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Sylvain Lebresne commented on CASSANDRA-5091:
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I'll note that ordering on coordinator and query paging don't play very well at
all together so I'm not sure how much we can do here.
> Provide a way to sort read results on the coordinator node
> ----------------------------------------------------------
>
> Key: CASSANDRA-5091
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5091
> Project: Cassandra
> Issue Type: Wish
> Reporter: Sergio Bossa
> Labels: cql
>
> While Cassandra provides a way to scatter/gather queries with secondary
> indexes, as well as custom secondary indexes implementations, there is
> currently no way to sort gathered results on the coordinator node, which
> would be very useful (actually, essential) if the index implementation
> provides results in sorted order.
> So, what I'm proposing here is a way to provide (custom) sort
> implementations, which may either be as easy as just adding one more
> interface and a bunch of method calls, or get a bit more complex by providing
> an ORDER BY clause in CQL.
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