SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function dateDiff (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\'
