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From Narendra Sharma <narendra.sha...@gmail.com>
Subject Re: Cassandra 0.7 - documentation on Secondary Indexes
Date Tue, 30 Nov 2010 05:26:43 GMT
Thanks Jonathan.

Couple of more questions:
1. Is there any technical limit on the number of secondary indexes that can
be created?

2. Is it possible to execute join queries spanning multiple secondary
indexes?

Thanks,
Naren

On Mon, Nov 29, 2010 at 6:02 PM, Jonathan Ellis <jbellis@gmail.com> wrote:

> On Mon, Nov 29, 2010 at 7:59 PM, Narendra Sharma
> <narendra.sharma@gmail.com> wrote:
> > Is there any documentation available on what is possible with secondary
> > indexes?
>
> Not yet.
>
> > - Is it possible to define secondary index on columns within a
> SuperColumn?
>
> No.
>
> > - If I define a secondary index at run time, does Cassandra index all the
> > existing data or only new data is indexed?
>
> The former.
>
> --
> Jonathan Ellis
> Project Chair, Apache Cassandra
> co-founder of Riptano, the source for professional Cassandra support
> http://riptano.com
>

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