Re: Timezone information

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От Adrian Klaver
Тема Re: Timezone information
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Msg-id 530625F7.50204@aklaver.com
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Ответ на Re: Timezone information  (Dev Kumkar <devdas.kumkar@gmail.com>)
Список pgsql-general
On 02/20/2014 04:29 AM, Dev Kumkar wrote:
> On Thu, Feb 20, 2014 at 3:53 AM, Adrian Klaver
> <adrian.klaver@aklaver.com <mailto:adrian.klaver@aklaver.com>> wrote:
>
>     Each driver will have its own behavior. For an explanation of the
>     JDBC behavior see here:
>
>     http://www.postgresql.org/__message-id/4B2F2CED.10400@__opencloud.com
<http://www.postgresql.org/message-id/4B2F2CED.10400@opencloud.com>
>
>
>     Per Andrews posts, the least surprise behavior is to explicitly set
>     the client time zone. Then you control what is being seen/used.
>
>
> Actually then this goes back to the same thing that identify the
> timezone setting in OS and accordingly set at the driver level.
> In case of java JVM is picking up OS timezone and hence things are
> working without any issues for windows/linux both.

No it is the Postgres JDBC driver that is doing this. It seems the MySQL
JDBC driver operated differently until recently:

http://stackoverflow.com/questions/15206194/jdbc-mysql-save-timestamp-always-using-utc

The point is, if you are counting on consistent behavior with regard to
time in applications that touch the database, you will be disappointed.


>
> Regards...


--
Adrian Klaver
adrian.klaver@aklaver.com


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