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https://issues.apache.org/jira/browse/LUCENE-2589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael McCandless updated LUCENE-2589:
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Attachment: LUCENE-2589.patch
Attached patch.
Just like for the fixed int block case, I added a MockVariableIntBlockCodec (in
src/test), with a stupid variable-sized int block encoding.
These MockVariable/FixedIntBlockCodec serve as a good example of how one can
take any low-level int encoder and turn it into a Lucene codec.
I also increased randomness of the codecs picked for testing, by adding params
like block size (for both fixed & variable mock intblock codecs) and the freq
cutoff for Pulsing. So these configurations are now also randomly picked when
running tests (= spikes on the monster's back).
> 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
>
>
> 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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