On Wed, May 7, 2014 at 11:50 AM, Robert Haas <robertmh...@gmail.com> wrote:
> But that does not mean, as the phrase "folk
> wisdom" might be taken to imply, that we don't know anything at all
> about what actually works well in practice.

Folk wisdom doesn't imply that. It implies that we think this works,
and we may well be right, but there isn't all that much rigor behind
some of it. I'm not blaming anyone for this state of affairs. I've
heard plenty of people repeat the "don't exceed 8GB" rule - I
regularly repeated it myself. I cannot find any rigorous defense of
this, though. If you're aware of one, please point it out to me.

-- 
Peter Geoghegan


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