From: | Oliver Jowett <oliver(at)opencloud(dot)com> |
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To: | Achilleas Mantzios <achill(at)matrix(dot)gatewaynet(dot)com> |
Cc: | pgsql-jdbc(at)postgresql(dot)org |
Subject: | Re: Timestamps without time zone |
Date: | 2008-01-09 12:43:25 |
Message-ID: | 4784C16D.6060003@opencloud.com |
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Thread: | |
Lists: | pgsql-jdbc |
Achilleas Mantzios wrote:
> Now instead of the above i tried something that should be "more" correct and
> according to specs
> Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
> st = con.prepareStatement("select
> utcts,latid,longi,tracktrue,avgspeed,minspeed,maxspeed from gpscookeddata
> where vslid=? and utcts<? and utcts>=? order by utcts");
> st.setInt(1,Integer.parseInt(vslid));
> st.setTimestamp(2,new java.sql.Timestamp(gendDate.getTime()),cal);
> st.setTimestamp(3,new java.sql.Timestamp(gstartDate.getTime()),cal);
> however again i see that the JDBC insists producing code like:
> select utcts,latid,longi,tracktrue,avgspeed,minspeed,maxspeed from
> gpscookeddata where vslid=92 and utcts<'2006-03-26 07:00:00.000000+03' and
> utcts>='2006-03-26 05:00:00.000000+03' order by utcts
This is unexpected - as you say the driver should generate timestamp
values in UTC if you pass a UTC calendar to setTimestamp.
Which driver version are you using?
How are you concluding that the JDBC driver is sending +03 values?
The driver will not generate a query string like you quoted above as it
uses parameter placeholders (assuming you are using protocol version 3
anyway) and sends the values out of line, which is why I'm asking.
-O
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