Re: proposal : backend startup hook / after logon trigger

"Tomas Vondra" <tv@fuzzy.cz> writes:
> On 25 Listopad 2011, 2:44, Robert Haas wrote:
>> I've thought of this before, but I'm not exactly clear on what the use
>> cases are.

> The startup hook is useful for initializing an extension written in C,
> when the extension was loaded from postgresql.conf. If you need to perform
> the initialization for each db separately (so that you can decide whether
> to apply the extension to the user/database), you need to do that after
> the backend starts.

If you need that, just load the extension with local_preload_libraries.
        regards, tom lane