On Mon, Sep 15, 2014 at 11:29 AM, Tom Lane <[email protected]> wrote: > It might be that the benefit is very close to nil; that would depend a lot > on workload, so it's hard to be sure. I'd say though that the cost is > also very close to nil, in the sense that we're considering two additional > compare-and-branch instructions in a function that will surely expend > hundreds or thousands of instructions if there's no such short-circuit.
Fair enough. -- Peter Geoghegan -- Sent via pgsql-hackers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
