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# dbplus_rkeys

(4.1.0 - 4.2.3 only)

dbplus_rkeys -- Specify new primary key for a relation

## Description

resource dbplus_rkeys ( resource relation, mixed domlist)

Warning
This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.

dbplus_rkeys() will replace the current primary key for `relation` with the combination of domains specified by `domlist`.

`domlist` may be passed as a single domain name string or as an array of domain names.

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