Hi Radu, By using "TRACE = Yes", you should be able to see the log file created in the dir you specified, but I'm not sure why you are not seeing it, perhaps you don't have write permission to /var/log dir?
The real problem is even you get the log file created, the file just logs the interface level of ODBC API, for it's created and written by the unixODBC Driver Manager. and in your current case, the error seems from inside of UDR, I don't think ODBC trace will help on this. We are now working on adding trace information in the ODBC driver, details of the driver call stacks, you will be able to see this in near future. Still, this will be just from driver's level, but it then will help to provide more information like how the passed in parameters of the query is processed in driver.
