How to check role of current PostgreSQL user from Qt application?
I have some application based on Qt library and using QPSQL driver. In PostreSQL defined a few user roles (e.g: admin, operator, user). My application creates a connection to postgres server under specified user. How can I check the users role?
SELECT current_user; -- user name of current execution context SELECT session_user; -- session user name
Meaning, session_user shows the role you connected with, and current_user shows the role you are currently operating with, for instance after calling SET role some_other_role;.
You can check PostgreSQL user permissions with this query:
SELECT * FROM pg_roles;