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

On 05.03.2024 05:44, Richard Guo wrote:

On Tue, Jan 30, 2024 at 2:51 PM Alena Rybakina <lena.riback...@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
Postgres Professional:http://www.postgrespro.com
The Russian Postgres Company

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