52.33. pg_user
  The view
  
   pg_user
  
  provides access to
   information about database users.  This is simply a publicly
   readable view of
  
   
    pg_shadow
   
  
  that blanks out the password field.
 
   
    Table 52.33. 
    
     pg_user
    
    Columns
   
  
| 
        Column Type Description  | 
     
|---|
| 
        
         User name  | 
     
| 
        
         ID of this user  | 
     
| 
        
         User can create databases  | 
     
| 
        
         User is a superuser  | 
     
| 
        
         User can initiate streaming replication and put the system in and out of backup mode.  | 
     
| 
        
         User bypasses every row-level security policy, see Section 5.9 for more information.  | 
     
| 
        
         
        Not the password (always reads as
          | 
     
| 
        
         Password expiry time (only used for password authentication)  | 
     
| 
        
         Session defaults for run-time configuration variables  |