[jira] Commented: (LUCENE-2127) Improved large result handling

["Grant Ingersoll (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-2127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12796804#action_12796804 ] 

Grant Ingersoll commented on LUCENE-2127:
-----------------------------------------

I've started work on this by looking at a collector that does sorting after all the results are collected.  Now, I could simply sort on an array of ScoreDocs, but I'd really like to be able to take advantage of the existing Sort/SortField/FieldComparator stuff, but it seems really geared towards using a PriorityQueue and managing an internal values array, whereas in my case I already have the array allocated that I want to manage (well, for the most part.)  

The obvious choice is to punt and just provide score and doc id sorting, but wanted to hear other people's thoughts

> Improved large result handling
> ------------------------------
>
>                 Key: LUCENE-2127
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2127
>             Project: Lucene - Java
>          Issue Type: New Feature
>            Reporter: Grant Ingersoll
>            Assignee: Grant Ingersoll
>            Priority: Minor
>
> Per http://search.lucidimagination.com/search/document/350c54fc90d257ed/lots_of_results#fbb84bd297d15dd5, it would be nice to offer some other Collectors that are better at handling really large number of results.  This could be implemented in a variety of ways via Collectors.  For instance, we could have a raw collector that does no sorting and just returns the ScoreDocs, or we could do as Mike suggests and have Collectors that have heuristics about memory tradeoffs and only heapify when appropriate.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


---------------------------------------------------------------------
To unsubscribe, e-mail: java-dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-dev-help@lucene.apache.org