Hello, Using PostgreSQL 9.6.9 on Linux amd64 platform. I have two users that I cannot drop from the system. I revoked all permissions from tables, sequences, functions. They do not own any objects. My log lines are as following: 2018-08-03 23:24:03.897 There are 2 users that needs to be removed from system. 2018-08-03 23:24:03.897 Removing user previliges on tables: pars.test 2018-08-03 23:24:03.899 Removing user previliges on sequences: pars.test 2018-08-03 23:24:03.900 Removing user previliges on functions: pars.test 2018-08-03 23:24:03.900 Dropping user itself: pars.test 2018-08-03 23:24:03.901 Drop user failed: SQL Error: ERROR: role "pars.test" cannot be dropped because some objects depend on it AYRINTI: 1 object in database postgres 2018-08-03 23:24:03.901 Removing user previliges on tables: pars.test2 2018-08-03 23:24:03.902 Removing user previliges on sequences: pars.test2 2018-08-03 23:24:03.903 Removing user previliges on functions: pars.test2 2018-08-03 23:24:03.903 Dropping user itself: pars.test2 2018-08-03 23:24:03.904 Drop user failed: SQL Error: ERROR: role "pars.test2" cannot be dropped because some objects depend on it AYRINTI: 1 object in database postgres I could not find any reference on postgres database for these users. I am not very good on database administration. Any help is appreciated. Thanks & regards, Ertan