From: | Sergey Konoplev <sergey(dot)konoplev(at)postgresql-consulting(dot)com> |
---|---|
To: | Thomas Kellerer <spam_eater(at)gmx(dot)net> |
Cc: | pgsql-sql(at)postgresql(dot)org |
Subject: | Re: DELETE using an outer join |
Date: | 2012-07-20 10:47:03 |
Message-ID: | CAL_0b1uOaRzywK9Aopv4-3bY7D933Mm46eW31dKzwRxFGx2O4A@mail.gmail.com |
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Thread: | |
Lists: | pgsql-sql |
On Fri, Jul 20, 2012 at 2:27 PM, Thomas Kellerer <spam_eater(at)gmx(dot)net> wrote:
>>>> Now I was wondering if a DELETE statement could be rewritten with the
>>>> same "strategy":
>>>
>>> Not at the moment. There have been discussions of allowing the same
>>> table name to be respecified in USING, but there are complications.
>>
>> However it works.
>>
>> DELETE FROM some_table USING some_table AS s
>> WHERE
>> some_table.col1 = s.col1 AND
>> some_table.col2 = s.col2 AND
>> some_table.id < s.id;
>>
>
> But that's not an outer join
Oh, yes. I just lost the discussion line. Sorry.
--
Sergey Konoplev
a database architect, software developer at PostgreSQL-Consulting.com
http://www.postgresql-consulting.com
Jabber: gray(dot)ru(at)gmail(dot)com Skype: gray-hemp Phone: +79160686204
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