AlterQuery  enum_test (children 2)
 ExpressionList (children 1)
  AlterCommand MODIFY_COLUMN (children 1)
   ColumnDeclaration e (children 1)
    DataType Enum8 (children 1)
     ExpressionList (children 3)
      Function equals (children 1)
       ExpressionList (children 2)
        Literal \'IU\'
        Literal UInt64_1
      Function equals (children 1)
       ExpressionList (children 2)
        Literal \'WS\'
        Literal UInt64_2
      Function equals (children 1)
       ExpressionList (children 2)
        Literal \'PS\'
        Literal UInt64_3
 Identifier enum_test
