Sort for Retrieved Data

[Bing Li <lb...@gmail.com>]

Dear all,

I have a question when sorting retrieved data from Solr. As I know, Lucene
retrieves data according to the degree of keyword matching on text field
(partial matching).

If I search data by string field (complete matching), how does Lucene sort
the retrieved data?

If I add some filters, such as time, what about the sorting way?

If I just need to top ones, is it proper to just add rows?

If I want to add new sorting ways, how to do that?

Thanks so much!
Bing

Re: Sort for Retrieved Data

[Erick Erickson <er...@gmail.com>]

See belowl

On Fri, Jan 20, 2012 at 10:42 AM, Bing Li <lb...@gmail.com> wrote:
> Dear all,
>
> I have a question when sorting retrieved data from Solr. As I know, Lucene
> retrieves data according to the degree of keyword matching on text field
> (partial matching).
>
> If I search data by string field (complete matching), how does Lucene sort
> the retrieved data?
>
If scores match exactly, which may well be the case here, then the tiebreaker
is internal Lucene document id.

> If I add some filters, such as time, what about the sorting way?
>
It doesn't. Filters only restrict the result set, they have no influence
on sorting

> If I just need to top ones, is it proper to just add rows?
>
I don't understand what you're asking. If you want the top 100
rather than the top 10, yes you can increase the &rows
parameter or page (see &start).

> If I want to add new sorting ways, how to do that?

See the &sort parameter. This page comes up as the
first google search on "solr sort"....
http://lucene.apache.org/solr/tutorial.html

Best
Erick
>
> Thanks so much!
> Bing