SphinxClient::setGroupBy
Set grouping attribute
Description
public bool SphinxClient::setGroupBy
( string $attribute
, int $func
[, string $groupsort = "@group desc"
] )
Grouping feature is very similar to GROUP BY clause in SQL.
Results produced by this function call are going to be the same as produced
by the following pseudo code:
SELECT ... GROUP BY $func($attribute) ORDER BY $groupsort.
Parameters
-
attribute
-
A string containing group-by attribute name.
-
func
-
Constant, which sets a function applied to the attribute value in order
to compute group-by key.
-
groupsort
-
An optional clause controlling how the groups are sorted.
Return Values
Returns TRUE on success or FALSE on failure.