HappenLee commented on code in PR #43273:
URL: https://github.com/apache/doris/pull/43273#discussion_r1830907307


##########
be/src/pipeline/exec/set_source_operator.cpp:
##########
@@ -139,9 +138,21 @@ Status 
SetSourceOperatorX<is_intersect>::_get_data_in_hashtable(
                 _add_result_columns(local_state, value, block_size);
             }
         }
+    };
+
+    auto& iter = hash_table_ctx.iterator;
+    for (; iter != hash_table_ctx.hash_table->end() && block_size < 
batch_size; ++iter) {
+        add_result(iter->get_second());
     }
 
     *eos = iter == hash_table_ctx.hash_table->end();
+    if (*eos && hash_table_ctx.hash_table->has_null_key_data()) {
+        auto value = hash_table_ctx.hash_table->template 
get_null_key_data<RowRefListWithFlags>();

Review Comment:
   should here need copy? why here need check type?



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