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https://issues.apache.org/jira/browse/CASSANDRA-6936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16188967#comment-16188967
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Jeff Jirsa commented on CASSANDRA-6936:
---------------------------------------

Realize this ticket is mostly idle, but CASSANDRA-13553 has a similar need 
(byte order comparable types to map into rocksdb storage model)  and in that 
Dikang found this, whic seems interesting: https://github.com/ndimiduk/orderly



> Make all byte representations of types comparable by their unsigned byte 
> representation only
> --------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6936
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6936
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Benedict
>            Assignee: Branimir Lambov
>              Labels: compaction, performance
>             Fix For: 4.x
>
>
> This could be a painful change, but is necessary for implementing a 
> trie-based index, and settling for less would be suboptimal; it also should 
> make comparisons cheaper all-round, and since comparison operations are 
> pretty much the majority of C*'s business, this should be easily felt (see 
> CASSANDRA-6553 and CASSANDRA-6934 for an example of some minor changes with 
> major performance impacts). No copying/special casing/slicing should mean 
> fewer opportunities to introduce performance regressions as well.
> Since I have slated for 3.0 a lot of non-backwards-compatible sstable 
> changes, hopefully this shouldn't be too much more of a burden.



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