Re: custom sorting of search result

[Alexandre Rafalovitch <ar...@gmail.com>]

Latest versions of Solr have collapsing and expanding plugins,
reranking plugins and post-filters. Some combinations of these seem
like it might be relevant.

And, of course, there is always carrot2 clustering.

Regards,
   Alex.
Personal: http://www.outerthoughts.com/ and @arafalov
Solr resources and newsletter: http://www.solr-start.com/ and @solrstart
Solr popularizers community: https://www.linkedin.com/groups?gid=6713853


On 3 November 2014 18:07,  <al...@aim.com> wrote:
> Hello,
>
>
> We need to order solr search results according to specific rules.
>
>
> I will explain with an example. Let say solr returns 1000 results for query "sport".
> These results must be divided into three buckets according to rules that come from database.
> Then one doc must be chosen from each bucket and put in the results subsequently until all buckets are empty.
>
>
> One approach was to modify/override solr code where it gets results, sorts them and return #rows of elements.
> However, from the code in Weight.java scoreAll function we see that docs have only internal document id and nothing else.
>
>
> We expect unique solr document id in order to match documents with the custom scoring.
> We also  see that Lucene code handles those doc ids to scoreAll function, and for now We do not want to modify Lucene code
>  and prefer to solve this issue as a Solr  plugin .
>
>
> Any ideas are welcome.
>
>
>
>
> Thanks.
> Alex.
>
>
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>