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https://issues.apache.org/jira/browse/CASSANDRA-13462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15974559#comment-15974559
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Andrew Jefferson commented on CASSANDRA-13462:
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Thanks for the quick reply - Is this behaviour documented somewhere?
I think it would be quite a feat to find someone who was relying on this
behaviour!
> Unexpected behaviour with range queries on UUIDs
> ------------------------------------------------
>
> Key: CASSANDRA-13462
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13462
> Project: Cassandra
> Issue Type: Bug
> Reporter: Andrew Jefferson
>
> My expectation is that UUIDs should behave as 128 bit integers for comparison.
> However it seems that the Cassandra implementation compares first the uuid
> version number, then the remaining values of the uuid.
> e.g. in C*
> 10000000-0000-3000-0000-000000000000
> is greater than
> 20000000-0000-1000-0000-000000000000
> (n.b. the 13th value is the uuid version)
> - this is consistent across range queries and using ORDER BY
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