Re: autonomous transactions - Mailing list pgsql-hackers

From Gregory Stark
Subject Re: autonomous transactions
Date
Msg-id 87zluw99dd.fsf@oxford.xeocode.com
Whole thread Raw
In response to Re: autonomous transactions  (Neil Conway <neilc@samurai.com>)
Responses Re: autonomous transactions  ("Gokulakannan Somasundaram" <gokul007@gmail.com>)
Re: autonomous transactions  (Neil Conway <neilc@samurai.com>)
List pgsql-hackers
"Neil Conway" <neilc@samurai.com> writes:

> On Tue, 2008-01-22 at 20:53 +0100, Pavel Stehule wrote:
>> And there is most important question about data visibility - is
>> autonomous transaction independent on main transaction (isolation)?
>
>>From looking at how Oracle does them, autonomous transactions are
> completely independent of the transaction that originates them -- they
> take a new database snapshot. This means that uncommitted changes in the
> originating transaction are not visible to the autonomous transaction.

I think the hard part would be error handling. You have to be able to catch
any errors and resume the outer transaction.

--  Gregory Stark EnterpriseDB          http://www.enterprisedb.com Ask me about EnterpriseDB's 24x7 Postgres support!


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