Some weekend reading: http://stackoverflow.com/questions/20022196/are-left-outer-joins-associative
Cheers On Sun, Oct 11, 2015 at 5:32 PM, Cheng, Hao <hao.ch...@intel.com> wrote: > A join B join C === (A join B) join C > > Semantically they are equivalent, right? > > > > *From:* Richard Eggert [mailto:richard.egg...@gmail.com] > *Sent:* Monday, October 12, 2015 5:12 AM > *To:* Subhajit Purkayastha > *Cc:* User > *Subject:* Re: Saprk 1.5 - How to join 3 RDDs in a SQL DF? > > > > It's the same as joining 2. Join two together, and then join the third one > to the result of that. > > On Oct 11, 2015 2:57 PM, "Subhajit Purkayastha" <spurk...@p3si.net> wrote: > > Can I join 3 different RDDs together in a Spark SQL DF? I can find > examples for 2 RDDs but not 3. > > > > Thanks > > > >
