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Re: pg_ctl idempotent option

From: Boszormenyi Zoltan <zb(at)cybertec(dot)at>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Peter Eisentraut <peter_e(at)gmx(dot)net>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: pg_ctl idempotent option
Date: 2013-01-14 16:49:49
Message-ID: 50F4372D.3050500@cybertec.at (view raw or flat)
Thread:
Lists: pgsql-hackers
2013-01-14 16:22 keltezéssel, Tom Lane írta:
> Peter Eisentraut <peter_e(at)gmx(dot)net> writes:
>> Here is a patch to add an option -I/--idempotent to pg_ctl, the result
>> of which is that pg_ctl doesn't error on start or stop if the server is
>> already running or already stopped.
> Idempotent is a ten-dollar word.  Can we find something that average
> people wouldn't need to consult a dictionary to understand?

--do-nothing-if-same-state?

>
> Also, should the option affect *only* the result code as you have it,
> or should it also change the printed messages to reflect that the
> case is considered expected?
>
> Also it appears to me that the hunk at lines 812ff is changing the
> default behavior, which is not what the patch is advertised to do.
>
> 			regards, tom lane
>
>


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