AlterQuery  02484_substitute_udf (children 2)
 ExpressionList (children 1)
  AlterCommand MODIFY_TTL (children 1)
   ExpressionList (children 1)
    TTLElement (children 1)
     Function 02484_plusthreedays (children 1)
      ExpressionList (children 1)
       Identifier dt
 Identifier 02484_substitute_udf
