| From: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
|---|---|
| To: | Corey Huinker <corey(dot)huinker(at)gmail(dot)com> |
| Cc: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>, Andrew Dunstan <andrew(at)dunslane(dot)net>, PostgreSQL <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: PSQL commands: \quit_if, \quit_unless |
| Date: | 2017-01-14 04:56:41 |
| Message-ID: | CAFj8pRBOWTvAGBar=uVvcu75b5eZA9TUJifFfCgGNfZhzErvZQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
Hi
2017-01-14 0:20 GMT+01:00 Corey Huinker <corey(dot)huinker(at)gmail(dot)com>:
> Ok, so activity on this thread has died down. I'm not sure if that's
> consensus or exhaustion.
>
the original idea \quit_if is leaved? It is pity - it is common use case -
and because we cannot to implement macros in psql, then can be very useful
>
> Are we good with:
> - implementing basic \if EXPR \elseif EXPR \else \endif, where the EXPR is
> an expression but is currently limited to a simple string that will be
> evaluated for truth via ParseVariableBool()?
>
+1
> - moving beyond trivial expressions in a later commit?
>
the expressions are in nice to have category - there can be a logic
if there is only a variable, check the variable; else eval on server and
check the result.
> - leaving loops out for now?
>
+1
Regards
Pavel
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