Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> But I don't think it'll hurt anything. If you can prove that it
> actually helps something, I'll buy you a glass of wine. :-)
FWIW, I did try benchmarking this using "pgbench -S -c 10 -M prepared".
If there's any difference, it's below the noise floor. (I see about
0.2% or so run-to-run variation even without changing anything.)
regards, tom lane