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https://issues.apache.org/jira/browse/CASSANDRA-6737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13905931#comment-13905931
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Jonathan Ellis commented on CASSANDRA-6737:
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FTR I'm at the point where other things being equal I'd prefer to put
optimizations in 2.1.
> A batch statements on a single partition should not create a new CF object
> for each update
> ------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-6737
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6737
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Sylvain Lebresne
> Assignee: Sylvain Lebresne
> Fix For: 2.0.6
>
> Attachments: 6737.txt
>
>
> BatchStatement creates a new ColumnFamily object (as well as a new
> RowMutation object) for every update in the batch, even if all those update
> are actually on the same partition. This is particularly inefficient when
> bulkloading data into a single partition (which is not all that uncommon).
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