From: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
---|---|
To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
Cc: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>, "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, dinesh kumar <dineshkumar02(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: proposal: multiple psql option -c |
Date: | 2015-07-27 18:53:56 |
Message-ID: | CAFj8pRD2jGa7EPuVmdx_8pEbd2RG-p_fAzkfr-X1qahJLWOQnw@mail.gmail.com |
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Lists: | pgsql-hackers |
2015-07-27 20:47 GMT+02:00 Robert Haas <robertmhaas(at)gmail(dot)com>:
> On Mon, Jul 27, 2015 at 2:37 PM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
> wrote:
> > 2015-07-27 20:32 GMT+02:00 Robert Haas <robertmhaas(at)gmail(dot)com>:
> >>
> >> On Sat, Jul 25, 2015 at 5:27 AM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com
> >
> >> wrote:
> >> > It will be nice side effect, but my primary problem was a
> impossibility
> >> > to
> >> > combine VACUUM and any other statement to one simple psql call.
> >>
> >> Seems like you can do that easily enough:
> >>
> >> [rhaas pgsql]$ (echo 'SELECT 1;'; echo 'VACUUM;'; echo 'SELECT 2;') |
> psql
> >> ?column?
> >> ----------
> >> 1
> >> (1 row)
> >>
> >> VACUUM
> >> ?column?
> >> ----------
> >> 2
> >> (1 row)
> >>
> >
> > how I can do it with xargs?
>
> I don't specifically what you're trying to do, but I bet it's not that
> hard.
>
I am trying to run parallel execution
psql -At -c "select datname from pg_database" postgres | xargs -n 1 -P 3
psql -c "select current_database()"
Pavel
>
> --
> Robert Haas
> EnterpriseDB: http://www.enterprisedb.com
> The Enterprise PostgreSQL Company
>
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