+ database-get-type-specifier. Return class for def-view-class.
+ * base/basic-sql.lisp: Make :AUTO the default value for
+ :RESULT-TYPES for MAP-QUERY and DO-QUERY.
+ * sql/objects.lisp: Add bigint type
+ * base/loop.lisp: Add placeholder for object iteration
+ * test/tests-basic.lisp: Add tests for :result-types for
+ MAP-QUERY and DO-QUERY