HappenLee commented on code in PR #47947:
URL: https://github.com/apache/doris/pull/47947#discussion_r1957361450


##########
be/src/pipeline/exec/data_queue.cpp:
##########
@@ -149,9 +149,8 @@ void 
DataQueue::push_block(std::unique_ptr<vectorized::Block> block, int child_i
             _sink_dependencies[child_idx]->block();
         }
         _cur_blocks_total_nums++;
-        if (_source_dependency) {

Review Comment:
   if some sink/source operator init failed, the source dependency maybe nullptr



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