How to diagnose and fix the 0P000 invalid_role_specification error code in Postgres.
The 0P000 error code in PostgreSQL, labeled as invalid_role_specification, indicates that there is an issue with the role or user-related information that is being used in a query or command. This can happen when trying to assign permissions, create new roles, or set role-specific database properties, and the role specified does not exist or is …