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From: GPT <[email protected]>
To: Bruce Momjian <[email protected]>
Cc: [email protected]
Subject: Re: Addition to / Clarification in 9.7.1. LIKE
Date: Fri, 26 Jan 2018 09:52:07 +0100
Message-ID: <CADep2PMy2cVifjYgnDoxRsT7CESQ1v4a1sTAUkPPBtcOap4JEg@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>

Between 1st (The LIKE expression...) and 2nd (If pattern does not...)
paragraphs, it could be added something like:

<begin>
                                               Caution
Contrary to some other databases, in Postgresql only two characters
are used in LIKE patterns: underscore (_) and percent sign (%).
The use of any other character will lead to an error.
<end>

The error message also would be more clarified to inform user about
the use of not supported characters.

On 1/25/18, Bruce Momjian <[email protected]> wrote:
> On Thu, Dec 14, 2017 at 09:33:39AM +0000, [email protected] wrote:
>> The following documentation comment has been logged on the website:
>>
>> Page: https://www.postgresql.org/docs/10/static/functions-matching.html
>> Description:
>>
>> Between the 1st and 2nd paragraphs please add a new one which make clear
>> (also to a newbie like myself) that the _only characters_ can be used in
>> pattern are (_) and (%).
>
> Uh, it is not totally clear what you are suggesting here.  I think you
> are talking about the LIKE command and its use of _ and %.  What detail
> should be added?  Can you show an example?
>
> --
>   Bruce Momjian  <[email protected]>        http://momjian.us
>   EnterpriseDB                             http://enterprisedb.com
>
> + As you are, so once was I.  As I am, so you will be. +
> +                      Ancient Roman grave inscription +
>

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