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Fix wrong WAL info value generated when gistContinueInsert() performs an

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index page split.  This would result in index corruption, or even more likely
an error during WAL replay, if we were unlucky enough to crash during
end-of-recovery cleanup after having completed an incomplete GIST insertion.

Yoichi Hirai
This commit is contained in:
Tom Lane 2009-12-24 17:52:04 +00:00
parent 98e8a419ef
commit 668e37d138
1 changed files with 5 additions and 2 deletions
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7
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 1.33 2009/12/19 01:32:32 sriggs Exp $
* $PostgreSQL: pgsql/src/backend/access/gist/gistxlog.c,v 1.34 2009/12/24 17:52:04 tgl Exp $
*-------------------------------------------------------------------------
*/
#include "postgres.h"
@ -650,6 +650,7 @@ gistContinueInsert(gistIncompleteInsert *insert)
int j,
k,
pituplen = 0;
uint8 xlinfo;
XLogRecData *rdata;
XLogRecPtr recptr;
Buffer tempbuffer = InvalidBuffer;
@ -738,6 +739,7 @@ gistContinueInsert(gistIncompleteInsert *insert)
for (j = 0; j < ntodelete; j++)
PageIndexTupleDelete(pages[0], todelete[j]);
xlinfo = XLOG_GIST_PAGE_SPLIT;
rdata = formSplitRdata(index->rd_node, insert->path[i],
false, &(insert->key),
gistMakePageLayout(buffers, numbuffer));
@ -751,6 +753,7 @@ gistContinueInsert(gistIncompleteInsert *insert)
PageIndexTupleDelete(pages[0], todelete[j]);
gistfillbuffer(pages[0], itup, lenitup, InvalidOffsetNumber);
xlinfo = XLOG_GIST_PAGE_UPDATE;
rdata = formUpdateRdata(index->rd_node, buffers[0],
todelete, ntodelete,
itup, lenitup, &(insert->key));
@ -767,7 +770,7 @@ gistContinueInsert(gistIncompleteInsert *insert)
GistPageGetOpaque(pages[j])->rightlink = InvalidBlockNumber;
MarkBufferDirty(buffers[j]);
}
recptr = XLogInsert(RM_GIST_ID, XLOG_GIST_PAGE_UPDATE, rdata);
recptr = XLogInsert(RM_GIST_ID, xlinfo, rdata);
for (j = 0; j < numbuffer; j++)
{
PageSetLSN(pages[j], recptr);