The Postgrex types for a repository that stores the composite
tempo_range and tempo_multirange columns.
A composite keeps its expression in a jsonb field, and Postgrex
encodes jsonb with the JSON library its types name, Jason unless
told otherwise. These types name Tempo.SQL.JSON, which uses
Erlang's built-in :json, so no JSON dependency is needed. Name them
in the repository's configuration:
config :my_app, MyApp.Repo, types: Tempo.SQL.PostgresTypesAn application that needs other Postgrex extensions defines its own types with the same JSON library:
Postgrex.Types.define(MyApp.PostgresTypes, [MyApp.SomeExtension], json: Tempo.SQL.JSON)