``` SELECT locker.pid, pc.relname, locker.mode, locker_act.application_name, least(query_start,xact_start) start_time, locker_act.state, CASE WHEN granted='f' THEN 'wait_lock' WHEN granted='t' THEN 'get_lock' END lock_satus,current_timestamp - least(query_start,xact_start) AS runtime, locker_act.query FROM pg_locks locker,pg_stat_activity locker_act, pg_class pc WHERE locker.pid=locker_act.pid AND NOT locker.pid=pg_backend_pid() AND application_name<>'pg_statsinfod' AND locker.relation = pc.oid AND pc.reltype<>0 --and pc.relname='t' ORDER BY runtime desc; SELECT pg_terminate_backend(14448) ``` ``` playboy=> select pg_size_pretty(pg_total_relation_size('test')); //查看表的总大小,包括索引大小 pg_size_pretty playboy=> select pg_size_pretty(pg_relation_size('test')); //以KB,MB,GB的方式来查看表大小 pg_size_pretty ```