At the time of writing, the free PostgreSQL driver, Npgsql, does not provide Visual Studio integration to enable drag and drop onto the LightSpeed designer. If you want to import PostgreSQL tables into the designer, there are a number of options:
· Mindscape has created a free add-in which allows you to display PostgreSQL databases in Server Explorer and drag them onto the designer. Please post in the support forum if you would like to use this add-in.
· Some commercial PostgreSQL libraries include Visual Studio integration. These have not been tested with LightSpeed but some at least are known to work. Please post in the support forum if you need advice on using a specific commercial library with the LightSpeed designer.
· You can use the lsgen.exe command line tool with the /l:lsmodel option to generate a .lsmodel file from your database.