Re: lots of values for IN() clause - Mailing list pgsql-general

From Alvaro Herrera
Subject Re: lots of values for IN() clause
Date
Msg-id 20061102160255.GG25444@alvh.no-ip.org
Whole thread Raw
In response to Re: lots of values for IN() clause  (Alvaro Herrera <alvherre@commandprompt.com>)
List pgsql-general
Alvaro Herrera wrote:
> Markus Schiltknecht wrote:
> > Hi,
> >
> > One of our PostgreSQL 8.1.5 databases constantly crashed on a certain
> > query (backend SEGFAULTs). I've figured the crashes were caused by a
> > very long IN() clause.
> >
> > You can easily reproduce the crash by feeding the output of the python
> > script below to your database.
>
> I'd argue that you have max_stack_depth set to an invalid value (higher
> than your true stack limit).  I tried your example here on 8.1.5 and got
> this:

Forgot to quote the value:

alvherre=# show max_stack_depth ;
 max_stack_depth
-----------------
 2048
(1 fila)

This is a stock ix86 machine running Linux 2.6.

--
Alvaro Herrera                         http://www.flickr.com/photos/alvherre/
"Ellos andaban todos desnudos como su madre los parió, y también las mujeres,
aunque no vi más que una, harto moza, y todos los que yo vi eran todos
mancebos, que ninguno vi de edad de más de XXX años" (Cristóbal Colón)

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