Postgres column types uuid and bytea don't work

[nerdrew]

sfackler/rust-postgres supports them: https://github.com/sfackler/rust-postgres/blob/master/src/types/mod.rs#L457

Example table:

create table foo (
    id serial primary key,
    uuid uuid not null,
    blob bytea not null,
)

Errors:

use of undeclared type name `Uuid`
use of undeclared type name `Bytea`

Would it make sense to support a rust-postgres backend?