I … Install pg-top (in Debian, the package is called "ptop"). To know the login name of the currently logged in user we can run the below command. same for user defined types, domains and so on - using "+" after the meta-command will show you privileges if applicable. Query select usesysid as user_id, usename as username, usesuper as is_superuser, passwd as password_md5, valuntil as password_expiration from pg_shadow order by usename; Become the postgres user (e.g. Step #3: Now connect to database server. On Wed, Jun 9, 2010 at 2:52 AM, Schwaighofer Clemens <[hidden email]> wrote: > Hi, > > I am trying to figure out how I can show the current search_path, or > better the first search_path entry (the active schema) in the PROMPT > variable for psql. Following are the most commonly used PostgreSQL user-related meta commands: The \du command will show all of the existing PostgreSQL users. The logged in user information is stored in environment variables. Super user account in postgres is : postgres which is the database user and also OS user having all the access like :Superuser, Create role, Create DB, Replication, Bypass RLS etc.. See also pg-top, which acts like top except it shows postgres activity. Below is the process of logging in to PostgreSQL Database Server : [root@hostname ~]# psql -Upostgres Password for user postgres psql (9.4.5) Type "help" for help. SHOW search_path; The output is as follows: ... which has the same name as the current user. GRANT query also provides us with one more facility to grant membership to a particular role. Again the simplest way to connect as the postgres user is to change to the postgres unix user on the database server using su command as follows: # su - postgres. Download PostgreSQL For Linux and Windows systems here; Common PostgreSQL User Commands. ROLES: PostgreSQL manages database access permissions using the concept of roles. States of a connection Identifying the connection states and duration Identifying the connections that are not required Terminating a connection when necessary I deliberately skip function and language privileges here, found in psql manual as barely manipulated (and if you do use those privileges you wont come here for an advise). Whenever a new user is created, it has the default privileges on the database object. So just by printing the value in these environment variables we can get to know the login name. PostgreSQL: Find Users logged into PostgreSQL Question: Is there a query to run that will return all Users that are currently logged into PostgreSQL? For example, if you use the postgres user to login and access the staff table. In PostgreSQL, whenever you want to assign privileges for certain database object then you can use the GRANT query statement. A role can be thought of as either a database user, or a group of database users, depending on how the role is set up. This article discusses connections to PostgreSQL database servers. > > Is there any way to do that? PostgreSQL will search for the staff table in the postgres schema. You need to login as database super user under postgresql server. Prerequisites for Listing users in PostgreSQL. sudo su postgres ) It first reviews the possible states for a connection and then shows how to identify and terminate connections that are lying idle and consuming resources. IOW, same results as before. The PostgreSQL server must be properly installed, configured and running. In Windows OS, we can find the current logged in username from windows command line. Same results setting user's log_statement to none and all. However, the user's ddl and mod statements were logged; I expected only the ddl statement. Introduction to PostgreSQL GRANT. Test 2: log_statement = 'all' #in postgresql.conf This time, all the user's statements were logged, regardless of what the user's log_statement was set to. 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