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Posted to dev@lucene.apache.org by "Paul Elschot (JIRA)" <ji...@apache.org> on 2008/07/19 00:49:32 UTC
[jira] Commented: (LUCENE-1340) Make it posible not to include TF
information in index
[ https://issues.apache.org/jira/browse/LUCENE-1340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12614909#action_12614909 ]
Paul Elschot commented on LUCENE-1340:
--------------------------------------
Ok ok. I'll start working on adding a Filter as a clause to BooleanQuery. Will take some time though, there's a holiday coming up.
> Make it posible not to include TF information in index
> ------------------------------------------------------
>
> Key: LUCENE-1340
> URL: https://issues.apache.org/jira/browse/LUCENE-1340
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Index
> Reporter: Eks Dev
> Priority: Minor
> Attachments: LUCENE-1340.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Term Frequency is typically not needed for all fields, some CPU (reading one VInt less and one X>>>1...) and IO can be spared by making pure boolen fields possible in Lucene. This topic has already been discussed and accepted as a part of Flexible Indexing... This issue tries to push things a bit faster forward as I have some concrete customer demands.
> benefits can be expected for fields that are typical candidates for Filters, enumerations, user rights, IDs or very short "texts", phone numbers, zip codes, names...
> Status: just passed standard test (compatibility), commited for early review, I have not tried new feature, missing some asserts and one two unit tests
> Complexity: simpler than expected
> can be used via omitTf() (who used omitNorms() will know where to find it :)
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