On Tue, Aug 28, 2007 at 11:15:32AM +0200, Lukas Kahwe Smith wrote:
> But something I am not so sure about is stuff like:
> - app independent read/write splitting for master/slave setups
There is more than one replication system that does this sort of
thing already. They all have the same problem: what do you do when
something commits on one box and fails on the other? In such a case,
you lose consistency. You could of course do it with two phase
commit; but if you're going to pay that cost, then you don't need
this additional scripting language thing anyway.
> - app independent auditing
You could do some of this with the query logs. But. . .
> Both of the above can be done in postgresql of course using triggers,
> but you would at the very least need to modify the app schema to add the
> triggers ..
. . .yes. And I don't think that's a bad thing: auditing, if it's
needed, should be designed into an application, not something that
you hang on the side.
A
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