imay commented on a change in pull request #1716: Avoid consistency problem
when has no more data
URL: https://github.com/apache/incubator-doris/pull/1716#discussion_r318955067
##########
File path: be/src/runtime/result_queue_mgr.cpp
##########
@@ -47,6 +47,10 @@ Status ResultQueueMgr::fetch_result(const TUniqueId&
fragment_instance_id, std::
// sentinel nullptr indicates scan end
if (*result == nullptr) {
*eos = true;
+ // put sentinel for consistency, avoid repeated invoking fetch
result when hava no rowbatch
+ if (queue) {
Review comment:
```suggestion
if (queue != nullptr) {
```
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