[
https://issues.apache.org/jira/browse/LUCENE-5081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13696103#comment-13696103
]
Uwe Schindler commented on LUCENE-5081:
---------------------------------------
I dont think it should use CachingWrapperFilter as a "workaround" and assuming
its a FixedBitSet.
If it needs a FixedBitSet, it can use the filter, get its DocIdSetIterator and
pass it to FixedBitSet to create a copy. The use case in BlockJoinQuery has
nothing to do with filters, it needs a special implementation to seek backwards
through the result set. So it has to clone the bitset by itsself by explicitely
creating a FixedBitSet internally (if it detects that the DocIdSet returned by
the filter is not a FixedBitSet).
> Compress doc ID sets
> --------------------
>
> Key: LUCENE-5081
> URL: https://issues.apache.org/jira/browse/LUCENE-5081
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Assignee: Adrien Grand
> Priority: Minor
> Attachments: LUCENE-5081.patch
>
>
> Our filters use bit sets a lot to store document IDs. However, it is likely
> that most of them are sparse hence easily compressible. Having efficient
> compressed sets would allow for caching more data.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
