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Posted to dev@cassandra.apache.org by Sri Ramya <ra...@gmail.com> on 2013/04/26 09:01:21 UTC

CQL indexing

HI

In cql to perform a query based on columns you have to create a index on
that column. What exactly happening when we create a index on a column.
What the index column family might contain.

Re: CQL indexing

Posted by aaron morton <aa...@thelastpickle.com>.

This discussion belongs on the user list, also please only email one list at a time. 

The article discusses improvements in secondary indexes in 1.2 http://www.datastax.com/dev/blog/improving-secondary-index-write-performance-in-1-2

If you have some more specific questions let us know. 

Cheers

-----------------
Aaron Morton
Freelance Cassandra Consultant
New Zealand

@aaronmorton
http://www.thelastpickle.com

On 26/04/2013, at 7:01 PM, Sri Ramya <ra...@gmail.com> wrote:

> HI
> 
> In cql to perform a query based on columns you have to create a index on
> that column. What exactly happening when we create a index on a column.
> What the index column family might contain.