[Gretl-users] import char/varchar columns via odbc

Good morning everybody, I'm currently running compiled on my own gretl 2015d with odbc support on debian testing with gnome shell. I have correctly configured the odbc driver, since I can connect to the db both from gretl and libreoffice base. In gretl, importing numeric columns from a db table works correctly, but I can't figure out how to import character values columns. For example, my favorite test db is world, the one containing all the world countries and the cities; I can import in gretl the columns for population and for gnp, for example, but not the one containing the names of the countries. If I give the command data countries query="SELECT Name FROM Countries" --odbc I get a series of zeros; if I add the option obs-format="%s" (the option for string values, as I saw on the user's guide) nothing happens. Am I missing something? Thank you -- Alessandro Astuti