@@ -151,7 +151,7 @@ CREATE TYPE "complex" AS ("real" float8, "imaginary" float8);
153Composite types are almost equivalent to Haskell record types.
153Composite types are almost equivalent to Haskell record types.
154−However, because of the potential presence of @NULL@
154+However, because of the potential presence of `NULL`
155all the record fields must be `Maybe`s of basic types.
155all the record fields must be `Maybe`s of basic types.
156Composite types can be generated from a Haskell record type, for example:
156Composite types can be generated from a Haskell record type, for example: