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From "Michael Busch (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-834) Payload Queries
Date Tue, 17 Apr 2007 22:13:15 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12489562
] 

Michael Busch commented on LUCENE-834:
--------------------------------------

Yes, I was mainly thinking about large documents. I think in general memory consumption during
search should depend on query complexity, not on the actual index.
Besides, I don't see much benefits in gathering all payloads up front and processing them
thereafter (maybe I overlook some?). What about having a method in BoostingTermScorer like:

protected float calculateTermBoost(TermPostions tp);

which implements averaging per default but can be overwritten by subclasses? An optimized
implementation might e. g. consider just to read the first x% position payloads for large
docs and estimate the boost for performance reasons.

> Payload Queries
> ---------------
>
>                 Key: LUCENE-834
>                 URL: https://issues.apache.org/jira/browse/LUCENE-834
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: Search
>            Reporter: Grant Ingersoll
>         Assigned To: Grant Ingersoll
>            Priority: Minor
>         Attachments: boosting.term.query.patch
>
>
> Now that payloads have been implemented, it will be good to make them searchable via
one or more Query mechanisms.  See http://wiki.apache.org/lucene-java/Payload_Planning for
some background information and https://issues.apache.org/jira/browse/LUCENE-755 for the issue
that started it all.  

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