It's a known issue, here is a bit extra info on it:
http://stackoverflow.com/questions/8795923/wrong-count-with-cassandra-cql
On Tue, Jun 12, 2012 at 12:40 PM, Leonid Ilyevsky <lilyev...@mooncapital.com
> wrote:
> The "select count(*) ..." query returns correct count only if it is <=
> 10000, otherwise it returns exactly 10000.
> This happens in both Java API and cqlsh.
> Can somebody verify?
>
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