Re: Recording exceptions within function (autonomous transactions?)

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От Tom Lane
Тема Re: Recording exceptions within function (autonomous transactions?)
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Msg-id 5990.1444140872@sss.pgh.pa.us
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Ответ на Re: Recording exceptions within function (autonomous transactions?)  (Scott Mead <scottm@openscg.com>)
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Scott Mead <scottm@openscg.com> writes:
>> On Oct 6, 2015, at 05:38, Steve Pritchard <steve.pritchard@bto.org> wrote:
>> [ how to fake an autonomous transaction? ]

> It's hacky, and, I haven't tried it in a few years.  Setup a foreign table that resides in the same database. When
youwrite to the foreign table, it will be using a 'loopback' connection, and that transaction will be able to commit
becauseit is a separate connection.  
>   To be fair, I haven't actually done this since the days of dblink, I *believe* it should work with fdw though.

My recollection is that you can do this with dblink, but *not* with FDWs
--- or at least, not with postgres_fdw.  The latter is smart enough to
roll back your remote transaction when the local one rolls back.

            regards, tom lane


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