AlterQuery  column_modify_test (children 3)
 ExpressionList (children 1)
  AlterCommand UPDATE (children 2)
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier id
     Literal UInt64_1
   ExpressionList (children 1)
    Assignment other_col (children 1)
     Literal UInt64_1
 Identifier column_modify_test
 Set