aboutsummaryrefslogtreecommitdiff
path: root/src/backend/executor/nodeBitmapIndexscan.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/backend/executor/nodeBitmapIndexscan.c')
-rw-r--r--src/backend/executor/nodeBitmapIndexscan.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/src/backend/executor/nodeBitmapIndexscan.c b/src/backend/executor/nodeBitmapIndexscan.c
index d3fbf348332..6c14b8a4130 100644
--- a/src/backend/executor/nodeBitmapIndexscan.c
+++ b/src/backend/executor/nodeBitmapIndexscan.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/executor/nodeBitmapIndexscan.c,v 1.22 2007/01/05 22:19:28 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/executor/nodeBitmapIndexscan.c,v 1.23 2007/05/25 17:54:25 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -198,10 +198,12 @@ ExecEndBitmapIndexScan(BitmapIndexScanState *node)
#endif
/*
- * close the index relation
+ * close the index relation (no-op if we didn't open it)
*/
- index_endscan(indexScanDesc);
- index_close(indexRelationDesc, NoLock);
+ if (indexScanDesc)
+ index_endscan(indexScanDesc);
+ if (indexRelationDesc)
+ index_close(indexRelationDesc, NoLock);
}
/* ----------------------------------------------------------------
@@ -257,6 +259,14 @@ ExecInitBitmapIndexScan(BitmapIndexScan *node, EState *estate, int eflags)
indexstate->ss.ss_currentScanDesc = NULL;
/*
+ * If we are just doing EXPLAIN (ie, aren't going to run the plan),
+ * stop here. This allows an index-advisor plugin to EXPLAIN a plan
+ * containing references to nonexistent indexes.
+ */
+ if (eflags & EXEC_FLAG_EXPLAIN_ONLY)
+ return indexstate;
+
+ /*
* Open the index relation.
*
* If the parent table is one of the target relations of the query, then