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From "Aleksey Yeschenko (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-4545) add cql support for batchlog
Date Thu, 13 Sep 2012 18:10:07 GMT


Aleksey Yeschenko commented on CASSANDRA-4545:

We can create two versions - BEGIN .. APPLY ATOMICALLY and BEGIN .. APPLY NON-ATOMICALLY (or
BEGIN NON-ATOMIC BATCH and BEGIN ATOMIC BATCH), or some better names. This comment is not
about names.
And leave the BEGIN .. APPLY syntax. Make a setting in cassandra.yaml that would determine
how to treat BEGIN .. BATCH statements - as atomic or non-atomic. And make atomic the default.
Upgraders without the setting will get the old behaviour - no atomicity, no unpleasant surprises.
New users will get atomicity by default, which, I agree, is a better default.

Having two versions of the statement will also allow users let users to choose on per-query
basis, without changing any settings.
> add cql support for batchlog
> ----------------------------
>                 Key: CASSANDRA-4545
>                 URL:
>             Project: Cassandra
>          Issue Type: Sub-task
>            Reporter: Jonathan Ellis
>            Assignee: Aleksey Yeschenko
> Need to expose the equivalent of atomic_batch_mutate (CASSANDRA-4542) to CQL3.

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