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From "Grant Ingersoll (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-834) Payload Queries
Date Sat, 17 Mar 2007 23:03:09 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12481896
] 

Grant Ingersoll commented on LUCENE-834:
----------------------------------------

I should add, one open question is how big the array in the BoostingSpanScorer should be preallocated
to.  I set it to 256, but I would imagine it could be smaller???? but I'm not sure.  Probably
should be configurable, but I didn't go that route.  I would think, for practical purposes,
that payloads should be kept small for the most part, otherwise performance will most likely
suffer.  What do others think?  Have you seen papers/applications where the engine is storing
large amounts of data on a per term basis?

I could see where it might be useful to write VInts, etc. to the payload.  Perhaps a refactoring
of some of the writing/reading methods to allow for usage of them may be useful.  Just thinking
out loud...

> 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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