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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (LUCENE-2426) change sort order to binary order
Date Thu, 24 Jun 2010 13:37:49 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-2426?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael McCandless resolved LUCENE-2426.
----------------------------------------

    Resolution: Fixed

> change sort order to binary order
> ---------------------------------
>
>                 Key: LUCENE-2426
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2426
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Index
>    Affects Versions: 3.1
>            Reporter: Robert Muir
>             Fix For: 4.0
>
>         Attachments: LUCENE-2426.patch, LUCENE-2426.patch, LUCENE-2426_automaton.patch
>
>
> Since flexible indexing, terms are now represented as byte[], but for backwards compatibility
reasons, they are not sorted as byte[], but instead as if they were char[].
> I think its time to look at sorting terms as byte[]... this would yield the following
improvements:
> * terms are more opaque by default, they are byte[] and sort as byte[]. I think this
would make lucene friendlier to customizations.
> * numerics and collation are then free to use their own encoding (full byte) rather than
avoiding the use of certain bits to remain compatible with char[] sort order.
> * automaton gets simpler because as in LUCENE-2265, it uses byte[] too, and has special
hacks because terms are sorted as char[]

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