A path to the directory that contains the schema files defining tables, views, and stored procedures.
"%APPDATA%\\CData\\GoogleSpanner Data Provider\\Schema"
The path to a directory which contains the schema files for the adapter (.rsd files for tables and views, .rsb files for stored procedures). The folder location can be a relative path from the location of the executable. The Location property is only needed if you want to customize definitions (for example, change a column name, ignore a column, and so on) or extend the data model with new tables, views, or stored procedures.
If left unspecified, the default location is "%APPDATA%\\CData\\GoogleSpanner Data Provider\\Schema" with %APPDATA% being set to the user's configuration directory:
|Windows||The value of the APPDATA environment variable|