Re: pgbench's expression parsing & negative numbers

Hello,

>>  - I do not think that updating pgbench arithmetic for managing integer
>>    overflows is worth Andres Freund time. My guess is that most
>>    script would not trigger client-side overflows, so the change would
>>    be a no-op in practice.
>
> It might not be if you view it in isolation (although I'm not
> convinced). The problem is that it has cost beyond pgbench. Due to
> pgbench's overflow handling

Lack of?

> I can't run make check on a build that has -ftrapv, which found several 
> bugs already.

Hmmm. You suggest that integer overflows do occur when running pgbench.

Indeed, this tap test case: "\set maxint debug(:minint - 1)"

Otherwise, some stat counters may overflow on very long runs? Although
overflowing a int64 takes some time...

> I'd be happy if somebody else would tackle the issue, but I don't quite 
> see it happening...

I must admit that it is not very high on my may-do list. I'll review it if 
it appears, though.

-- 
Fabien.