On 7/31/07, Michael Fuhr <[EMAIL PROTECTED]> wrote:
>
> On Tue, Jul 31, 2007 at 10:35:25AM +1200, adey wrote:
> > -- CAUTION: this query may impact system performance as you are
> selecting
> > from system tables
>
> What difference are you expecting that to make and why?
It was a warning I recei
On Tue, Jul 31, 2007 at 10:35:25AM +1200, adey wrote:
> -- CAUTION: this query may impact system performance as you are selecting
> from system tables
What difference are you expecting that to make and why?
--
Michael Fuhr
---(end of broadcast)---
On Mon, Jul 30, 2007 at 07:11:11PM +0300, Milen A. Radev wrote:
> I have performance problems with a DB (slow queries) and I suspect the
> main cause is that a lot of queries wait for a lock on one small
> table. That's why I need some stats about the number and (average)
> wait-time for locks (eve
Try this query for a start, and add system tables to the join to find what
you want:-
-- displays locks with database name and username, but not table
-- CAUTION: this query may impact system performance as you are selecting
from system tables
select
relation
, c.relname
, u.usename
, pid
I have performance problems with a DB (slow queries) and I suspect the
main cause is that a lot of queries wait for a lock on one small
table. That's why I need some stats about the number and (average)
wait-time for locks (even only for this particular table).
After a bit of googling I found a pr
