Re: Path to enable a module to change the stack_base_ptr

Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> >> Tom Lane wrote:
> >>> I'm not really in favor of this ... I think you are trying to make the
> >>> backend do something that will never work reliably.
>
> > Do we want to make this change for 8.1?
>
> I don't want to do it at all. The justification given is to allow the
> backend to support multithreading introduced by an add-on library, which
> is a hopeless cause. Removing "static" from that variable declaration
> is surely a cheap enough change, but what about the next request, and
> the one after that?

Well, I have not seen the next request yet, but it seems harmless for a
useful extension to the database, namely PL/Java. I do believe this is
one of the reasons PL/J took a different approach, though.

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