From: | David Fetter <david(at)fetter(dot)org> |
---|---|
To: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: proposal - assign result of query to psql variable |
Date: | 2012-07-26 06:36:55 |
Message-ID: | 20120726063655.GB16582@fetter.org |
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Lists: | pgsql-hackers |
On Thu, Jul 26, 2012 at 08:31:13AM +0200, Pavel Stehule wrote:
> 2012/7/26 David Fetter <david(at)fetter(dot)org>:
> > On Thu, Jul 26, 2012 at 01:36:17AM -0400, Tom Lane wrote:
> >> Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> writes:
> >> > \eset variable [, variable [..]] query -- it raise exception when
> >> > more than one row is returned or when no row is returned
> >>
> >> Better would be a variant on \g, that is you type in the query and
> >> then tell it where to put the result. We have learned the hard way
> >> that putting SQL commands into the arguments of backslash commands
> >> is a horrid idea. Maybe
> >>
> >> select x,y,... from ...
> >> \gset var1 var2 ...
> >
> > How about
> >
> > \gset var1,,,var2,var3...
> >
>
> I don't like this - you can use fake variable - and ignoring some
> variable has no big effect on client
Why assign to a variable you'll never use?
Cheers,
David.
P.S. The bike shed should be puce with blaze orange pin-striping.
--
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