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Date: Thu, 24 Jun 2010 16:38:51 -0400 (EDT)
From: "Robert Muir (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
Subject: [jira] Commented: (LUCENE-2514) Change Term to use bytes
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    [ https://issues.apache.org/jira/browse/LUCENE-2514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12882318#action_12882318 ] 

Robert Muir commented on LUCENE-2514:
-------------------------------------

Uwe thanks, I would prefer if you did MTQ too.

I agree it should completely use BytesRef... i think it should also not create new Terms even until rewriting.

For example, currently the priority queue in TopTerms does BytesRef -> String conversion and creates a new Term for each add, but this might be entirely useless as it could fall off the pq, so i think its ScoreTerm or whatever should not hold term at all but just bytesref.

> Change Term to use bytes
> ------------------------
>
>                 Key: LUCENE-2514
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2514
>             Project: Lucene - Java
>          Issue Type: Task
>          Components: Search
>    Affects Versions: 4.0
>            Reporter: Robert Muir
>         Attachments: LUCENE-2514-surrogates-dance.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514.patch
>
>
> in LUCENE-2426, the sort order was changed to codepoint order.
> unfortunately, Term is still using string internally, and more importantly its compareTo() uses the wrong order [utf-16].
> So MultiTermQuery, etc (especially its priority queues) are currently wrong.
> By changing Term to use bytes, we can also support terms encoded as bytes such as numerics, instead of using
> strange string encodings.

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