r9831: * db-aodbc/aodbc-sql.lisp: Fix storage location

r9831:        * db-aodbc/aodbc-sql.lisp: Fix storage location
        of odbc connection. Specialize database-query since
        dbi's :types keyword is different than generic-odbc's
        :result-types keyword
        * sql/db-interface.lisp: Add warnings for methods
        not specialized by a db backends
        * tests/test-fddl.lisp: Fix case of symbols to support
        case-sensitive Allegro
        * db-oracle/oracle-sql.lisp: Rework errbuf in handle-oci-error
        * tests/test-init.lisp: Note that odbc driver for postgresql
        doesn't properly handle table ownership