$this->error( "archive table does not exist", true );
} elseif ( !$db->fieldExists( 'revision', 'rev_len', __METHOD__ ) ) {
$this->output( "rev_len column does not exist\n\n", true );
$this->error( "archive table does not exist", true );
} elseif ( !$db->fieldExists( 'revision', 'rev_len', __METHOD__ ) ) {
$this->output( "rev_len column does not exist\n\n", true );