Re: dropdb and dropuser: IF EXISTS

On Fri, Aug 26, 2011 at 12:08 AM, Josh Kupershmidt <schmiddy@gmail.com> wrote:
> I noticed a few places where it would be handy if dropdb took a flag
> like "--if-exists" which would basically just add in the 'IF EXISTS'
> clause to the DROP DATABASE statement. For example, scripts like
> find_static or mbregress.sh use dropdb && createdb, but they generate
> noisy errors from dropdb when run for the first time since there's no
> --if-exists flag. (They could just pipe 'DROP DATABASE IF EXISTS ...'
> to psql, but what's the point of having dropdb if it's not used?)
>
> Attached is a very quick patch implementing the "--if-exists" or "-X"
> option for dropdb and dropuser. I didn't bother adding in a check to
> make sure the server version was 8.2+ since we're not even supporting
> 8.1 nowadays, though that'd be easy enough to add in.

+1 for --if-exists, but -X isn't doing a lot for me, especially since
we've used -X for other purposes in other commands.  I'd just skip
having a short form for this one.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company