PostgreSQL锁查询与杀掉进程说明_MySQL

select a.locktype,a.database,a.pid,a.mode,a.relation,b.relname
from pg_locks a
join pg_class b on a.relation = b.oid
where upper(b.relname) = 'TABLE_NAME';

 locktype | database |  pid  |      mode       | relation | relname
----------+----------+-------+-----------------+----------+---------
 relation |   439791 | 26752 | AccessShareLock |  2851428 |table_name
 relation |   439791 | 26752 | ExclusiveLock   |  2851428 |table_name

select usename,current_query ,query_start,procpid,client_addr from pg_stat_activity where procpid=17509;

usename  |  current_query                |       query_start      | procpid |  client_addr   
-----------+----------------------------------------------------------------------------------------------------
-----------+-------------------------------+---------+----------------
 gpcluster | DELETE FROM TABLE_NAME WHERE A = 1  | 2011-05-14 09:35:47.721173+08 |   17509 | 192.168.165.18
(1 row)

 
> ps -ef|grep 17509
postgres 17509  4868  1 Nov18 ?        00:11:19 postgres: postgres mydb 192.168.165.18(56059) SELECT 
postgres 30832 30800  0 15:18 pts/3    00:00:00 grep 17509
> ps -ef|grep 17509
postgres 17509  4868  1 Nov18 ?        00:11:19 postgres: postgres mydb 192.168.165.18(56059) SELECT 
postgres 30838 30800  0 15:19 pts/3    00:00:00 grep 17509
> kill -9 17509