Re: Listen / Notify - what to do when the queue is full

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От Jeff Davis
Тема Re: Listen / Notify - what to do when the queue is full
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Msg-id 1266344520.29919.6961.camel@jdavis
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Ответ на Re: Listen / Notify - what to do when the queue is full  ("Greg Sabino Mullane" <greg@turnstep.com>)
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On Tue, 2010-02-16 at 16:02 +0000, Greg Sabino Mullane wrote:
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> 
> > * We also discussed the idea of having a NOTIFY command that 
> > would work from Primary to Standby.
> 
> Just curious, what's a use case for this?

If you have some kind of cache above the DBMS, you need to invalidate it
when a part of the database is updated. It makes sense that every reader
would want to know about the update, not just those connected to the
master.

Regards,Jeff Davis



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