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From "John Wang" <>
Subject docid set compression and boolean docid set operations
Date Wed, 10 Sep 2008 21:08:40 GMT
Hi guys:

     We have build this on top of the lucene 1.4. api/refactoring for docid
sets and docIdIterater.

     We've implemented the p4Delta compression algorithm presented at

     We've been using this in production here at LinkedIn and would love to
contribute it into lucene.

     We currently open sourced it at:

     Please let us know if it is thing you guys want to proceed, if so, what
are the steps we should take.



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