Quoting Tom Lane <[EMAIL PROTECTED]>:

> Yeah, the whole thing is only a heuristic anyway.  I've been coming
> around to the view that relation membership shouldn't matter, because
> of cases like
>       WHERE a.x > b.y AND a.x < 42
> which surely should be taken as a range constraint.

Out of curiosity, will the planner induce "b.y < 42" out of this?

"Dreams come true, not free."

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