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From: Thom Brown <thom@linux.com>
Date: Fri, 1 Jul 2011 19:33:18 +0100
Message-ID: <BANLkTikkiorhu6AEDcP8LcTUA+unMnhHeg@mail.gmail.com>
Subject: Re: Functions example results incorrect
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-docs <pgsql-docs@postgresql.org>
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On 1 July 2011 19:17, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Thom Brown <thom@linux.com> writes:
>> It says that exp(1.0) yields 2.71828182845905.
>
> exp(1.0) invokes numeric exp() these days, but when the examples were
> written, it would have invoked float8 exp(). =A0At least on my machine,
> float8 does give the cited results
>
> Not sure if we want to change the examples or not. =A0As per the comment
> above the table, these results are inherently a bit platform-dependent,
> so someone who is expecting to match the results exactly is likely to be
> disappointed anyhow.

Fair enough.

>> The quote literal example of quote_literal('O\'Reilly') doesn't work
>> on my installation by default.
>
> Hmm, should we use an E'' literal there, or change the input to be
> 'O''Reilly'? =A0The former would confuse people who didn't understand E''
> literals, while the latter would make it look like quote_literal wasn't
> doing anything at all, so neither alternative seems to offer much
> clarity.

My concern is that people copying the example as a way to quote their
string literal will find that, by default, it doesn't work.  I'll
leave it to your better judgement though as I can see that the E''
notation could potentially confuse.   It is possible, either way, to
add a footnote to the example?

--=20
Thom Brown
Twitter: @darkixion
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Registered Linux user: #516935

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