Re: DELETE using an outer join - Mailing list pgsql-sql

From Sergey Konoplev
Subject Re: DELETE using an outer join
Date
Msg-id CAL_0b1shAZWP76=jpA47MLJE4p3q9_FHnAAy9ki_gXk1kVYJuQ@mail.gmail.com
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In response to Re: DELETE using an outer join  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: DELETE using an outer join
Re: DELETE using an outer join
List pgsql-sql
On Thu, Jul 19, 2012 at 6:52 PM, Tom Lane <tgl@sss.pgh.pa.us> 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;

-- 
Sergey Konoplev

a database and software architect
http://www.linkedin.com/in/grayhemp

Jabber: gray.ru@gmail.com Skype: gray-hemp Phone: +79160686204


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