[Pljava-dev] Has ResultSet.getDate() correct handling DayLight saving time?

From: thomas at tada(dot)se (Thomas Hallgren)
To:
Subject: [Pljava-dev] Has ResultSet.getDate() correct handling DayLight saving time?
Date: 2006-03-30 20:54:45
Message-ID: 442C4595.60900@tada.se
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pljava-dev

Hi Nic,
I don't think the returned date as such is incorrect. The problem occurs
when you represent the date as a string. What timezone do you use when
you do that? Do you simply use d.toString() ? If so, the default
timezone for your JVM is incorrect and that's the source of the problem.

Regards,
Thomas Hallgren

Nic Nofamily wrote:
> Hi all!
> I have a little trouble with my pljava functions last night:(
> --------------
> here config:
> Java HotSpot(TM) Server VM (build 1.5.0_06-b05, mixed mode)
> Debian Sarge
> pljava 1.2.0 compiled from source
> postgresql 8.1.3 installed from debian backports
> ---------------
> ResultSet.getDate for to_date('01/11/2005','DD/MM/YYYY') returns
> 31/10/2005 for pljava jdbc driver
> the same java code using postgresql jdbc driver works fine:(
>
> I discovered that wrong result depend on DayLight Saving time
> and i wrote workaround on ObjectResultSet.getDate()
>
> public Date getDate(int columnIndex)
> throws SQLException
> {
> Date d = (Date)this.getValue(columnIndex,Date.class);
> if(!java.util.TimeZone.getDefault().inDaylightTime(d)){
> d = new
> java.sql.Date(d.getTime()+java.util.TimeZone.getDefault().getDSTSavings());
> }
> return d;
> }
>
> now my pljava code works good, but that's wrong way:(
> What are you comments, developers?:)
> PS: sorry for my English,I am Russian:)
> _______________________________________________
> Pljava-dev mailing list
> Pljava-dev at gborg.postgresql.org
> http://gborg.postgresql.org/mailman/listinfo/pljava-dev
>

In response to

Responses

Browse pljava-dev by date

  From Date Subject
Next Message Nic Nofamily 2006-03-31 02:40:07 [Pljava-dev] Has ResultSet.getDate() correct handling DayLight saving time?
Previous Message Nic Nofamily 2006-03-30 20:04:42 [Pljava-dev] Has ResultSet.getDate() correct handling DayLight saving time?