SELECT grantee, table_schema, table_name, table_type, array_agg(privilege_type::TEXT) AS privileges, Count(*) AS number_of_privileges
FROM information_schema.table_privileges INNER JOIN information_schema.tables USING (table_schema, table_name)
WHERE table_schema NOT IN  (SELECT schema_name
FROM INFORMATION_SCHEMA.schemata
WHERE schema_name<>'public' AND
schema_owner='postgres' AND schema_name IS NOT NULL)
GROUP BY grantee, table_schema, table_name, table_type
ORDER BY Count(*) DESC, table_type, table_schema, table_name;