1.PGSQL-查看sql正在运行的进程
SELECT datname,pid,state,query FROM pg_stat_activity where state='active'
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>'
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
SELECT pg_cancel_backend(进程id);
或者用系统函数
kill -9 进程id;
2.查看表是否被锁,解锁表
select oid from pg_class where relname='m_ss_kjcx_tech_inovate_talent'
select pid from pg_locks where relation='4384913'
--如果查询到了结果,表示该表被锁 则需要释放锁定
select pg_cancel_backend(140650678843136)
通过命令:
=# select pg_cancel_backend(线程id);
来kill掉指定的SQL语句。(这个函数只能 kill Select 查询,而updae,delete DML不生效)
使用可以kill 各种DML(SELECT,UPDATE,DELETE,DROP)操作=
=# select pg_terminate_backend(pid int)
-- PGSQL
select oid from pg_class where relname='m_ss_kjcx_tech_inovate_talent'
select pid from pg_locks where relation='4384913'
--如果查询到了结果,表示该表被锁 则需要释放锁定
select pg_cancel_backend(140650678843136)
--- 来查看有哪些SQL正在执行。 waiting='t'
select pid,backend_start,application_name,query_start,waiting,state ,query from pg_stat_activity
where query <>''
order by query_start asc
通过命令:
=# select pg_cancel_backend(线程id);
来kill掉指定的SQL语句。(这个函数只能 kill Select 查询,而updae,delete DML不生效)
使用可以kill 各种DML(SELECT,UPDATE,DELETE,DROP)操作=
=# select pg_terminate_backend(pid int)