When creating a new database in PostgreSQL or when creating a new connection to an existing database from a new client, it is recommended that a dedicated database user is used.

Each database user must only be granted the permissions needed to solve it’s purpose.

The following SQL command allows you to obtain the current PostgreSQL privileges configured in the active database:

SELECT grantee, table_name, privilege_type 
FROM information_schema.role_table_grants

This command will output some like:

grantee	Table_name	privilege_type
management_username	users	INSERT
management_username	users	SELECT
management_username	users	UPDATE
management_username	users	DELETE
management_username	users	TRUNCATE
management_username	users	REFERENCES
management_username	users	TRIGGER
statistics_username	sessions	SELECT

However, you may only execute this SQL and get the PostgreSQL privileges as an admin user.