查看postgre都有哪些语句执行时间长

查看所有postgre语句执行时间：

select
procpid,
start,
now() - start as lap,
current_query
from
(select
backendid,
pg_stat_get_backend_pid(s.backendid) as procpid,
pg_stat_get_backend_activity_start(s.backendid) as start,
pg_stat_get_backend_activity(s.backendid) as current_query
from
(select pg_stat_get_backend_idset() as backendid) as s
) as s
where
current_query <> ‘<IDLE>‘ --and procpid = 17637
order by
lap desc;

• procpid：进程id
• start：进程开始时间
• lap：经过时间
• current_query：执行中的sql

怎样停止正在执行的sql？

优雅的方法：SELECT pg _cancel_backend(进程id);

或者用系统函数：kill -9 进程id;

查看postgre都有哪些语句执行时间长