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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2589) Add a variable-sized int block codec
Date Sun, 08 Aug 2010 19:15:16 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12896402#action_12896402
] 

Robert Muir commented on LUCENE-2589:
-------------------------------------

{quote}
Looks good to me - makes sense to have the size configurable. I wonder if we should start
some documentation either in src/test/../package.html or on the wiki which holds information
about how we test and which properties are recognized in the unit test.
{quote}

Actually i would prefer we just fix LuceneTestCase etc so that each test class has a single
static random seed, then there would be less parameters. Then we can change the failure message
to just say 'reproduce with -D....' and I think it would be best.

> Add a variable-sized int block codec
> ------------------------------------
>
>                 Key: LUCENE-2589
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2589
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Index
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: 4.0
>
>         Attachments: LUCENE-2589.patch, LUCENE-2589.patch
>
>
> We already have support for fixed block size int block codecs, making it very simple
to create a codec from a int encoder algorithms like FOR/PFOR.
> But algorithms like Simple9/16 are not fixed -- they encode a variable number of adjacent
ints at once, depending on the specific values of those ints.

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