From: carapuz at gmail.com (Nic Nofamily)
Date: Fri, 31 Mar 2006 08:40:07 +0600
Subject: [Pljava-dev] Has ResultSet.getDate() correct handling DayLight
	saving time?
In-Reply-To: <442C4595.60900@tada.se>
References: <ce6becd90603301204p4ad121dcna667b89621661b17@mail.gmail.com>
	<442C4595.60900@tada.se>
Message-ID: <ce6becd90603301840j1b423bedwd3bee51555620eb6@mail.gmail.com>

But d.getTime() return different values when I called the same code from pljava.jdbc and postgresql.jdbc on same machine with same JVM. The diff was 3600000 msek before for pljava.
:(   TimeZone.getDefault() at both pljava.jdbc and postgresql.jdbc equals
 ---------
WBR, NiC

2006/3/31, Thomas Hallgren <thomas at tada.se>:
> 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
> >   
> 
>