Hello Tobias,

the type property in the database part of the config.json is a direct mapping to PostgreSQL types.

You have to make sure that the type you define here maps to one of the types defined in the config.json documentation ("string", "int", "unsigned", "long", "ulong64", "bool").

However, it is important to understand, that the database definition in the config.json is only required in case where you have no server side JavaScript code and rely solely on the client side framework ( https://sdk.innovaphone.com/14r1/doc/appgeneric.htm#client ).

In case you have JavaScript code running on the App Service you can use the Database JavaScript Library for App Services ( https://sdk.innovaphone.com/14r1/doc/reference.htm#JS_library_service ). With this library you have the possibility to execute any statement directly (by using "exec" function). This way you could set up an Index, for example.

Best Regards

Andreas Fink