B-tree node Ikeys not in lexical order
  found key "<str>" in b-tree node at <num>:<num>:<num>
  followed by key "<str>" in b-tree node at <num>:<num>:<num>

  Explanation:  Each entry in a b-tree node contains a  compressed
  key followed by a compressed dbkey.  The keys stored in a b-tree
  node must be in ascending lexical order.  The keys stored in the
  current  b-tree  node are out of order.  Further verification of
  the b-tree is abandoned.

  User Action:  Drop and recreate the index, or correct the  error
  with  the  RMU  Restore  command or the SQL IMPORT statement and
  verify the database again.