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https://issues.apache.org/jira/browse/CASSANDRA-11099?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15137298#comment-15137298
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Chris Bannister commented on CASSANDRA-11099:
---------------------------------------------

I realised when I started looking into the returned metadata that is not as 
simple as I had thought. I would be great to have fixed for protocol 5 though. 
Another option to mitigate is that if a client requests skip_metadata for a CAS 
statement Cassandra should ignore it and return the result metadata, this 
shouldn't be breaking.

> Prepared metadata does not include CAS applied column
> -----------------------------------------------------
>
>                 Key: CASSANDRA-11099
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11099
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Chris Bannister
>            Priority: Minor
>              Labels: protocolv5
>
> When executing a CAS statement the first column is the [applied] boolean 
> column indicating success, but when preparing it does get returned. This 
> means that clients can not cache the prepared statement result metadata to 
> use instead of the execute metadata.



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