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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 12:20:12 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-4527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13490178#comment-13490178
] 

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

I'm not sure I like 4 vints for min and lengths? If documents (including all fields) are largish
then we might be making it worse.

Is the min really worth it? It seems like too much overhead.
                
> 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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