The following bug has been logged on the website:
Bug reference: 8135
Logged by: Frank van den Heuvel
Email address: frank@heuveltop.nl
PostgreSQL version: 9.1.8
Operating system: Ubuntu 12.04
Description: =
Dear developers,
I think I have found a bug. I am building an application that relies on user
setting of TimeZone and DateStyle.
After
ALTER ROLE frank SET TimeZone =3D 'Europe/Amsterdam';
Where the TimeZone differs from the default timezone.
SELECT current_setting('TimeZone');
Gives the correct answer.
But this same doesn't work for DateStyle
ALTER ROLE frank SET DateStyle =3D 'SQL, DMY';
Where the DateStyle differs from the default DateStyle
SELECT current_setting('DateStyle');
Gives the system/database setting but not the user setting; while the
setting does have its effect on the output of date's and timestamps. This
might also effect other user settings, but I haven't found any yet.
My application needs to know what the user setting is, so this is a
workaround that I use:
WITH user_config AS (
SELECT rolname, split_part(unnest(rolconfig), '=3D', 1) AS key,
split_part(unnest(rolconfig), '=3D', 2) AS value
FROM pg_roles )
SELECT *
FROM user_config
WHERE rolname =3D USER
AND key ILIKE 'DateStyle';
Thank you for reading,
Frank