Implemented a fix to allow Unicode builds to work with MSACCESS. This fix should be tested against other databases also to ensure that the determination of the type to be used for character strings correctly finds that right type in unicode mode for other DBs

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31174 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/db.h

@@ -499,6 +499,7 @@ private:
     bool             setConnectionOptions(void);
     void             logError(const wxString &errMsg, const wxString &SQLState);
     const wxChar    *convertUserID(const wxChar *userID, wxString &UserID);
+    bool             determineDataTypes(bool failOnDataTypeUnsupported);
     void             initialize();
     bool             open(bool failOnDataTypeUnsupported=true);