+ #:db-type-use-column-on-drop-index?
+ #:db-backend-has-create/destroy-db?
+ #:db-type-has-views?
+ #:db-type-has-subqueries?
+ #:db-type-has-boolean-where?
+ #:db-type-transaction-capable?
+ #:db-type-has-fancy-math?
+ #:db-type-default-case
+ #:convert-to-db-default-case
+ #:database-underlying-type