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-rw-r--r--src/backend/executor/nodeLimit.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/src/backend/executor/nodeLimit.c b/src/backend/executor/nodeLimit.c
index 66ea6aa3c35..bb28cf7d1db 100644
--- a/src/backend/executor/nodeLimit.c
+++ b/src/backend/executor/nodeLimit.c
@@ -134,8 +134,14 @@ ExecLimit(PlanState *pstate)
node->position - node->offset >= node->count)
{
node->lstate = LIMIT_WINDOWEND;
- /* Allow nodes to release or shut down resources. */
- (void) ExecShutdownNode(outerPlan);
+
+ /*
+ * If we know we won't need to back up, we can release
+ * resources at this point.
+ */
+ if (!(node->ps.state->es_top_eflags & EXEC_FLAG_BACKWARD))
+ (void) ExecShutdownNode(outerPlan);
+
return NULL;
}