SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function arrayReduce (children 1)
     ExpressionList (children 2)
      Literal \'maxOrDefault\'
      Function arrayPopBack (children 1)
       ExpressionList (children 1)
        Function arrayPopBack (children 1)
         ExpressionList (children 1)
          Function array (children 1)
           ExpressionList (children 2)
            Function toDateTime (children 1)
             ExpressionList (children 1)
              Literal \'2011-04-05 14:19:19\'
            Literal NULL
