Re: Re: timestamps cannot be created without time zones - Mailing list pgsql-bugs

From Rainer Mager
Subject Re: Re: timestamps cannot be created without time zones
Date
Msg-id NEBBJBCAFMMNIHGDLFKGCEBNFAAA.rmager@vgkk.com
Whole thread Raw
In response to Re: Re: timestamps cannot be created without time zones  ("Rainer Mager" <rmager@vgkk.com>)
Responses Re: Re: timestamps cannot be created without time zones  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-bugs
I posted this about 2 weeks ago and saw no further follow ups. Is this
timestamp thing not considered a bug? Or am I just doing something wrong?

Thanks,

--Rainer

> -----Original Message-----
>     Sorry to reopen this issue but I still think there is a bug
> somewhere,
> perhaps in the JDBC driver. The code and the end of this message
> demonstrates the bug. Basically I write a timestamp to the
> database and then
> read it back and  what I write and what I get back are different. I don't
> see how I can progrmatically make this correct in a consistent way without
> knowing the "magic" dates in Postgres. Note that I believe there are more
> than just one magic date. Apparently at ever older date (around
> 10,000 BC I
> believe) the seconds are dropped.
>     The output from the code is (the computer's time was 03:23:49):
>
> 1850-Jan-01 03:23:49 JST
> 1850-Jan-01 06:23:49 JST
>
> Thanks,
>
> --Rainer
>
>
> SimpleDateFormat format = new SimpleDateFormat( "yyyy-MMM-dd
> hh:mm:ss zz" );
> Calendar cal = new GregorianCalendar();
> cal.set( 1850, 00, 01 );
> java.util.Date date = cal.getTime();
> System.out.println( format.format( date ) );
> try {
>     PreparedStatement ps = con.prepareStatement(
>         "update cust_prop_date set value = ? where
> customer_id = 8791"
>     );
>     ps.setTimestamp( 1, new Timestamp( date.getTime() ) );
>     ps.execute();
>     ps.close();
>
>     ps = con.prepareStatement( "select value from cust_prop_date where
> customer_id=8791" );
>     ResultSet rs = ps.executeQuery();
>     rs.next();
>     date = new java.util.Date( rs.getTimestamp( "value" ).getTime() );
>     rs.close();
>     ps.close();
> } catch( Exception e ) {
> }
> System.out.println( format.format( date ) );

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