Excerpts from Cédric Villemain's message of jue oct 21 16:01:30 -0300 2010:

> I agree this is interesting information to get, but wonder how
> pg_config can know that and it looks to me that this information as
> nothing to do in pg_config....
> pg_config is all about installation, socket_dir is a postgresql.conf setting.

Yeah -- how is pg_config to know?  All it can tell you is what was the
compiled-in default.

pg_ctl would be nice, but we'd have to make it parse the config file
(there has been talk about that).  In any case, if you don't know where
the socket is, presumably you don't know where the config file is,
either.  You've just moved the problem.

Maybe you should go the SHOW route.  The user could connect via TCP and
find out the socket directory that way.

Álvaro Herrera <alvhe...@commandprompt.com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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