--;;-- load-session
select expiration , store 
  from session_t 
 where session_uuid = ?uuid 

--;;-- make-session!
insert into session_t
     ( session_uuid , expiration , store ) 
select ?uuid , ?expiration , ?store 

--;;-- save-session!
update session_t 
   set expiration = ?expiration 
     , store = ?store 
 where session_uuid = ?uuid 

--;;-- destroy-session!
delete from session_t 
 where session_uuid = ?uuid