Re: Update query by joining multiple tables.

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От Shoaib Mir
Тема Re: Update query by joining multiple tables.
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Msg-id bf54be870701170701k323bad55j4f4a383112381a46@mail.gmail.com
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Ответ на Re: Update query by joining multiple tables.  (Andrew Sullivan <ajs@crankycanuck.ca>)
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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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