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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-4527) CompressingStoredFieldsFormat: encode numStoredFields more efficiently
Date Sun, 04 Nov 2012 12:24:12 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-4527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13490179#comment-13490179
] 

Robert Muir commented on LUCENE-4527:
-------------------------------------

And of course for this test (and any other test of compressing stored fields), that 
"fake" wikipedia corpus being used is totally invalid because all documents are 
truncated to a specific length :)
                
> CompressingStoredFieldsFormat: encode numStoredFields more efficiently
> ----------------------------------------------------------------------
>
>                 Key: LUCENE-4527
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4527
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Adrien Grand
>            Assignee: Adrien Grand
>            Priority: Minor
>             Fix For: 4.1
>
>         Attachments: LUCENE-4527.patch
>
>
> Another interesting idea from Robert: many applications have a schema and all documents
are likely to have the same number of stored fields. We could save space by using packed ints
and the same kind of optimization as {{ForUtil}} (requiring only one VInt if all values are
equal).

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