Leon Oosterwijk wrote:
> All, 
> 
> I'm working on a school project that involves genetic algorithms. We thought
> it would be neat to parralelize the genetic algorithm in postgresql's query
> optimiser. We used pthreads and are able to spawn threads to deal with the
> query optimization, however on exit of the thread the postmaster blows up.
> Before we get into details is there any obvious reason postgres doesn't like
> to deal with threads? 

Yes, the backend code is not thread-safe.

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