index in build pending state - maintenance is disabled

  Explanation:  This index is now in build-pending state  and  can
  not   currently  be  used  for  queries.   An  ALTER  INDEX  ...
  MAINTENANCE IS ENABLED statement must be used to re-enable  this
  index.   Only  perform  this final step when all partitions have
  been rebuilt.  Note that  the  table  on  which  this  index  is
  defined  may  not  be modified (INSERT, UPDATE, or DELETE) while
  indices are in the build pending state.

  User Action:  This is just a  warning  to  remind  the  database
  administrator of additional tasks which must be performed.