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https://issues.apache.org/jira/browse/LUCENE-1911?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler resolved LUCENE-1911.
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Resolution: Fixed
Committed revision: 816154. Thanks Thomas for reporting this!
> When using QueryWrapperFilter with CachingWrapperFilter, QueryWrapperFilter
> returns a DocIdSet that creates a Scorer, which gets cached rather than a bit
> set
> -------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-1911
> URL: https://issues.apache.org/jira/browse/LUCENE-1911
> Project: Lucene - Java
> Issue Type: Bug
> Reporter: Mark Miller
> Assignee: Uwe Schindler
> Fix For: 2.9
>
> Attachments: LUCENE-1911.patch, LUCENE-1911.patch, LUCENE-1911.patch,
> LUCENE-1911.patch, LUCENE-1911.patch, lucene_29_newapi_patched.png
>
>
> there is a large performance cost to this.
> The old impl for this type of thing, QueryFilter, recommends :
> @deprecated use a CachingWrapperFilter with QueryWrapperFilter
> The deprecated QueryFilter itself also suffers from the problem because its
> now implemented using a CachingWrapperFilter and QueryWrapperFilter.
> see
> http://search.lucidimagination.com/search/document/7f54715f14b8b7a/lucene_2_9_0rc4_slower_than_2_4_1
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