I found a solution be changing the MySQL server setting optimizer_search_depth 
to 3 (default 62)

http://dev.mysql.com/doc/refman/5.0/en/controlling-optimizer.html
http://dev.mysql.com/doc/refman/5.0/en/server-system-variables.html#sysvar_optimizer_search_depth

My query had over 20 INNER JOINTS and it made the optimizer search a long 
process.

So at the moment a value of 3 is fine.

On 01.02.2011, at 21:20, Ivo Brodien wrote:

> The Change List that I am calling is a Intermediate Table if that is of any 
> interest.
> 
> Is it possible that there is some sort of circular inner joints or something?
> 
> 

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