Question

I am trying to find the equivalent SQL of \dT using the information_schema and can’t seem to find anything. Does such a thing exist?

Example: If I add the following custom type enum, how can I see it in the information_schema?

CREATE TYPE communication.channels AS ENUM
   ('text_message',
    'email',
    'phone_call',
    'broadcast');

NOTE: I do have the exact SQL used by \dT (retrieved by turning up the logging) but I am looking specifically for a cleaner implementation using the information_schema

Answer 1

Enums are not in the SQL standard and therefore not represented in the information schema. Other user-defined types would normally be in the view user_defined_types, but that’s not implemented. So at the moment, you can’t use the information schema to list user-defined types in PostgreSQL.