You can feed the hits vector into Quaere (http://quaere.codehaus.org/) to
accomplish the SQL-like grouping you desire, very easily. But I'm not sure
it'll be that much quicker. Worth a shot.
T
On 11/18/07, Haroldo Nascimento <[EMAIL PROTECTED]> wrote:
>
> I have a problem of performance when I need group the result do search
>
> I have the code below:
>
> for (int i = 0; i < hits.length(); i++) {
> doc = hits.doc(i);
>
> obj1 = doc.get(Constants.STATE_DESC_FIELD_LABEL);
> obj2 = doc.get(xxx);
> ...
> }
>
> I work with volume of data very big. The search process in 0.300
> seconds but when the object hits have much results, the time for get
> all objects is very big. The command hits.doc(i) is processed in 2
> second.
>
> Por exemplo. For hits.length() equals the 25.000 results, the time
> of "pos search" is 7 seconds.
>
> I get all result because I need group the result (remove the
> duplicate results).
>
> Is there any form in Lucene that group the result. I need of
> anything as the command "group by" of sql.
>
> Thanks.
>
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