(PHP 4 <= 4.1.0, PECL dbplus >= 0.9)
dbplus_rkeys — Specify new primary key for a relation
dbplus_rkeys() will replace the current primary key for relation with the combination of domains specified by domlist.
A relation opened by dbplus_open().
A combination of domains. May be passed as a single domain name string or as an array of domain names.
Returns resource on success or DBPLUS_ERR_UNKNOWN on failure.
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.