NAME

       Search::Xapian::DatabaseVersionError -  DatabaseVersionError indicates that a database is
       in an unsupported format.

DESCRIPTION

         From time to time, new versions of Xapian will require the database format
         to be changed, to allow new information to be stored or new optimisations
         to be performed.  Backwards compatibility will sometimes be maintained, so
         that new versions of Xapian can open old databases, but in some cases
         Xapian will be unable to open a database because it is in too old (or new)
         a format.  This can be resolved either be upgrading or downgrading the
         version of Xapian in use, or by rebuilding the database from scratch with
         the current version of Xapian.