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https://issues.apache.org/jira/browse/CASSANDRA-4693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13459638#comment-13459638
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Sylvain Lebresne commented on CASSANDRA-4693:
---------------------------------------------

One way to allow that would be to allow for the executePrepared message of the 
protocol to take a list of (preparedId, values) instead of just one (we would 
obviously refuse the query if the list size is > 1 and there is something else 
than a modification statement). Not sure we want to bother with on the 
CQL-over-thrift side however (I don't).
                
> CQL Protocol should allow multiple PreparedStatements to be atomically 
> executed
> -------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-4693
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4693
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Michaël Figuière
>              Labels: cql, protocol
>
> Currently the only way to insert multiple records on the same partition key, 
> atomically and using PreparedStatements is to use a CQL BATCH command. 
> Unfortunately when doing so the amount of records to be inserted must be 
> known prior to prepare the statement which is rarely the case. Thus the only 
> workaround if one want to keep atomicity is currently to use unprepared 
> statements which send a bulk of CQL strings and is fairly inefficient.
> Therefore CQL Protocol should allow clients to send multiple 
> PreparedStatements to be executed with similar guarantees and semantic as CQL 
> BATCH command.

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