SphinxClient::setGroupDistinct

(PECL sphinx >= 0.1.0)

SphinxClient::setGroupDistinct — Set attribute name for per-group distinct values count calculations

Beschreibung

public SphinxClient::setGroupDistinct ( string $attribute ) : bool

Sets attribute name for per-group distinct values count calculations. Only available for grouping queries. For each group, all values of attribute will be stored, then the amount of distinct values will be calculated and returned to the client. This feature is similar to COUNT(DISTINCT) clause in SQL.

Parameter-Liste

attribute

A string containing group-by attribute name.

Rückgabewerte

Gibt bei Erfolg TRUE zurück. Im Fehlerfall wird FALSE zurückgegeben.