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From "Alex Petrov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-14869) Range.subtractContained produces incorrect results when used on full ring
Date Mon, 19 Nov 2018 08:03:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-14869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16691354#comment-16691354
] 

Alex Petrov commented on CASSANDRA-14869:
-----------------------------------------

[~Gerrrr] thank you for the patch!

Committed to [3.0|https://git1-us-west.apache.org/repos/asf?p=cassandra.git;a=commit;h=c6f822c2a07e0e7c8e4af72523fe62d181c71e56]
and merged up to [3.11|https://git1-us-west.apache.org/repos/asf?p=cassandra.git;a=commit;h=78c7d57ebb28ac688cd287d7d8b8f483a99d0135]
and [trunk|https://git1-us-west.apache.org/repos/asf?p=cassandra.git;a=commit;h=13108037177a30e103a84bca5dadb38d1c090453].

> Range.subtractContained produces incorrect results when used on full ring
> -------------------------------------------------------------------------
>
>                 Key: CASSANDRA-14869
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14869
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Aleksandr Sorokoumov
>            Assignee: Aleksandr Sorokoumov
>            Priority: Major
>             Fix For: 3.0.x, 3.11.x, 4.0.x
>
>         Attachments: range bug.jpg
>
>
> Currently {{Range.subtractContained}} returns incorrect results if minuend range covers
full ring and:
> * subtrahend range wraps around. For example, {{(50, 50] - (10, 100]}} returns {{\{(50,10],
(100,50]\}}} instead of {{(100,10]}}
> * subtrahend range covers the full ring as well. For example {{(50, 50] - (0, 0]}} returns
{{\{(0,50], (50,0]\}}} instead of {{\{\}}}



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