DROP USER
DROP USER
DROP USER - remove a database role
Synopsis
DROP USER [ IF EXISTS ] name [, ...]
 Description
   
    DROP USER
   
   is simply an alternate spelling of
   
    
     DROP ROLE
    
   
   .
  
Compatibility
   The
   
    DROP USER
   
   statement is a
   
    PostgreSQL
   
   extension.  The SQL standard
   leaves the definition of users to the implementation.