diff --git a/backend/apps/chat/task/llm.py b/backend/apps/chat/task/llm.py
index fa9cb52a..7b46c83b 100644
--- a/backend/apps/chat/task/llm.py
+++ b/backend/apps/chat/task/llm.py
@@ -598,7 +598,6 @@ def generate_with_sub_sql(self, sql, sub_mappings: list):
                 full_dynamic_text += chunk.get('content')
             if chunk.get('reasoning_content'):
                 full_thinking_text += chunk.get('reasoning_content')
-            yield chunk
 
         dynamic_sql_msg.append(AIMessage(full_dynamic_text))