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Date: Fri, 3 Sep 2010 10:54:36 -0400 (EDT)
From: "Jonathan Ellis (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
Subject: [jira] Updated: (CASSANDRA-1450) Memtable flush causes bad
 "reversed" get_slice
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     [ https://issues.apache.org/jira/browse/CASSANDRA-1450?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis updated CASSANDRA-1450:
--------------------------------------

    Attachment: 1450.txt

patch applies reversed flag during collation from different data sources and makes QF.getColumnComparator package-private to make it more difficult to make the same mistake again.  unit test added to TableTest.

> Memtable flush causes bad "reversed" get_slice
> ----------------------------------------------
>
>                 Key: CASSANDRA-1450
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1450
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.7 beta 1
>         Environment: Cassandra Trunk
>            Reporter: Tyler L. Hobbs
>            Assignee: Jonathan Ellis
>             Fix For: 0.7 beta 2
>
>         Attachments: 1450.txt, reversed_slice_reproduce.txt
>
>
> If columns are inserted into a row before and after a memtable flush, a get_slice() after the flush with reversed=True will return incorrect results.  See attached patch to reproduce.

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