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Fix using too many LWLocks bug, reported by Craig Ringer

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<craig@postnewspapers.com.au>.
It was my mistake, I missed limitation of number of held locks, now GIN doesn't
use continiuous locks, but still hold buffers pinned to prevent interference
with vacuum's deletion algorithm.
This commit is contained in:
Teodor Sigaev
2008-04-22 17:54:19 +00:00
parent cebc3c42bb
commit dcd4075379
2 changed files with 169 additions and 215 deletions
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14
src/include/access/gin.h
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@ -4,7 +4,7 @@
*
* Copyright (c) 2006-2008, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/include/access/gin.h,v 1.16 2008/01/01 19:45:56 momjian Exp $
* $PostgreSQL: pgsql/src/include/access/gin.h,v 1.16.2.1 2008/04/22 17:54:19 teodor Exp $
*--------------------------------------------------------------------------
*/
@ -356,14 +356,16 @@ typedef struct GinScanEntryData
/* entry, got from extractQueryFn */
Datum entry;
/* current ItemPointer to heap, its offset in buffer and buffer */
ItemPointerData curItem;
OffsetNumber offset;
/* Current page in posting tree */
Buffer buffer;
/* in case of Posing list */
/* current ItemPointer to heap */
ItemPointerData curItem;
/* used for Posting list and one page in Posting tree */
ItemPointerData *list;
uint32 nlist;
uint32 nlist;
OffsetNumber offset;
bool isFinished;
bool reduceResult;