diff --git a/sharding-core/sharding-core-parse/sharding-core-parse-mysql/src/main/antlr4/imports/mysql/DMLStatement.g4 b/sharding-core/sharding-core-parse/sharding-core-parse-mysql/src/main/antlr4/imports/mysql/DMLStatement.g4
index 4272969185c05a..0e25e2224d3f96 100644
--- a/sharding-core/sharding-core-parse/sharding-core-parse-mysql/src/main/antlr4/imports/mysql/DMLStatement.g4
+++ b/sharding-core/sharding-core-parse/sharding-core-parse-mysql/src/main/antlr4/imports/mysql/DMLStatement.g4
@@ -49,6 +49,7 @@ assignment
 
 assignmentValues
     : LP_ assignmentValue (COMMA_ assignmentValue)* RP_
+    | LP_ RP_
     ;
 
 assignmentValue