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From Yésica Rey <>
Subject Re: New user asking for advice on database design
Date Thu, 22 Apr 2010 08:38:36 GMT
Hi David,

I think your arquitecture is right. I'm also new in cassandra, and I ve 
designed my database similar than yours.
I also think that division than data and indexes is more efficient in 
the queries.

I had not raised your question about put them in a separated keyspaces, 
but I also appreciate any sugestion.


David Boxenhorn escribió:
> Hi guys! I'm brand new to Cassandara, and I'm working on a database 
> design. I don't necessarily know all the advantages/limitations of 
> Cassandra, so I'm not sure that I'm doing it right...
> It seems to me that I can divide my database into two parts:
> 1. The (mostly) normal data, where every piece of data appears only 
> once (I say "mostly" because I think I need reverse indexes for 
> delete... and once it's there, other things).
> 2. The indexes, which I use for queries.
> Questions:
> 1. Is the above a good architecture?
> 2. Would there be an advantage to putting the two parts of the 
> database in different keyspaces? I expect the indexes to change every 
> once in a while as my querying needs progress, but the normal database 
> won't change unless I made a mistake.
> Any other advice?

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