Re: listing installed modules

On Tue, 2011-12-27 at 15:55 +0100, Daniel Vázquez wrote:
> How to get a list of contrib module installed extensions on Postgresql
> 8.4??
>

If you mean installed on the OS, it's impossible from the SQL command
line. If you mean installed on your database, it's difficult to know.
You need to check if a specific function / type / operator / whatever
that this extension provides is available. It's difficult and error
prone.

That's why we now have the extensions system. Now as "in 9.1".

> I see \dx command for 9.1 but not works on 8.4
>

Yes. That's because extensions are a new PostgreSQL object since the 9.1
release.


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Guillaume
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