DBI backend warnings with Glib 2.16.3

[Phil Longstaff]

Derek Atkins wrote:
> Phil Longstaff <plongstaff at rogers.com> writes:
> 
>> With DBI, a connection is created using a specific driver, and then
>> certain driver-specific properties are set by name.  It might be
>> possible to design a URL format so that this could be done generally for
>> any backend.  However, DBI does not provide any abstraction for table
>> creation, so the gnucash dbi backend needs code to pick specific column
>> types in certain circumstances.  Therefore, you can't just add a new
>> driver and have it automatically usable.
> 
> We could fix this by implementing a relatively simple abstraction
> layer ourselves, couldn't we?  We could provide a translation
> list for each supported backend driver.   Yes, it would still mean
> that we'd need to extend the list to support new DBI backends,
> but it should at least limit the support requirements to a small
> location where the DB-specific translations get done.

Yes, we could.  I thought of doing it now, but decided to let it wait.

Phil