I have experienced a very peculiar issue with the postgresql JDBC driver when calling java.sql.ResultSet.getTime() or getTimestamp() on a field of type timetz.
Here is how to reproduce the issue:
- Set date and time to 2010-09-19 14:57:00 CEST (central european summer time: UTC+2) or something similar
- Fetch "SELECT current_time" from the Postgres database directly. This will return the correct time, e.g "14:57:17.116452+02"
- Fetch "SELECT current_time" from the Postgres JDBC driver. This will return a wrong time, e.g 13:57:17
After some debugging, I found out that in TimestampUtils.toTime(Calendar, String), the date is zeroed out, i.e. 2010-09-19 is turned into 1970-01-01. Of course, January 1 is CET (UTC+1) and not CEST (UTC+2), which explains the result being one hour off. Since I'm requesting the current time on a day in September, I would expect to receive the time as it is displayed in summer time, and not on any arbitrary day in the past. I found some similar bug reports on your archive with no solution yet, e.g.:
http://archives.postgresql.org/pgsql-jdbc/2010-05/msg00041.phpCheers,
Lukas