Dave Page escreveu:
> On Wed, Oct 14, 2009 at 3:42 PM, Tom Lane <t...@sss.pgh.pa.us> wrote:
>> Sure.  I'm envisioning that what the env variable or connection option
>> actually does is cause libpq to include a SET command for a GUC
>> variable in the initial connection request packet.  Compare, say,
>> PGCLIENTENCODING -> client_encoding.
> 
> So you can now do any of the following to set the application name:
> 
> - Set $PGAPPLICATIONNAME on the client, prior to connection.
> - Include 'application_name=MyCoolApp' in the PQconnectdb connection string.
> - Use SET application_name
> 
Works for me.

> Currently though, pg_dump and psql (and presumably their close
> friends) use PQsetdbLogin to establish their connection. Would it be
> preferred if I:
> 
> a) Added PQsetdbLogin2() with an additional option for the application
> name (my guess is 'no').
> b) Updated the apps to use PQconnectdb
> c) Something else?
> 
My prefered option is (b). But it should be a separate patch.


-- 
  Euler Taveira de Oliveira
  http://www.timbira.com/

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