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https://issues.apache.org/jira/browse/CASSANDRA-9888?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benedict resolved CASSANDRA-9888.
---------------------------------
    Resolution: Fixed

Thanks. I've ninja fixed.

(Although I'm having weird problems running this test locally, it's an obvious 
fix from the stack trace)

> BTreeBackedRow and ComplexColumnData
> ------------------------------------
>
>                 Key: CASSANDRA-9888
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9888
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Benedict
>            Assignee: Benedict
>             Fix For: 3.0 alpha 1
>
>
> I found ArrayBackedRow a little hard to follow, especially around building, 
> so I've converted it to BTreeBackedRow, along with ComplexColumnData. Both 
> now rely on BTree.Builder, which introduces a little extra functionality to 
> permit these classes to be implemented more declaratively. Transformations of 
> these classes are also now uniform and more declarative, also depending on 
> some new functionality in BTree that permits applying a 
> transformation/filtration to an existing btree (this could be optimised at a 
> later date, but should suffice for now).
> The result is IMO both clearer and should scale more gracefully to larger 
> numbers of columns and complex cells.
> This hasn't taken all of the possible improvements of the back of this change 
> to their natural conclusion, as we are somewhat time pressed and I would 
> prefer to get the ball rolling with this first round.



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