select pg_user.usename, pg_user.usesysid, pg_group.groname, pg_group.grolist from pg_user,pg_group;
usename | usesysid | groname | grolist
------------------------------+----------+----------------------------+---------
rdsdb | 1 | dwh_batch_group | {136}
awsuser | 100 | dwh_batch_group | {136}
dwh_batch_user_01 | 136 | dwh_batch_group | {136}
short_dwh_tools_user_01 | 137 | dwh_batch_group | {136}
short_users_l1_user_01 | 138 | dwh_batch_group | {136}
short_users_l2_user_01 | 139 | dwh_batch_group | {136}
short_application_l2_user_01 | 140 | dwh_batch_group | {136}
rdsdb | 1 | short_dwh_tools_group | {137}
awsuser | 100 | short_dwh_tools_group | {137}
dwh_batch_user_01 | 136 | short_dwh_tools_group | {137}
short_dwh_tools_user_01 | 137 | short_dwh_tools_group | {137}
short_users_l1_user_01 | 138 | short_dwh_tools_group | {137}
short_users_l2_user_01 | 139 | short_dwh_tools_group | {137}
short_application_l2_user_01 | 140 | short_dwh_tools_group | {137}
rdsdb | 1 | short_users_l1_group | {138}
awsuser | 100 | short_users_l1_group | {138}
dwh_batch_user_01 | 136 | short_users_l1_group | {138}
short_dwh_tools_user_01 | 137 | short_users_l1_group | {138}
short_users_l1_user_01 | 138 | short_users_l1_group | {138}
short_users_l2_user_01 | 139 | short_users_l1_group | {138}
short_application_l2_user_01 | 140 | short_users_l1_group | {138}
rdsdb | 1 | short_users_l2_group | {139}
awsuser | 100 | short_users_l2_group | {139}
dwh_batch_user_01 | 136 | short_users_l2_group | {139}
short_dwh_tools_user_01 | 137 | short_users_l2_group | {139}
short_users_l1_user_01 | 138 | short_users_l2_group | {139}
short_users_l2_user_01 | 139 | short_users_l2_group | {139}
short_application_l2_user_01 | 140 | short_users_l2_group | {139}
rdsdb | 1 | short_application_l2_group | {140}
awsuser | 100 | short_application_l2_group | {140}
dwh_batch_user_01 | 136 | short_application_l2_group | {140}
short_dwh_tools_user_01 | 137 | short_application_l2_group | {140}
short_users_l1_user_01 | 138 | short_application_l2_group | {140}
short_users_l2_user_01 | 139 | short_application_l2_group | {140}
short_application_l2_user_01 | 140 | short_application_l2_group | {140}
(35 rows)