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From "Stefania (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-12516) Interned column identifiers can be overridden incorrectly
Date Mon, 12 Sep 2016 01:56:20 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-12516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15482775#comment-15482775
] 

Stefania commented on CASSANDRA-12516:
--------------------------------------

Patch here, CI still pending:

||3.0||trunk||
|[patch|https://github.com/stef1927/cassandra/commits/12516-3.0]|[patch|https://github.com/stef1927/cassandra/commits/12516]|
|[testall|http://cassci.datastax.com/view/Dev/view/stef1927/job/stef1927-12516-3.0-testall/]|[testall|http://cassci.datastax.com/view/Dev/view/stef1927/job/stef1927-12516-testall/]|
|[dtest|http://cassci.datastax.com/view/Dev/view/stef1927/job/stef1927-12516-3.0-dtest/]|[dtest|http://cassci.datastax.com/view/Dev/view/stef1927/job/stef1927-12516-dtest/]|


> Interned column identifiers can be overridden incorrectly
> ---------------------------------------------------------
>
>                 Key: CASSANDRA-12516
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12516
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Aleksey Yeschenko
>            Assignee: Stefania
>             Fix For: 3.0.x, 3.x
>
>
> As discovered by [~Stefania] in CASSANDRA-12423, our use of {{ColumnIdentifier.internedInstances}}
to map byte buffer column names to column identifiers is incorrect. It's possible for two
non-equal {{ColumnIdentifier}} instances to have the same {{ByteBuffer}} as raw name, and
yet different text representations, due to different column name types, leading to hard to
debug correctness issues.
> Should either amend the map to have the type as part of the key, or limit the use of
that map.



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