Re: PL/Perl 64-bit and sending emails

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От Dimitri Fontaine
Тема Re: PL/Perl 64-bit and sending emails
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Msg-id m2r5um23bv.fsf@hi-media.com
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Ответ на Re: PL/Perl 64-bit and sending emails  (Steve Atkins <steve@blighty.com>)
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Hi,

Steve Atkins <steve@blighty.com> writes:

> On Sep 3, 2009, at 11:30 AM, Mark Lubratt wrote:
>> Or, does someone know of  another way to get the
>> backend to send an email?
>
> Have a queue table in the database you put your emails into and an external
> process that polls the table, sends the email and deletes the  entry from
> the queue. Apart from avoiding the ickiness of doing high  latency work from
> a database function this also makes sending email  transaction safe - if the
> transaction rolls back after "sending" the  email, the email doesn't get
> sent.
>
> Using listen/notify based on a trigger on the table makes it a little more
> responsive.
>
> This comes up fairly often. It's probably worth doing a tidy perl daemon to
> handle it and stashing it up on pgfoundry.

Or have a look at PGQ which is made to handle this kind of queue
processing:
  http://wiki.postgresql.org/wiki/Skytools
  http://wiki.postgresql.org/wiki/PGQ_Tutorial
  http://kaiv.wordpress.com/2007/10/19/skytools-database-scripting-framework-pgq/

Regards,
--
dim

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