error   fetching   data   record   from   B-tree   index    node
  <num>:<num>:<num>

  Explanation:  An error occurred during a fetch of a data  record
  from a B-tree node.

  User Action:  Ascertain if the  index  is  corrupt  by  manually
  verifying  related  index  nodes  after  dumping  pages  of  the
  database.  If the index is corrupt, rebuild it.