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Posted to dev@lucene.apache.org by "Uwe Schindler (JIRA)" <ji...@apache.org> on 2009/09/17 00:33:57 UTC
[jira] Issue Comment Edited: (LUCENE-1911) When using
QueryWrapperFilter with CachingWrapperFilter, QueryWrapperFilter returns a
DocIdSet that creates a Scorer, which gets cached rather than a bit set
[ https://issues.apache.org/jira/browse/LUCENE-1911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12756261#action_12756261 ]
Uwe Schindler edited comment on LUCENE-1911 at 9/16/09 3:32 PM:
----------------------------------------------------------------
- Added CHANGES.txt entry.
- Added a test to FieldCacheRangeFilter, that the iterators work correct and isCacheable() is false, when the index contains deleted docs and the range contains 0 (in this case TermDocs must be visited to test if a doc is deleted or has value 0 in cache).
I will go to bed now and commit tomorrow!
was (Author: thetaphi):
- Added CHANGES.txt entry.
- Added a test to FieldCacheRangeFilter, that the iterators work correct and isCacheable() is false, when the index contains deleted docs and the range contains 0 (in which case TermDocs must be visited to test if a doc is deleted or has value 0 in cache).
I will go to bed now and commit tomorrow!
> 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
>
>
> 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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