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Re: lots of values for IN() clause

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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:

alvherre=# \i foo
CREATE TABLE
psql:foo:2: ERROR:  stack depth limit exceeded
HINT:  Increase the configuration parameter "max_stack_depth".
DROP TABLE

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.


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