On Tuesday, May 31, 2016, Peter Geoghegan <p...@heroku.com> wrote: > On Tue, May 31, 2016 at 11:02 AM, Josh berkus <j...@agliodbs.com > <javascript:;>> wrote: > > I get where you're coming from, but I think Haas's query plan output is > > going to show us the confusion we're going to get. So we need to either > > change the parameter, the explain output, or brace ourselves for endless > > repeated questions. > > I get where you're coming from, too -- I think our positions are very > close. > > The only reason I favor defining parallel_degree = 1, rather than > doing what Tom proposes to do with that patch, is that we might as > well use the prevailing terminology used by SQL Server and Oracle (as > long as we match those semantics). Also, I think that number of cores > used is a more important consideration for users than the number of > workers used. > > Users will definitely be confused about workers used vs. cores used, > but I don't think that any proposal fixes that. > > Ideally each worker gets its own core - though obviously physical limitations apply. If that's not the case then, yes, at least one user is confused...
David J.
