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https://issues.apache.org/jira/browse/LUCENE-5739?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14019029#comment-14019029
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Adrien Grand commented on LUCENE-5739:
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I know there is a long history of discussions around supporting negative values
in {{writeVLong}} but I think it would be nice so that the whole long range
could be readable/writable with zig-zag encoding?
> Add zig-zag encoding support to DataInput/DataOutput
> ----------------------------------------------------
>
> Key: LUCENE-5739
> URL: https://issues.apache.org/jira/browse/LUCENE-5739
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Assignee: Adrien Grand
> Priority: Minor
> Fix For: 4.9, 5.0
>
> Attachments: LUCENE-5739.patch
>
>
> It would be convenient to have support for zig-zag-encoded integers in
> DataInput/DataOutput. There are not many places that use that feature today
> but I think it's quite common to need to read/write small signed values.
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