Re: [COMMITTERS] pgsql: Provide much better wait information in pg_stat_activity.

2016-03-10 22:24 GMT+01:00 Robert Haas <robertmhaas(at)gmail(dot)com>:

>
> rhaas=# select query, state, wait_event, wait_event_type from
> pg_stat_activity;
> query
> | state | wait_event | wait_event_type
>
> -------------------------------------------------------------------------+--------+---------------+-----------------
> select query, state, wait_event, wait_event_type from
> pg_stat_activity; | active | |
> select * from foo for update;
> | active | transactionid | Lock
> (2 rows)
>
> ...which looks right to me.
>
> > session two:
> > rollback; begin; select * from foo where a = 10 for update;
> > session two is waiting again
>
> I don't see how you can do this here - the session is blocked.
>
> There could well be a bug here, but I need a little more help to find it.
>

Maybe it be clear from attached text file

Regards

>
> --
> Robert Haas
> EnterpriseDB: http://www.enterprisedb.com
> The Enterprise PostgreSQL Company
>