"Luke Lonergan" <llonergan@greenplum.com> writes:
> Experiment should take but a minute to validate or disprove the hypothesis.
Only if you're prepared to trust the results of one experiment on one
platform with a not-very-large amount of data. Otherwise it's going to
take quite a few minutes ...
The real problem we are facing with a whole lot of our optimization
issues (not only sorting) is that it's not all that trivial to get
credible experimental results that we can expect will hold up across
a range of usage scenarios.
regards, tom lane
