On Fri, February 28, 2014 22:38, Tom Lane wrote:
> Andrew Dunstan <and...@dunslane.net> writes:
>>> Well, then we just have to add more info to --help
>
>> +1 for at least doing that. I found it annoying just the other day not
>> to find it in plsql's --help output, in a moment of brain fade when I
>> forgot how to spell it. So it's not just beginners who can benefit, it's
>> people like me whose memory occasionally goes awry.
>
> No objection in principle, but what are we talking about exactly?
> Adding some new backslash command that lists all the variables that have
> special meanings?  I'm not sure that the main --help output is the place
> for this, because that only covers psql's command line switches (and
> is plenty long enough already).
>
>                       regards, tom lane

Perhaps this compromise:

  -v, --set=, --variable=NAME=VALUE
                           set psql variable NAME to VALUE e.g.: -v 
ON_ERROR_STOP=1

this would not lengthen and not broaden the output of psql --help





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