GENERIC: query-results ( query -- result-set )
GENERIC: #rows ( result-set -- n )
GENERIC: #columns ( result-set -- n )
-GENERIC# row-column 1 ( result-set column -- obj )
-GENERIC# row-column-typed 1 ( result-set column -- sql )
+GENERIC#: row-column 1 ( result-set column -- obj )
+GENERIC#: row-column-typed 1 ( result-set column -- sql )
GENERIC: advance-row ( result-set -- )
GENERIC: more-rows? ( result-set -- ? )