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-rw-r--r--src/backend/executor/nodeGather.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/backend/executor/nodeGather.c b/src/backend/executor/nodeGather.c
index cdc9c51bd15..4a700b7b30e 100644
--- a/src/backend/executor/nodeGather.c
+++ b/src/backend/executor/nodeGather.c
@@ -324,7 +324,10 @@ gather_readnext(GatherState *gatherstate)
Assert(!tup);
--gatherstate->nreaders;
if (gatherstate->nreaders == 0)
+ {
+ ExecShutdownGatherWorkers(gatherstate);
return NULL;
+ }
memmove(&gatherstate->reader[gatherstate->nextreader],
&gatherstate->reader[gatherstate->nextreader + 1],
sizeof(TupleQueueReader *)