> Pgbench allows -f and -S combinations together where the doc says that -S
> effectively uses the internal select-only script.
>
> Is it okay to assume that -f is disregarded here? Or are they run in
> round-robin fashion (although then, how does it know which read-only part
> of my script to run?) or something else like that?
>
> Effectively, I think it should raise NOTICE that -f is useless here.
For the future 9.6, scripts options are cumulatives, so -f & -S can be
combined.
Indeed, for the <= 9.5 it seems that some options are silently ignores,
when combining -S/-f, only the last one is kept, it should be warned
about.
--
Fabien.