Tom Lane wrote:
> Jeff Davis <pg...@j-davis.com> writes:
> > That being said, I don't have much of an opinion, so if you see a
> > problem, then we can forget it. After all, we would need some kind of a
> > prefix anyway to avoid conflicting with actual SQL... maybe "\m"? And
> > that defeats a lot of the purpose.
> 
> Yeah, requiring a prefix would make it completely pointless I think.
> The submitted patch tries to avoid that by only matching syntax that's
> invalid in Postgres, but that certainly limits how far we can go with
> it.  (And like you, I'm a bit worried about the LOAD case.)
> 
> The last go-round on this was just a couple months ago:
> http://archives.postgresql.org/pgsql-bugs/2009-11/msg00241.php
> although I guess that was aimed at a slightly different idea,
> namely making "show databases" etc actually *work*.  This one at
> least has a level of complication that's more in keeping with the
> possible gain.
> 
> The previous discussion started from the idea that only DESCRIBE,
> SHOW DATABASES/TABLES, and USE were worth worrying about.  If we
> were to agree that we'd go that far and no farther, the potential
> conflict with SQL syntax would be pretty limited.  I have little
> enough experience with mysql to not want to opine too much on how
> useful that would be, but it does seem like those are commands
> I use right away anytime I am using mysql.

Agreed.  I think this discussion mirrors the psql 'help' feature we
added in 8.4.  After a lot of discussion we decided that a limited
'help' functionality was the best approach --- the more we added the
less attractive it became.

-- 
  Bruce Momjian  <br...@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +

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