From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-owner@postgresql.org] On Behalf Of Shridhar Daithankar
Sent: Wednesday, January 23, 2013 10:32 PM
To: pgsql-general@postgresql.org
Cc: Gauthier, Dave; Rob Sargent
Subject: Re: [GENERAL] DB alias ?
On Wednesday, January 23, 2013 09:39:43 PM Gauthier, Dave wrote:
> Then someone who wants to look at old JAN data will have the same problem
> :-(
>
> If I recall, Oracle enables something like this. Multiple tnsfilenames (or
> something like that). There was a connect layer on the server side that
> the DBA had access to where you could do stuff like this.
> >> proposed new SQL command:
> >>READ USERS MIND;
> :
> :-)
>
> Actually, read the DBA's mind.
>
> How about...
>
> postgres=# create db_alias FEB to db JAN;
> postgres=# drop db_alias FEB;
I would have suggested to use pg_services file as documented at
http://www.postgresql.org/docs/9.1/static/libpq-pgservice.html
http://www.postgresql.org/docs/9.1/static/libpq-connecthtml
You can think of this as tnsnames replacement.
but I am unable to make it work. I don't know what is wrong with this.
shridhar@bheem ~$ cat ~/.pg_service.conf
[test1]
host=localhost
dbname=test
shridhar@bheem ~$ strace -o psql.strace psql test1
psql: FATAL: database "test1" does not exist
shridhar@bheem ~$ grep -i pg_service psql.strace
shridhar@bheem ~$ psql test
psql (9.2.2)
Type "help" for help.
test=# \q
shridhar@bheem ~$ psql --version
psql (PostgreSQL) 9.2.2
--
Regards
Shridhar
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The services file looked/looks interesting, but there are far too many clients, and at multiple sites, to manage this. I really need something on the server side, a single place to manage this for all connections regardless of where they are coming from. It also looks like a C lib based file, something I won't have access to except, maybe, through an app designed for DBAs to edit this file. If I am mistaken, and the services file is in the DB root area (the area specified after the "-D" in commands like pg_ctl), then maybe this is still viable. But I don't see a services file there :-(