From: rudolf <stu3.1@eq.cz>
To: Pavel Stehule <pavel.stehule@gmail.com>
Cc: Dean Rasheed <dean.a.rasheed@gmail.com>
Cc: pgsql-docs <pgsql-docs@postgresql.org>
Subject: Re: "format" function documentation fix
Date: Fri, 20 Sep 2013 10:05:02 +0200
Message-ID: <523C01AE.5020306@eq.cz> (raw)
In-Reply-To: <CAFj8pRD3cR3qEb_2gQ2T20DThP7w8SFwxyBmT91SxSHbAG_SVA@mail.gmail.com>
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Pavel Stehule wrote:
> 2013/9/17 rudolf
> Dean Rasheed wrote:
[...]
> This applies even if the "-" flag is also specified. So the last
> example is meant to illustrate that 2 minuses don't make a plus
> here.
>
> That's very unusual, IMO. This behavior follows some SQL standard or
> is it an invention of PostgreSQL?
>
> this is postgresql feature - standard doesn't support any similar
> functionality - and printf is some like developer Esperanto. We
> significantly reduced complexity of printf function and we modified
> basic rules for usage in SQL, but some very typical rules - like format
> placeholders, we share - we don't introduce own rules there.
Yes, as I already wrote to Dean (and forgot to cc the list), you are
right, the behavior is correct. Thanks for the explanation!
Kind regards,
r.
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To: pgsql-docs@postgresql.org
Cc: stu3.1@eq.cz, pavel.stehule@gmail.com, dean.a.rasheed@gmail.com
Subject: Re: "format" function documentation fix
In-Reply-To: <523C01AE.5020306@eq.cz>
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