SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 3)
    Function dateDiff (children 1)
     ExpressionList (children 3)
      Literal \'DAY\'
      Function toDate (alias arg_1) (children 1)
       ExpressionList (children 1)
        Literal \'2019-05-05\'
      Function toDate (alias arg_2) (children 1)
       ExpressionList (children 1)
        Literal \'2019-05-06\'
    Identifier arg_1
    Identifier arg_2
