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Repair error with not adjusting active scans properly after gistSplit. 

Patch from Teodor Sigaev.
This commit is contained in:
Tom Lane 2002-05-28 15:22:33 +00:00
parent 6005c50fa6
commit a71a53079c
1 changed files with 9 additions and 5 deletions
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14
src/backend/access/gist/gist.c
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@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/gist/gist.c,v 1.93 2002/05/24 18:57:55 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/access/gist/gist.c,v 1.94 2002/05/28 15:22:33 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -494,6 +494,14 @@ gistlayerinsert(Relation r, BlockNumber blkno,
/* key is modified, so old version must be deleted */
ItemPointerSet(&oldtid, blkno, child);
gistdelete(r, &oldtid);
/*
* if child was splitted, new key for child will be inserted
* in the end list of child, so we must say to any scans
* that page is changed beginning from 'child' offset
*/
if ( ret & SPLITED )
gistadjscans(r, GISTOP_SPLIT, blkno, child);
}
ret = INSERTED;
@ -1411,10 +1419,6 @@ gistSplit(Relation r,
ItemPointerSet(&(newtup[nlen - 1]->t_tid), lbknum, 1);
}
/* adjust active scans */
gistadjscans(r, GISTOP_SPLIT, BufferGetBlockNumber(buffer), FirstOffsetNumber);
/* !!! pfree */
pfree(rvectup);
pfree(lvectup);