(PHP 4 <= 4.3.0, PECL dbplus >= 0.9)
dbplus_xunlockrel — Free exclusive lock on relation
$relation
) : intReleases an exclusive lock previously obtained by dbplus_xlockrel().
This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.