create table if not exists
      'message' (
        'id'
          int primary key not null auto_increment
          comment "id of the message, it is used in the client to check if a message has already been downloaded or not",
        'time'
          timestamp default current_timestamp
          comment "time when the message has been stored on the server",
        'user'
          varchar(50) not null
          comment "name of the user that sent the message",
        'msg'
          longtext not null
          comment "message content, must be armored gnupg encrypted format",
        foreign key ('user')
          references 'user'('name')
          on delete cascade
          on update cascade
      ) character set utf8 engine=innodb
        comment="table to hold all messages for later download by the receiver";