Search Postgresql Archives

Re: INSERT RETURNING rule for joined view

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Sava Chankov <sava.chankov@xxxxxxxxx> writes:
> Is there a way to make RETURNING return all view columns?

Something like

CREATE RULE _insert AS ON INSERT TO j DO INSTEAD(
  INSERT INTO a (id,name) VALUES (NEW.id, NEW.name);
  INSERT INTO b (id,surname) VALUES (NEW.id,NEW.surname)
    RETURNING id, (SELECT name FROM a WHERE id = b.id) as name, surname
);

This only really works if the insert specifies "id" explicitly, which is
not amazingly desirable.  That's not the fault of the RETURNING though,
but of the repeat reference to NEW.id which might be a volatile
expression (ie, nextval()).  In some cases it's okay to hack around that
by using currval() the second time, but that just trades off one
unexpected behavior for a different one ...

			regards, tom lane

-- 
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux