From: Shoaib Mir <shoaibmir@gmail.com>
To: Andrew Sullivan <ajs@crankycanuck.ca>
Cc: pgsql-sql@postgresql.org
Subject: Re: Update query by joining multiple tables.
Date: Wed, 17 Jan 2007 20:01:00 +0500
Message-ID: <bf54be870701170701k323bad55j4f4a383112381a46@mail.gmail.com> (raw)
In-Reply-To: <20070117125511.GC19527@phlogiston.dyndns.org>
References: <82e1a9bd0701170320j14d4ebdagd66d8c9f095b0192@mail.gmail.com>
<20070117125511.GC19527@phlogiston.dyndns.org>
Might be a view and then a rule attached with that can help you out with
doing updates using joins
--------------
Shoaib Mir
EnterpriseDB (www.enterprisedb.com)
On 1/17/07, Andrew Sullivan <ajs@crankycanuck.ca> wrote:
>
> On Wed, Jan 17, 2007 at 04:50:18PM +0530, Moiz Kothari wrote:
> > http://www.postgresql.org/docs/8.1/interactive/sql-update.html, it is
> not
> > specified if a join can be done between multiple tables to update a
> table, i
>
> Sure it is:
>
> A list of table expressions, allowing columns from other tables to
> appear in the WHERE condition and the update expressions.
>
> a
>
> --
> Andrew Sullivan | ajs@crankycanuck.ca
> Users never remark, "Wow, this software may be buggy and hard
> to use, but at least there is a lot of code underneath."
> --Damien Katz
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
> choose an index scan if your joining column's datatypes do not
> match
>
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To: pgsql-sql@postgresql.org
Cc: shoaibmir@gmail.com, ajs@crankycanuck.ca
Subject: Re: Update query by joining multiple tables.
In-Reply-To: <bf54be870701170701k323bad55j4f4a383112381a46@mail.gmail.com>
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