Robert Haas <[email protected]> writes:
> On Thu, Jul 8, 2010 at 3:05 PM, Tom Lane <[email protected]> wrote:
>> Right, but look for example at the logic involved with the current outer
>> join transformation identity #3, which can't be applied unless the join
>> predicate is strict for the left-hand side. We avoid doing the dogwork
>> to test that more than once.
> Uh... where exactly is that logic? I've been looking for it for 2
> years and haven't found it yet.
Look at the code that deals with SpecialJoinInfo.lhs_strict. There
isn't very much of it (which is precisely my point ...)
regards, tom lane
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