);
PageUpdateRecord xlrec;
Relation reln;
Buffer buffer;
Page page;
@ -208,8 +207,7 @@ gistRedoPageUpdateRecord(XLogRecPtr lsn, XLogRecord *record, bool isnewroot)
decodePageUpdateRecord(&xlrec, record);
reln = XLogOpenRelation(xlrec.data->node);
buffer = XLogReadBuffer(reln, xlrec.data->blkno, false);
buffer = XLogReadBuffer(xlrec.data->node, xlrec.data->blkno, false);
if (!BufferIsValid(buffer))
return;
page = (Page) BufferGetPage(buffer);
@ -234,7 +232,7 @@ gistRedoPageUpdateRecord(XLogRecPtr lsn, XLogRecord *record, bool isnewroot)
/* add tuples */
if (xlrec.len > 0)
gistfillbuffer(reln, page, xlrec.itup, xlrec.len, InvalidOffsetNumber);
gistfillbuffer(page, xlrec.itup, xlrec.len, InvalidOffsetNumber);
/*
* special case: leafpage, nothing to insert, nothing to delete, then
@ -262,7 +260,6 @@ static void
gistRedoPageDeleteRecord(XLogRecPtr lsn, XLogRecord *record)
{
gistxlogPageDelete *xldata = (gistxlogPageDelete *) XLogRecGetData(record);
Relation reln;
Buffer buffer;
Page page;
@ -270,8 +267,7 @@ gistRedoPageDeleteRecord(XLogRecPtr lsn, XLogRecord *record)
if (record->xl_info & XLR_BKP_BLOCK_1)
return;
reln = XLogOpenRelation(xldata->node);
buffer = XLogReadBuffer(reln, xldata->blkno, false);
buffer = XLogReadBuffer(xldata->node, xldata->blkno, false);
if (!BufferIsValid(buffer))
return;
@ -319,14 +315,12 @@ static void
gistRedoPageSplitRecord(XLogRecPtr lsn, XLogRecord *record)
{
PageSplitRecord xlrec;
Relation reln;
Buffer buffer;
Page page;
int i;
int flags;
decodePageSplitRecord(&xlrec, record);
reln = XLogOpenRelation(xlrec.data->node);
flags = xlrec.data->origleaf ? F_LEAF : 0;
/* loop around all pages */
@ -334,7 +328,7 @@ gistRedoPageSplitRecord(XLogRecPtr lsn, XLogRecord *record)
{
NewPage *newpage = xlrec.page + i;
buffer = XLogReadBuffer(reln, newpage->header->blkno, true);
buffer = XLogReadBuffer(xlrec.data->node, newpage->header->blkno, true);
Assert(BufferIsValid(buffer));
page = (Page) BufferGetPage(buffer);
@ -342,7 +336,7 @@ gistRedoPageSplitRecord(XLogRecPtr lsn, XLogRecord *record)
GISTInitBuffer(buffer, flags);
/* and fill it */
gistfillbuffer(reln, page, newpage->itup, newpage->header->num, FirstOffsetNumber);
gistfillbuffer(page, newpage->itup, newpage->header->num, FirstOffsetNumber);
PageSetLSN(page, lsn);
PageSetTLI(page, ThisTimeLineID);
@ -361,12 +355,10 @@ static void
gistRedoCreateIndex(XLogRecPtr lsn, XLogRecord *record)
{
RelFileNode *node = (RelFileNode *) XLogRecGetData(record);
Relation reln;
Buffer buffer;
Page page;
reln = XLogOpenRelation(*node);
buffer = XLogReadBuffer(reln, GIST_ROOT_BLKNO, true);
buffer = XLogReadBuffer(*node, GIST_ROOT_BLKNO, true);
Assert(BufferIsValid(buffer));
page = (Page) BufferGetPage(buffer);
@ -602,7 +594,7 @@ gistContinueInsert(gistIncompleteInsert *insert)
lenitup;
Relation index;
index = XLogOpenRelation(insert->node);
index = CreateFakeRelcacheEntry(insert->node);
/*
* needed vector itup never will be more than initial lenblkno+2, because
@ -624,7 +616,7 @@ gistContinueInsert(gistIncompleteInsert *insert)
* it was split root, so we should only make new root. it can't be
* simple insert into root, we should replace all content of root.
*/
Buffer buffer = XLogReadBuffer(index, GIST_ROOT_BLKNO, true);
Buffer buffer = XLogReadBuffer(insert->node, GIST_ROOT_BLKNO, true);
gistnewroot(index, buffer, itup, lenitup, NULL);
UnlockReleaseBuffer(buffer);
@ -703,7 +695,7 @@ gistContinueInsert(gistIncompleteInsert *insert)
LockBuffer(buffers[numbuffer], GIST_EXCLUSIVE);
GISTInitBuffer(buffers[numbuffer], 0);
pages[numbuffer] = BufferGetPage(buffers[numbuffer]);
gistfillbuffer(index, pages[numbuffer], itup, lenitup, FirstOffsetNumber);
gistfillbuffer(pages[numbuffer], itup, lenitup, FirstOffsetNumber);
numbuffer++;
if (BufferGetBlockNumber(buffers[0]) == GIST_ROOT_BLKNO)
@ -749,7 +741,7 @@ gistContinueInsert(gistIncompleteInsert *insert)
for (j = 0; j < ntodelete; j++)
PageIndexTupleDelete(pages[0], todelete[j]);
gistfillbuffer(index, pages[0], itup, lenitup, InvalidOffsetNumber);
gistfillbuffer(pages[0], itup, lenitup, InvalidOffsetNumber);
rdata = formUpdateRdata(index->rd_node, buffers[0],
todelete, ntodelete,
@ -794,6 +786,8 @@ gistContinueInsert(gistIncompleteInsert *insert)
}
}
FreeFakeRelcacheEntry(index);
ereport(LOG,
(errmsg("index %u/%u/%u needs VACUUM FULL or REINDEX to finish crash recovery",
insert->node.spcNode, insert->node.dbNode, insert->node.relNode),