diff --git a/result_set.go b/result_set.go
index 02f0b3e1..d124071b 100644
--- a/result_set.go
+++ b/result_set.go
@@ -94,6 +94,7 @@ const (
 	ErrorCode_E_BAD_PERMISSION        ErrorCode = ErrorCode(nebula.ErrorCode_E_BAD_PERMISSION)
 	ErrorCode_E_SEMANTIC_ERROR        ErrorCode = ErrorCode(nebula.ErrorCode_E_SEMANTIC_ERROR)
 	ErrorCode_E_PARTIAL_SUCCEEDED     ErrorCode = ErrorCode(nebula.ErrorCode_E_PARTIAL_SUCCEEDED)
+	ErrorCode_E_QUERY_TIMEDOUT        ErrorCode = ErrorCode(nebula.ErrorCode_E_QUERY_TIMEDOUT)
 )
 
 func GenResultSet(resp *graph.ExecutionResponse) (*ResultSet, error) {
@@ -486,6 +487,10 @@ func (res ResultSet) IsPartialSucceed() bool {
 	return res.GetErrorCode() == ErrorCode_E_PARTIAL_SUCCEEDED
 }
 
+func (res ResultSet) IsQueryTimeout() bool {
+	return res.GetErrorCode() == ErrorCode_E_QUERY_TIMEDOUT
+}
+
 func (res ResultSet) hasColName(colName string) bool {
 	if _, ok := res.colNameIndexMap[colName]; ok {
 		return true