+ - SELECT: additional keyword arguments accepted include :LIMIT, :OFFSET,
+ :INNER-JOIN and :ON.
+
+ - SQL-RECORDING-P: also accepts :both and :either values for the TYPE
+ parameter.
+
+ - DROP-TABLE/DROP-VIEW/DROP-INDEX: keyword arg :if-does-not-exist.
+
+ - DROP-INDEX: keyword arg :on (for MySQL).
+
+ - DEF-VIEW-CLASS: DB-CONSTRAINTS, DB-TYPE and VOID-VALUE slot options.
+
+ - CREATE-TABLE: keyword args :TRANSACTIONS (for MySQL) and :CONSTRAINTS;
+ description arg accepts optional DB-TYPE string.
+
+ - transactions: START-TRANSACTION and IN-TRANSACTION-P.
+
+ - FIND-DATABASE: :db-type keyword arg.
+
+ - CONNECT: :make-default and :pool keyword args.
+
+ - Tranactions: AUTOCOMMIT
+
+4. Documenting lower level, non-CommonSQL functions (some of this is already
+ done).
+
+ - connection pools
+ - database-query-result-set
+ - with-default-database, with-database, create-database, probe-database,
+ destroy-database, list-databases.
+
+
+5. Notes on any peculiarities of each of the backends (e.g., unsupported
+ features, notable extensions etc.).
+
+ - MYSQL
+
+ drop-index: requires a table to be specified with the :from parameter
+ views: mysql does not support views
+ queries: nested subqueries are not supported
+ syntax: doesn't support the sql concatenation operator (||).
+ doesn't support INTERSECT/EXCEPT set operations.
+ create-table: the transactions keyword arg controls whether the created
+ table is an InnoDB table (supporting transactions) or not.