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SphinxClient::setGroupDistinct

(PECL sphinx >= 0.1.0)

SphinxClient::setGroupDistinctSet attribute name for per-group distinct values count calculations

説明

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.

パラメータ

attribute

A string containing group-by attribute name.

返り値

成功した場合に TRUE を、失敗した場合に FALSE を返します。

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