The State of NoSQL in 2012

practicalcloudcomputing.com

42 pointsasteroid3 comments

> Cassandra (similar to other Dynamo systems) offers great primary key-based access operations (e.g. get, put, delete), but doesn’t scale well for secondary-index lookups

Riak does have secondary-index lookups. I wonder how those scale compared to Cassandra's.

It's basically the same design (both are good at indexing low-cardinality data, and poor for high-), except that Cassandra allows non-index predicates to also be filtered server-side during an index scan: http://www.datastax.com/dev/blog/whats-new-cassandra-07-seco...

You might find this of interest as well (as seen on G+ Node.js' page): http://nodeup.com/eleven

It's a podcast about various databases, both SQL and noSQL, in relation to Node.js.

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