Re: PSQL commands: \quit_if, \quit_unless

Corey Huinker <corey.huinker@gmail.com> writes:
> In order for me to understand how high the bar has been set, can you
> (Robert/Tom mostly, but I welcome any responses) explain what you mean by
> "full-blown expression language"? What constructs must it include, etc?

My guess is that something comparable to where pgbench is would be a
reasonable target --- not least because I think we should strive to
reduce unnecessary differences between psql and pgbench metalanguages.

I'm not sure that I'm ready to propose that they should share the same
expression engine, but perhaps it's not a totally wacky idea.
        regards, tom lane