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From Sylvain Lebresne <>
Subject Re: Creating index on part of composite key with Cassandra 1.2.0-beta1
Date Mon, 05 Nov 2012 10:14:31 GMT
On Mon, Nov 5, 2012 at 10:53 AM, Maxim Veksler <> wrote:

> Are indexes on composite column supported ?

Index on any part of the PRIMARY KEY is not supported (whether the PRIMARY
KEY is composite or not btw), not yet at least.

> If not, a suggestion for a work around?

In your case, you're asking for an index on the first component of the
PRIMARY KEY, which is non-sensical in the sense that this component is
already always "indexed".

If you want all the rows whose campaignId = 3, just do SELECT FROM
userinfo2 WHERE campaignId = 3.


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