- 

$DBversion = 'XXX'; # will be replaced by the RM

if( CheckVersion( $DBversion ) ) {

    $dbh->do( "ALTER TABLE `search_field` MODIFY COLUMN `type` enum('','string','date','number','boolean','sum','isbn','stdno','year') NOT NULL" );

    $dbh->do( "UPDATE `search_field` SET type = 'year' WHERE name = 'date-of-publication'" );

    SetVersion( $DBversion );

    print "Upgrade to $DBversion done (Bug 14957 - Add 'year' type to improve sorting behaviour)\n";

}