[jira] Commented: (LUCENE-2189) Simple9 (de)compression

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[jira] Commented: (LUCENE-2189) Simple9 (de)compression

Tim Allison (Jira)

    [ https://issues.apache.org/jira/browse/LUCENE-2189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12928169#action_12928169 ]

Michael McCandless commented on LUCENE-2189:

bq. Any one test the performance of it?

Not that I know of.

Someone needs to convert the Simple9/16 impl here to match the incremental API that VariableIntBlockCodec wants, ie provide a .add(int value), returning an int count of how many values were just flushed to the output.  Ie, it'd return a series of 0's and then suddenly like 7 indicating 7 values were just written.

Once we do that, it's trivial to make a codec out of it...

> Simple9 (de)compression
> -----------------------
>                 Key: LUCENE-2189
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2189
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Index
>            Reporter: Paul Elschot
>            Priority: Minor
>         Attachments: LUCENE-2189a.patch, LUCENE-2189a.patch, Simple16Codec.java
> Simple9 is an alternative for VInt.

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