The help for DF_DATABASE_IDENTIFIER_QUOTE looks like it's got something that needs removing. It shows two versions of the same 'GetIdentifierQuote' function, one of which makes reference to DF_DATABASE_DRIVER_IDENTIFIER_CHAR which doesn't appear to be a thing. (I suspect that the latter might have been changed to DF_DATABASE_IDENTIFIER_QUOTE at some point, and help updated, but the old reference not removed).

All a bit of a non-issue, but thought just to report it as I saw it.