From: | Bruce Momjian <bruce(at)momjian(dot)us> |
---|---|
To: | kes-kes(at)yandex(dot)ru, pgsql-docs(at)lists(dot)postgresql(dot)org |
Subject: | Re: Improve documentation for current_setting function |
Date: | 2019-02-22 01:39:24 |
Message-ID: | 20190222013924.2s77vm2cux3r54y2@momjian.us |
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Lists: | pgsql-docs |
On Wed, Feb 20, 2019 at 12:59:45PM +0000, PG Doc comments form wrote:
> The following documentation comment has been logged on the website:
>
> Page: https://www.postgresql.org/docs/11/functions-admin.html
> Description:
>
> Hi.
>
> Doc is not clear about what is returned if current_setting(
> 'app.not_existent', true ) is called.
>
> Does it return empty string '', because return type is 'text' or it return
> NULL, because 'app.not_existent' does not exist
Testing shows:
SELECT current_setting('asdf', true);
current_setting
-----------------
\pset null (null)
SELECT current_setting('asdf', true);
current_setting
-----------------
--> (null)
How do you like the attached patch, which clarifies this?
--
Bruce Momjian <bruce(at)momjian(dot)us> 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 +
Attachment | Content-Type | Size |
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current_setting.diff | text/x-diff | 824 bytes |
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