Query for describe locks

[paulo matadr <saddoness@xxxxxxxxxxxx>]

hi ALL.
i want  refine this query :

select pg_stat_activity.current_query , 
pg_class.relname,
pg_locks.transaction,
pg_locks.mode,
pg_locks.granted,
pg_stat_activity.procpid
from   pg_stat_activity,pg_locks
left outer join pg_class on (pg_locks.relation = pg_class.oid)
where  pg_locks.pid=pg_stat_activity.procpid
order by pg_locks.mode, pg_class.relname;

for the output is thereby:

"user"  "locked" "object "  "kind of lock" "who waiting for object" 

thankis for all

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