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Posted to dev@lucene.apache.org by "Elliott Bradshaw (JIRA)" <ji...@apache.org> on 2015/11/21 17:04:11 UTC
[jira] [Commented] (LUCENE-6766) Make index sorting a first-class
citizen
[ https://issues.apache.org/jira/browse/LUCENE-6766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15020548#comment-15020548 ]
Elliott Bradshaw commented on LUCENE-6766:
------------------------------------------
This would be great!
+1
> Make index sorting a first-class citizen
> ----------------------------------------
>
> Key: LUCENE-6766
> URL: https://issues.apache.org/jira/browse/LUCENE-6766
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Priority: Minor
> Attachments: LUCENE-6766.patch
>
>
> Today index sorting is a very expert feature. You need to use a custom merge policy, custom collectors, etc. I would like to explore making it a first-class citizen so that:
> - the sort order could be configured on IndexWriterConfig
> - segments would record the sort order that was used to write them
> - IndexSearcher could automatically early terminate when computing top docs on a sort order that is a prefix of the sort order of a segment (and if the user is not interested in totalHits).
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