Re: Alter table never finishes

On 2013-07-30 17:56:16 +0200, Giuseppe Broccolo wrote:
> >How can I force disconnect all clients to let me alter that table?.
> >
> >Regards,
>
> There are two ways: the first|is based on pg_terminate_backend()
> function and 'pg_stat_activity' catalog |||to kill idle processes.
> So in a psql session type (tried on PostgreSQL 8.4):
>
> ==# SELECT procpid, (SELECT pg_terminate_backend(procid)) AS killed
> from pg_stat_activity WHERE current_query LIKE '<IDLE>';
>
> A more heavy handed approach then should be used on terminal,
> forcing kill of idle processes using their pid:
>
> :$ for x in `ps -ef | grep -e "postgres.*idle" | awk '{print $2}'`;
> do kill -9 $x; done
>
> Hope it can help.
>
> Giuseppe.
>
> --
> Giuseppe Broccolo - 2ndQuadrant Italy
> PostgreSQL Training, Services and Support
> giuseppe.broccolo@2ndQuadrant.it | www.2ndQuadrant.it
>

Thanks to both, Giuseppe and Bricklen. As I have 9.2 I've used:

select pg_cancel_backend(pid) from pg_stat_activity where pid <> pg_backend_pid();

And it returned this:

pg_cancel_backend
-------------------
 t
 t
(2 rows)

But when I execute my update table command, it still never ends...Any
hint?.

--
Leonardo M. Ramé
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