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https://issues.apache.org/jira/browse/LUCENE-4858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13618404#comment-13618404
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Robert Muir commented on LUCENE-4858:
-------------------------------------
Just to be clear, I'm not against allowing someone to tradeoff relevance for
speed (even where the requested sort is e.g. by score), but I just think that
its way more important to make these tradeoffs clear in the APIs than to worry
about expert things like addIndexes.
By having good APIs that are clear about this (e.g. a "safe" way and also an
"unsafe" way) with good javadocs, then its more likely users will be happy and
not run into traps.
The stuff like addIndexes is still good, I just dont think its as important in
the big picture: its so esoteric that it need not even be addressed in the
initial commit. I know good APIs and javadocs arent as sexy as adding more
stuff to the index, but its much more important here IMO.
> Early termination with SortingMergePolicy
> -----------------------------------------
>
> Key: LUCENE-4858
> URL: https://issues.apache.org/jira/browse/LUCENE-4858
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Assignee: Adrien Grand
> Priority: Minor
> Fix For: 4.3
>
> Attachments: LUCENE-4858.patch, LUCENE-4858.patch
>
>
> Spin-off of LUCENE-4752, see
> https://issues.apache.org/jira/browse/LUCENE-4752?focusedCommentId=13606565&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13606565
> and
> https://issues.apache.org/jira/browse/LUCENE-4752?focusedCommentId=13607282&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13607282
> When an index is sorted per-segment, queries that sort according to the index
> sort order could be early terminated.
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