You can have up to 2 billion columns but there are some considerations. This article might be of some help.
http://www.ebaytechblog.com/2012/08/14/cassandra-data-modeling-best-practices-part-2/#.VGWdT4enCS0 <http://www.ebaytechblog.com/2012/08/14/cassandra-data-modeling-best-practices-part-2/#.VGWdT4enCS0> > On Nov 14, 2014, at 1:10 AM, Adaryl Bob Wakefield, MBA > <adaryl.wakefi...@hotmail.com> wrote: > > I’m struggling with this wide row business. Is there an upward limit on the > number of columns you can have? > > Adaryl "Bob" Wakefield, MBA > Principal > Mass Street Analytics > 913.938.6685 > www.linkedin.com/in/bobwakefieldmba > Twitter: @BobLovesData
