--List databases

select datname,datacl from pg_database;

--List Schemas

select nspname from pg_catalog.pg_namespace;

-- List User Roles

select * from pg_user;

-- List Group Roles

select * from pg_group;

-- Group role, user mapping

select b.groname,a.usename from pg_user a, (select
groname,grosysid,
unnest(grolist) as useid
from pg_group pgg
--where groname='readonly'
) as b
where a.usesysid=b.useid
order by 1,2;

-- Priv granted to group role

select grantee as rolename,privilege_type as priv, table_schema as schemaname,table_name as tabname, grantor as tableowner
from information_schema.role_table_grants where grantee= ' readonly ';sachi=# select schemaname,viewname from pg_views where viewname like '%priv%'; schemaname | viewname --------------------+---------------------- information_schema | table_privileges information_schema | usage_privileges information_schema | data_type_privileges information_schema | column_privileges information_schema | routine_privileges (5 rows) sachi=#

sachi=# select schemaname,viewname from pg_views where viewname like '%rol%';
schemaname | viewname
--------------------+-----------------------------------
gp_toolkit | gp_resq_role
pg_catalog | pg_roles
information_schema | applicable_roles
information_schema | administrable_role_authorizations
information_schema | enabled_roles
information_schema | role_column_grants
information_schema | role_routine_grants
information_schema | role_table_grants
information_schema | role_usage_grants
gp_toolkit | gp_roles_assigned
(10 rows)

UNIX Way

$pg_dump -s -c sachi |egrep "${SCHEMAS}\..*OWNER TO" >>privilagesddl.sql