Re: Confusing error message in pgbench

Hello Tatsuo-san,

> I found an error message in pgbench is quite confusing.
>
> pgbench -S -M extended -c 1 -T 30 test
> query mode (-M) should be specified before any transaction scripts (-f or -b)
>
> Since there's no -f or -b option is specified, users will be
> confused.

Indeed.

> Actually the error occurs because pgbench implicitly introduces a built
> in script for -S. To eliminate the confusion, I think the error message
> should be fixed like this:

The idea is that -S/-N documentations say that it is just a shortcut for
-b, but the explanation (eg --help) is too far away.

> query mode (-M) should be specified before transaction type (-S or -N)
> or any transaction scripts (-f or -b)

I would suggest to make it even shorter, see attached:

query mode (-M) should be specified before any transaction scripts (-f,
-b, -S or -N).

I'm wondering whether it could/should be "any transaction script". My
English level does not allow to decide.

--
Fabien.