Hi,
> What do you think about this in my last reply? "If my above > analysis is correct, I think the best way to handle this is if there > is no more tables to join, we use cheapest fraction cost for all > the kinds of relations, including plain relation, append rel, > subquery and so on, If we have more tables to join, we use > cheapest startup cost.". This is what is in my mind now. > > Here is an updated version to show what's in my mind. -- Best Regards Andy Fan
v3-0001-make-add_paths_to_append_rel-aware-of-startup_cos.patch
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