Just to be clear, the DBD mostly doesn't need to "handle" [ and ] for them to just be passed along to the database to deal with and to "work".

The problem is that the DBD code that looks for placeholder ?s knows to not grab ?s inside of quotes but doesn't (at appears) know that it should ignore quotes inside of square brackets.

I doubt you can escape the single quote in a way that will both be understood by the DBD ?-finding code and correctly understood by the database. The DBD code needs to be enhanced to support this syntax.

                - tye