From: | "Scott Marlowe" <scott(dot)marlowe(at)gmail(dot)com> |
---|---|
To: | carlos(dot)reimer(at)opendb(dot)com(dot)br |
Cc: | "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "Pgsql-General(at)Postgresql(dot)Org" <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: RES: 8.2.4 selects make applications wait indefinitely |
Date: | 2007-10-12 01:32:33 |
Message-ID: | dcc563d10710111832l62d56d44o5da969397234f7f5@mail.gmail.com |
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Thread: | |
Lists: | pgsql-general |
On 10/11/07, Carlos H. Reimer <carlos(dot)reimer(at)opendb(dot)com(dot)br> wrote:
> > On 10/11/07, Carlos H. Reimer <carlos(dot)reimer(at)opendb(dot)com(dot)br> wrote:
> > > > "Carlos H. Reimer" <carlos(dot)reimer(at)opendb(dot)com(dot)br> writes:
> > > > > SELECT * or naming all the columns locks the client
> > > > application. Yesterday
> > > > > I´ve wrongly said that when naming all the columns instead of
> > > > using the *
> > > > > the applications did not lock.
> > > >
> > > > Hm, are you sure it's not one specific column that's causing the
> > > > problem?
> > > Yes, I´ve just doublechecked again. The table has 11 columns, I used 11
> > > SELECTs, one for each column, and all run successfully. Started
> > adding more
> > > columns, no problem. When the full list of columns was specified in the
> > > SELECT it locked.
> >
> > If you turn on stats_command_string do you see in
> >
> > select * from pg_stat_activity;
> >
> > for the current_query ???
>
> It´s "<IDLE>" but the "query_start" column is refreshed.
Then the query runs and finishes and the problem is something to do
with the delivery of the data. Not sure after that...
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