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https://issues.apache.org/jira/browse/CASSANDRA-10699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16452069#comment-16452069
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Aleksey Yeschenko commented on CASSANDRA-10699:
-----------------------------------------------

bq. With this change, will schema alterations be versioned? I think this would 
be helpful when plugging in other storage engines.

Yes, keyspace-scoped.

> Make schema alterations strongly consistent
> -------------------------------------------
>
>                 Key: CASSANDRA-10699
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10699
>             Project: Cassandra
>          Issue Type: Sub-task
>            Reporter: Aleksey Yeschenko
>            Assignee: Aleksey Yeschenko
>            Priority: Major
>             Fix For: 4.0
>
>
> Schema changes do not necessarily commute. This has been the case before 
> CASSANDRA-5202, but now is particularly problematic.
> We should employ a strongly consistent protocol instead of relying on 
> marshalling {{Mutation}} objects with schema changes.



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