Re: .psqlrc version dependence (was Re: about EDITOR_LINENUMBER_SWITCH)

Tom Lane wrote:
> Peter Eisentraut <peter_e@gmx.net> writes:
> > Contrary to what the subject suggests, I think the main reason people
> > wanted this feature was to be able to set the linestyle to unicode
> > without getting a warning from older releases about unknown linestyle or
> > something.  But in a few years, they'll have to
> > maintain .psqlrc-9.2, .psqlrc-9.3, .psqlrc-9.4, etc.  That doesn't sound
> > like a useful long-term solution either.
> 
> Well, "in a few years" they won't need that conditionality any more at
> all, so I'm not sure I believe the above argument.  The problem seems
> inherently self-limiting.
> 
> What struck me while looking at the patch is that it is conditional
> based on *psql's* version.  Not the version of the server you're
> connected to.  I'm not too sure what use-cases people have for version
> dependence here, but I'd think that the server version would enter into
> it sometimes.

The assumption is that the .psqlrc is controlling psql behavior.  Not
sure what setting would be changed based on server version, maybe psql
variables. 

I have updated the docs to indicate it is the psql version.

> (Of course, for server version to be used usefully, you'd need to
> re-execute the rc file during \c, something we don't do now.)

Yep, yuck.

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

  + It's impossible for everything to be true. +