database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-07 00:36:50 +03:00
Code Activity

Adjust nodeBitmapIndexscan.c to not keep the index open across calls,

Browse Source 
but just to open and close it during MultiExecBitmapIndexScan.  This
avoids acquiring duplicate resources (eg, multiple locks on the same
relation) in a tree with many bitmap scans.  Also, don't bother to
lock the parent heap at all here, since we must be underneath a
BitmapHeapScan node that will be holding a suitable lock.
This commit is contained in:
Tom Lane
2005-04-24 18:16:38 +00:00
parent 8403741796
commit 186655e9a5
2 changed files with 30 additions and 88 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/include/nodes/execnodes.h
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/nodes/execnodes.h,v 1.127 2005/04/20 15:48:36 tgl Exp $
* $PostgreSQL: pgsql/src/include/nodes/execnodes.h,v 1.128 2005/04/24 18:16:38 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -908,8 +908,6 @@ typedef struct IndexScanState
* that will be evaluated at runtime
* RuntimeContext expr context for evaling runtime Skeys
* RuntimeKeysReady true if runtime Skeys have been computed
* RelationDesc relation descriptor
* ScanDesc scan descriptor
* ----------------
*/
typedef struct BitmapIndexScanState
@ -921,8 +919,6 @@ typedef struct BitmapIndexScanState
ExprState **biss_RuntimeKeyInfo;
ExprContext *biss_RuntimeContext;
bool biss_RuntimeKeysReady;
Relation biss_RelationDesc;
IndexScanDesc biss_ScanDesc;
} BitmapIndexScanState;
/* ----------------