Re: psql - add special variable to reflect the last query status

Fabien COELHO <coelho@cri.ensmp.fr> writes:
>> I think you're overly optimistic to believe that every failure will
>> have a SQLSTATE; I don't think that's true for libpq-reported errors,
>> such as connection loss.

> Yep, I thought I was optimistic:-) Can I add a special SQLSTATE for that 
> situation where libpq did not report an error?

Meh.  If we're going to do that I think it might be better to hack
libpq itself to do so, ie, force PQresultErrorField(..., PG_DIAG_SQLSTATE)
to always return something.  But it seems like a hack either way.

			regards, tom lane