diff --git a/dbms/src/Flash/Coprocessor/DAGRequest.cpp b/dbms/src/Flash/Coprocessor/DAGRequest.cpp
index 1b66636288b..cecbb090aff 100644
--- a/dbms/src/Flash/Coprocessor/DAGRequest.cpp
+++ b/dbms/src/Flash/Coprocessor/DAGRequest.cpp
@@ -61,9 +61,7 @@ class ListBasedExecutorIdGenerator
                 return gen_id;
             }
         }
-        throw Exception(fmt::format(
-            "We have failed five times to generate a unique id for list base executor, exists ids are: [{}]",
-            fmt::join(executor_id_set, ",")));
+        throw Exception(fmt::format("We have failed five times to generate a unique id for list base executor, exists ids are: [{}]", fmt::join(executor_id_set, ",")));
     }
 
 private:
@@ -100,7 +98,7 @@ class ListBasedExecutorIdGenerator
             return fmt::format("expand_{}", current_id++);
         default:
             throw TiFlashException(
-                fmt::format("Unsupported executor in DAG request: {}", executor.DebugString()),
+                fmt::format("Unsupported executor in list based DAG request: {}", executor.DebugString()),
                 Errors::Coprocessor::Unimplemented);
         }
     }
diff --git a/dbms/src/Flash/Coprocessor/DAGRequest.h b/dbms/src/Flash/Coprocessor/DAGRequest.h
index ba449a29ebc..8924722a7e0 100644
--- a/dbms/src/Flash/Coprocessor/DAGRequest.h
+++ b/dbms/src/Flash/Coprocessor/DAGRequest.h
@@ -48,8 +48,6 @@ class DAGRequest
 private:
     void checkOrSetExecutorId();
 
-    void initOutputInfo();
-
 public:
     tipb::DAGRequest * dag_request;