Robert Haas <[email protected]> writes:
> On Jul 7, 2009, at 4:56 PM, Tom Lane <[email protected]> wrote:
>> My own thought is that from_collapse_limit has more justification,
> That's pretty much where I am with it, too. The feature I was
> referring to was not the collapse limits, but the ability to
> explicitly specify the join order, which perhaps could be a useful
> tool for reducing planning time or coping with bad estimates if you
> could do it for only some of the joins in the query, but which we're
> instead proposing to keep as an all-or-nothing flag.
It's pretty much all-or-nothing now: the GUC does not give you any sort
of useful control over *which* joins are reorderable.
regards, tom lane
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