Hi,

GEQO's only function, basically, is to search for the join order to use.
> If you're constraining the join order completely with
> join_collapse_limit=1 then forcing the GEQO path to be taken would just
> add pointless overhead.  (If it does anything at all ... I don't remember
> the logic exactly but we might be bright enough not to bother with GEQO in
> such a situation, regardless of geqo_threshold.)
>

Got it. Thanks a lot.

Regards,

Juan José Santamaría

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