Don Baccus <dhogaza(at)pacifier(dot)com> writes:
> While I don't doubt your analysis is correct for the case you've
> uncovered, it doesn't explain why surrounding a bunch of selects
> with a begin/end block greatly descreases disk activity for tables
> that don't change.
Hmm, I'm not sure why that should be, either. Anyone?
regards, tom lane