pá 29. 3. 2019 v 19:50 odesílatel Christoph Berg <m...@debian.org> napsal:
> Re: Tom Lane 2019-03-29 <19517.1553876...@sss.pgh.pa.us> > > >> Or perhaps better, allow pg_ctl to grow new subcommands for those > > >> tasks? > > > > > We'd need to be careful to somehow delineate commands that need access > > > to the data directory / run locally on the server from the ones that > > > just needs a client connection. > > > > Hmm, that's a good point: to put it in terms that make sense to a > > packager, it'd no longer be clear whether pg_ctl belongs in the > > server package or the client package. > > True, and putting end-user commands like "create database" into the > same admin tool like "stop", "promote", and "kill" feels both wrong > and dangerous to me. It would also cause people to wonder why "pg_ctl > -h remotehost stop" doesn't work. > > > I'm still not thrilled with wedging in these things as options > > to psql though: its command line semantics are overly complicated > > already, when you consider things like multiple -c and -f options. > > I mean, somebody might think it's a feature to be able to do > > > > psql --createuser alice --createuser bob -c 'some command' -f > somefile > > > > but I don't. > > Ack. (Otoh, just processing all arguments after another might be > well-defined, and not too hard?) > > > Maybe if we want to merge these things into one executable, > > it should be a new one. "pg_util createrole bob" ? > > "pg" is unfortunately already taken :( > > Fwiw, let's please keep supporting "createuser". Creating login roles > is more common than non-login ones, and having to type "createrole > --login bob" is cumbersome and will cause endless support requests by > confused users. > > Other idea: If we don't want to reinvent a new tool, how about > supporting prepared statements in psql? > > psql -c 'create user %i' --args 'bob w. space' > Prepared statements cannot be DDL commands. But psql has safe escaping via :"xxx" notation. So some like psql -c 'create role :"role"' -v role='my role' ... But what I know the psql variables are not evaluated for -c query Pavel > > Christoph > > >
