jsonb, json, and array support

[john-kelly]

check the change log: https://github.com/begriffs/postgrest/releases

apparently you can order (maybe filter) by nested json.

as an aside. this may affect naming of things:
ecto calls this embedded schemas

[john-kelly]

Django still calls them fields: https://docs.djangoproject.com/en/1.10/ref/contrib/postgres/fields/#postgresql-specific-model-fields

[john-kelly]

Composite vs scalar https://github.com/begriffs/postgrest/blob/master/src/PostgREST/Types.hs

[john-kelly]

Also https://www.postgresql.org/docs/9.6/static/extend-type-system.html