Robert Haas <robertmh...@gmail.com> wrote: > If, as you suggest, it isn't actually useful, then why keep it at > all? I was imagining that someone who has a query which is taking a long time to run, and asserts that it would run faster if only the optimizer would arrange the joins a certain way, could test that theory, as part of the diagnostic process. (In other words, for similar reasons that the other enable_* GUC settings exist.) I would certainly not want to use it in production, and wouldn't expect that would normally be a very good idea. -Kevin
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