This article explains when it's OK to use secondary indexes in Cassandra: http://www.wentnet.com/blog/?p=77
PS: the article is from 2013, so it can be outdated by now.. but at least it should give you some preliminary background on the topic. 2015-04-29 16:44 GMT-03:00 Robert Coli <rc...@eventbrite.com>: > On Wed, Apr 29, 2015 at 9:01 AM, Donald Smith < > donald.sm...@audiencescience.com> wrote: > >> Secondary indicies are inefficient and are deprecated, as far as I know. >> > > They are not deprecated, the correct summary is that they should only be > used in very particular circumstances. If you're not sure if you're in one > of those cases, you probably aren't. > > =Rob > >
