Re: proposal: a width specification for s specifier (format function), fix behave when positional and ordered placeholders are used - Mailing list pgsql-hackers

From Pavel Stehule
Subject Re: proposal: a width specification for s specifier (format function), fix behave when positional and ordered placeholders are used
Date
Msg-id CAFj8pRA3JQQfqxB-nCoV9g-N5iYJqs1051AFD19_i705db0upA@mail.gmail.com
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In response to Re: proposal: a width specification for s specifier (format function), fix behave when positional and ordered placeholders are used  (Stephen Frost <sfrost@snowman.net>)
List pgsql-hackers
2012/12/31 Stephen Frost <sfrost@snowman.net>:
> Pavel,
>
> * Pavel Stehule (pavel.stehule@gmail.com) wrote:
>> A result from ours previous talk was a completely disabling mixing
>> positional and ordered placeholders - like is requested by man and gcc
>> raises warnings there.
>>
>> But mixing is not explicitly disallowed in doc, and mixing was tested
>> in our regress tests. There are tests where placeholders are mixed -
>> so anybody can use it.
>> select format('Hello %s %1$s %s', 'World', 'Hello again'); -- is
>> enabled and supported and result is expected
>
> Alright, then I agree that raising a warning in that case makes sense
> and let's update the docs to reflect that it shouldn't be done (like
> what glibc/gcc do).

ok, I prepare patch

Regards

Pavel


>
>         Thanks,
>
>                 Stephen



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