From: | Andreas Kretschmer <akretschmer(at)spamfence(dot)net> |
---|---|
To: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: why doesn't insert into foo delete from bar returning baz work? |
Date: | 2010-05-26 15:37:26 |
Message-ID: | 20100526153726.GA29991@tux |
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Lists: | pgsql-general |
Palle Girgensohn <girgen(at)pingpong(dot)net> wrote:
> While you can do
>
> insert into foo (a, b) select a, b from bar;
>
> and
>
> delete from bar where a=1 returning a, b;
>
> it fails to run
>
> insert into foo (a, b) delete from bar where a=1 returning a, b;
>
> This is not what I would expect. Is there a reason for it not working?
Yeah, it's a great feature, called writeable CTE, see here:
http://akretschmer.blogspot.com/2009/11/writeable-cte-short-performance-test.html
Unfortunately, the patch from Mirko Tiikkaja was rejected due to some
technical problems. I'm waiting for 9.1 ...
Andreas
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect. (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly." (unknown)
Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°
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