From: | Laurette Cisneros <laurette(at)nextbus(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: bug in join? |
Date: | 2002-01-02 22:31:45 |
Message-ID: | Pine.LNX.4.33.0201021431080.17257-100000@visor.corp.nextbus.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers |
Will keep trying. I also noticed that several triggers were dropped when I
dropped the table. I need to add these back and see if they make a
difference.
More as I have it...
L.
On Wed, 2 Jan 2002, Tom Lane wrote:
> Laurette Cisneros <laurette(at)nextbus(dot)com> writes:
> > I will keep trying to recreate it for you.
>
> You could just try
>
> analyze b;
> analyze d;
> explain select * from b,d where b.address = d.address;
>
> and repeat until you see the error from EXPLAIN. Since ANALYZE takes
> a random sampling these days, successive loops will in fact produce
> slightly different results, and you may be able to recreate the
> erroneous state eventually.
>
> The math in eqjoinsel() is not entirely trivial, but I thought I had
> convinced myself it was okay. I need to see a failing example to
> figure out what's wrong with it.
>
> regards, tom lane
>
--
Laurette Cisneros
(510) 420-3137
NextBus Information Systems, Inc.
www.nextbus.com
Passenger Information Everywhere
From | Date | Subject | |
---|---|---|---|
Next Message | Laurette Cisneros | 2002-01-02 22:32:52 | Re: bug in join? |
Previous Message | Tom Lane | 2002-01-02 22:29:56 | Re: bug in join? |