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Posted to dev@lucene.apache.org by "Uwe Schindler (JIRA)" <ji...@apache.org> on 2010/08/20 13:02:16 UTC

[jira] Issue Comment Edited: (LUCENE-2514) Change Term to use bytes

    [ https://issues.apache.org/jira/browse/LUCENE-2514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12900663#action_12900663 ] 

Uwe Schindler edited comment on LUCENE-2514 at 8/20/10 7:00 AM:
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Yah, the factory makes it easy for new users to create string ranges (as one exspects, like with NRQ, NRF, FCRF), but as the query itsself works on BytesRef, its ctor takes BytesRef. With the static factory, compile errors when you use null as bounds are not happening.

Do we need a LessString() or should we completely remove the useless static factories named Less in the filter?

      was (Author: thetaphi):
    Yah, the factory makes it easy for new users to create string ranges (as one exspects, like with NRQ, NRF, FCRF), but as the query itsself works on BytesRef, its ctor takes BytesRef. With the static factory, compile errors when you use null as bounds are not happening.
  
> 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
>            Assignee: Uwe Schindler
>         Attachments: LUCENE-2514-MTQPagedBytes.patch, LUCENE-2514-MTQPagedBytes.patch, LUCENE-2514-MTQPagedBytes.patch, LUCENE-2514-surrogates-dance.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514.patch, LUCENE-2514_collatedrange.patch, LUCENE-2514_collatedrange.patch, LUCENE-2514_qp.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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