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help / color / mirror / Atom feedFrom: Shaozhong SHI <[email protected]>
To: Rob Sargent <[email protected]>
Cc: Marc Mamin <[email protected]>
Cc: pgsql-sql <[email protected]>
Subject: Re: xargs psql
Date: Thu, 28 Apr 2022 15:05:07 +0100
Message-ID: <CA+i5JwYwMjuB2ZBNzpBpCqPZZDwksv5GPv5ft9aQBczSfRsJZg@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
<[email protected]>
Some suggested using no_hup. Would that work?
Regards,
David
On Thu, 28 Apr 2022 at 15:00, Rob Sargent <[email protected]> wrote:
>
>
> > On Apr 28, 2022, at 6:10 AM, Marc Mamin <[email protected]> wrote:
> >
> > Hello , it works for me.
> > I remember some difficulties with quote escaping. That's while I'm
> using $$ quoting for the sql aguments.
> >
> > here is how ma commands look like:
> >
> > psqlexec="psql -h$pghost -p$pgport -U$pguser -d${pgdb} -1 -P format=u
> -tqX";
> >
> > $psqlexec -c "SELECT relname FROM pg_class WHERE ..." \
> > | xargs -n 1 -P 8 -I{} bash -c "$psqlexec -c 'select * from
> foo(\$\${}\$\$)' > ouputdir/{}.out"
> >
> > HTH,
> >
> > Marc Mamin
> > ________________________________________
> > Von: Shaozhong SHI <[email protected]>
> > Gesendet: Donnerstag, 28. April 2022 13:32:42
> > An: pgsql-sql
> > Betreff: xargs psql
> >
> > Running lots of postgres commands in parallel | Mark's blog (
> markandruth.co.uk)<
> https://markandruth.co.uk/2016/05/26/running-lots-of-postgres-commands-in-parallel
> >
> >
> > Has anyone made success with this?
> >
> > How to put xargs command line correctly?
> >
> > Regards,
> >
> > David
> >
> You might be better off with gnu parallel
> >
>
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