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https://issues.apache.org/jira/browse/LUCENE-3892?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13262777#comment-13262777
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Robert Muir commented on LUCENE-3892:
-------------------------------------

Patch does not yet fix ivy-bootstrap. Ivy-bootstrap still only tries 
repo1.maven.org. We need a different strategy for that: either we depend on 
try-catch from ant contrib (undesired), use custom ant task (grrrr), or use a 
chain of targets with fail-on-error=false unless the file already exists and 
checksum at the end... Lemme see if i can fix ivy-bootstrap, too!
                
> Add a useful intblock postings format (eg, FOR, PFOR, PFORDelta, 
> Simple9/16/64, etc.)
> -------------------------------------------------------------------------------------
>
>                 Key: LUCENE-3892
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3892
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Michael McCandless
>              Labels: gsoc2012, lucene-gsoc-12
>             Fix For: 4.0
>
>         Attachments: LUCENE-3892_settings.patch
>
>
> On the flex branch we explored a number of possible intblock
> encodings, but for whatever reason never brought them to completion.
> There are still a number of issues opened with patches in different
> states.
> Initial results (based on prototype) were excellent (see
> http://blog.mikemccandless.com/2010/08/lucene-performance-with-pfordelta-codec.html
> ).
> I think this would make a good GSoC project.

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