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https://issues.apache.org/jira/browse/LUCENE-2127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12913096#action_12913096
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Uwe Schindler commented on LUCENE-2127:
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Grant: In your latest patch, the collector seems to ignore docBase (or the next
IndexReader), so the whole thing only works with optimized indexes. It should
simply store the base doc and add it on new ScoreDoc.
> Improved large result handling
> ------------------------------
>
> Key: LUCENE-2127
> URL: https://issues.apache.org/jira/browse/LUCENE-2127
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Search
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Priority: Minor
> Attachments: LUCENE-2127.patch, LUCENE-2127.patch
>
>
> 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.
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