SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function positiveModuloOrNull (children 1)
     ExpressionList (children 2)
      Function materialize (children 1)
       ExpressionList (children 1)
        Literal NULL
      Function materialize (children 1)
       ExpressionList (children 1)
        Literal NULL
