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https://issues.apache.org/jira/browse/CASSANDRA-4693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13600611#comment-13600611
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Michaël Figuière commented on CASSANDRA-4693:
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Right. This feature is mostly about bringing atomic batch guarantees to set of
PreparedStatements of any size. There will probably be some performance
improvement in executing them in batch but it'll be small as the Binary
Protocol is able to pipeline requests. So for read requests, not only returning
multiple resultsets would be an unusual thing, it would also be unnecessary as
there's no interesting guarantees to get there.
> 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
> Fix For: 2.0
>
>
> 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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