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authorThomas G. Lockhart <lockhart@fourpalms.org>1998-02-18 07:19:34 +0000
committerThomas G. Lockhart <lockhart@fourpalms.org>1998-02-18 07:19:34 +0000
commit6c1abf0d3c41259d93a6cacb0020195e8fe907b1 (patch)
tree719a9e03339dd8fd4a300535c01d78e23cfba7a3 /src/backend/executor/nodeResult.c
parent1aa93cbfa68ae852e94e5edb02d359950a6deef8 (diff)
downloadpostgresql-6c1abf0d3c41259d93a6cacb0020195e8fe907b1.tar.gz
postgresql-6c1abf0d3c41259d93a6cacb0020195e8fe907b1.zip
Fix from Vadim for simple-minded case SELECT 1 WHERE 1 IN (SELECT 1)
used in regression tests. No longer core dumps.
Diffstat (limited to 'src/backend/executor/nodeResult.c')
-rw-r--r--src/backend/executor/nodeResult.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/backend/executor/nodeResult.c b/src/backend/executor/nodeResult.c
index 7dcb9376ca0..8c2edfd44a2 100644
--- a/src/backend/executor/nodeResult.c
+++ b/src/backend/executor/nodeResult.c
@@ -27,7 +27,7 @@
* SeqScan (emp.all)
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/executor/nodeResult.c,v 1.6 1998/02/13 03:26:52 vadim Exp $
+ * $Header: /cvsroot/pgsql/src/backend/executor/nodeResult.c,v 1.7 1998/02/18 07:19:34 thomas Exp $
*
*-------------------------------------------------------------------------
*/
@@ -291,7 +291,8 @@ ExecReScanResult(Result *node, ExprContext *exprCtxt, Plan *parent)
* if chgParam of subnode is not null then plan
* will be re-scanned by first ExecProcNode.
*/
- if (((Plan*) node)->lefttree->chgParam == NULL)
+ if (((Plan*) node)->lefttree &&
+ ((Plan*) node)->lefttree->chgParam == NULL)
ExecReScan (((Plan*) node)->lefttree, exprCtxt, (Plan *) node);
}