On Fri, Nov 14, 2014 at 1:27 PM, Simon Riggs <si...@2ndquadrant.com> wrote:
> On 12 November 2014 00:54, Robert Haas <robertmh...@gmail.com> wrote: > > Interestingly, I have a fairly solid idea of what proisparallel is, > > but I have no clear idea what CONTAINS NO SQL is or why it's relevant. > > I would imagine that srandom() contains no SQL under any reasonable > > definition of what that means, but it ain't parallel-safe. > > What is wrong in generating random numbers in parallel? > I was just watching Robert's talk on Parallel query on youtube... I think the answer is at 41:09, the link below should take you there: https://www.youtube.com/watch?v=3klfarKEtMQ#t=2469 Regards David Rowley
