The firewall_membership table
          provides a view into the in-memory data cache for MySQL Enterprise Firewall. It
          lists the members (accounts) of registered firewall group
          profiles. It is used in conjunction with the
          mysql.firewall_membership system table that
          provides persistent storage of firewall data; see
          MySQL Enterprise Firewall Tables.
        
          The firewall_membership table has
          these columns:
- GROUP_ID- The group profile name. 
- MEMBER_ID- The name of an account that is a member of the profile. 
          The firewall_membership table has
          no indexes.
        
          TRUNCATE TABLE is not permitted
          for the firewall_membership
          table.
        
          The firewall_membership table was
          added in MySQL 8.0.23.