SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function age (children 1)
     ExpressionList (children 4)
      Literal \'minute\'
      Function materialize (children 1)
       ExpressionList (children 1)
        Function toDate (children 1)
         ExpressionList (children 1)
          Literal \'2017-12-31\'
      Function toDate (children 1)
       ExpressionList (children 1)
        Literal \'2016-01-01\'
      Literal \'UTC\'
