Re: Support "Right Semi Join" plan shapes - Mailing list pgsql-hackers

To be honest, I didn't see it in the code, could you tell me where they are, please?

On Tue, Jan 30, 2024 at 2:51 PM Alena Rybakina <lena.ribackina@yandex.ru> wrote:

I have reviewed your patch and I think it is better to add an Assert for
JOIN_RIGHT_SEMI to the ExecMergeJoin and ExecNestLoop functions to
prevent the use of RIGHT_SEMI for these types of connections (NestedLoop
and MergeJoin).

Hmm, I don't see why this is necessary.  The planner should already
guarantee that we won't have nestloops/mergejoins with right-semi joins.

Thanks
Richard

-- 
Regards,
Alena Rybakina
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