[jira] [Closed] (SOLR-4654) Integrate Lucene's sorting and early query termination capabilities into Solr

["Christine Poerschke (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-4654?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Christine Poerschke closed SOLR-4654.
-------------------------------------
    Resolution: Duplicate

Closing this out as partly (ideas 1 and 2) done in SOLR-5730 and if/when we wish to pursue the other ideas then separate new issues could be opened for those.

> Integrate Lucene's sorting and early query termination capabilities into Solr
> -----------------------------------------------------------------------------
>
>                 Key: SOLR-4654
>                 URL: https://issues.apache.org/jira/browse/SOLR-4654
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Adrien Grand
>            Priority: Trivial
>              Labels: gsoc2014
>
> I think there would be some interesting work to do to integrate Lucene's sorting and early query termination capabilities into Solr, in particular (just ideas, maybe they're not all interesting/useful):
>  - configuring a SortingMergePolicy,
>  - figuring out when the sort order of queries matches the sort order of the index segments,
>  - giving the ability to get approximated results when the query is not sorted but only boosted by the sort order of the index,
>  - integration with TimeLimitingCollector: maybe it's better to collect only half of all segments than to fully collect half of the segments,
>  - approximation of the number of matches based on the ratio of collected documents,
>  - ...



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