Created attachment 199509 [details]
gda_connection_execute_non_select_command()

This test case shows how, with the sqlite backend, gda_connection_execute_non_select_command() can return -2 on a successful CREATE TABLE query.

That is technically OK because the documentation only says that -1 is an error. However, some people (well, me) might check for < 0 instead of == -1. So maybe the documentation should explicitly mention that other negative results are possible, if this is really intended. However, 0 feels like a better result in this case.