Re: speed up a logical replica setup

On Sun, Jun 30, 2024 at 02:58:00PM -0400, Tom Lane wrote:
> I wrote:
> > In hopes of moving things along as we approach the v18 branch,
> > I went ahead and pushed Kuroda-san's patches (with a bit of
> > further editorialization).
>
> So b3f5ccebd promptly blew up on fairywren [1]:
>
> connection error: 'psql: error: unterminated quoted string in connection info string'
> while running 'psql -XAtq -d port=52984 host=C:/tools/nmsys64/tmp/hHg_pngw4z dbname='regression\\\\"\\\\

!"#$%&\\'()*+,-\\\\\\\\"\\\\\\\\\\\\' -f - -v ON_ERROR_STOP=1' at
C:/tools/nmsys64/home/pgrunner/bf/root/HEAD/pgsql/src/test/perl/PostgreSQL/Test/Cluster.pmline 2124. 
>
> This shows that the command-line arguments to psql are not getting
> adequately quoted on that platform.  AFAICS, we are relying on
> IPC::Run::run to perform such quoting, and it seems to be
> falling down here.  I wonder what version of IPC::Run fairywren
> is using.

It does look consistent with IPC::Run predating v20220807.0, hence lacking the
https://github.com/toddr/IPC-Run/issues/142 fix.  I wondered how this animal
was passing 002_pg_upgrade.pl, but it seems the animal has run TAP suites only
occasionally.  Passes in the last week were TAP-free.

> [1] https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=fairywren&dt=2024-06-30%2018%3A03%3A06