In this post, I am sharing a script to find long running queries or sessions with the lock information of Greenplum database server.

In the below script, you can find the age column which gives you total execution time of running sessions. You can also find query lock related details.

select 
	age(now(),pg_stat_activity.query_start) as "age",
	pg_stat_activity.datname, pg_stat_activity.usename,
	pg_stat_activity.client_addr, pg_stat_activity.application_name,
	pg_locks.transactionid, pg_locks.transaction,
	pg_stat_activity.procpid, pg_stat_activity.query_start,
	pg_locks.mode, pg_stat_activity.current_query
from  pg_stat_activity, pg_locks
where pg_locks.pid = pg_stat_activity.procpid
and procpid <> pg_backend_pid()
and pg_locks.transactionid = pg_locks.transaction
order by 1 desc;