Alvaro Herrera <[EMAIL PROTECTED]> writes:
> Yes, but how can you tell by looking at the explain? I think the point
> is that the "fraction that would be skipped" should be reported somehow.
It is: it's directly reflected in the startup cost. Previously, a
mergejoin would always have startup cost equal to the sum of its
input startup costs (hence, zero in the cases of interest here).
regards, tom lane
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