Re: BUG #7635: psql -1 and \connect

On Thu, 01 Nov 2012 22:29:50 +0100, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> pgmail(at)joh(dot)to writes:
>> I know it's not clear what to do with --single-transaction if a script
>> is
>> \connecting to multiple databases in a single file, but IMHO it should
>> at
>> least work correctly for the single database case.
>
> Define "correctly" --- I would expect \connect to establish a new
> connection even if the same target database is named. We can't change
> that behavior without breaking existing scripts, IMO --- for example, \c
> is a long-established way to reset GUC settings, prepared statements,
> etc.

Hmm.. I only considered the case where the \connect is at the beginning
of the file. I see your point.

> Perhaps we should have \connect fail outright in -1 mode. I can see
> no way for it to do anything and still maintain the expectation of a
> single transaction.

Would supporting a \connect at the very beginning of the file seem
possible? Maybe even only if it's to the same database?

Regards,
Marko Tiikkaja