SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function toYYYYMMDDhhmmss (children 1)
     ExpressionList (children 1)
      Function toDate (children 1)
       ExpressionList (children 1)
        Literal \'2017-07-21\'
