Re: Limits of SQL

From: Joachim Zobel <jzobel(at)heute-morgen(dot)de>
To: Bruno Wolff III <bruno(at)wolff(dot)to>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Limits of SQL
Date: 2005-06-04 19:53:24
Message-ID: 1117914805.4405.16.camel@localhost
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Am Samstag, den 04.06.2005, 07:38 -0500 schrieb Bruno Wolff III:
> On Sat, Jun 04, 2005 at 11:31:02 +0200,
> Joachim Zobel <jzobel(at)heute-morgen(dot)de> wrote:
> >
> > ... And it seems that
> > a plain SELECT that tells me if a path exists is not possible...
>
> When 'WITH' gets implemented then you should be able to do this. I think
> there was some recent talk about that, but I don't know if it is going to
> make it in to 8.1. We'll know in about a month though.

So WITH will allow recursion so I can walk the graph, right? Does this
mean I can recursively join until a terminating condition is reached?

Sincerely,
Joachim

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