Re: Support "Right Semi Join" plan shapes

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От vignesh C
Тема Re: Support "Right Semi Join" plan shapes
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Msg-id CALDaNm3uQWo7zj2KTtd9iH_yEVCToTGXDjay_9Jk-EmMf+_kAQ@mail.gmail.com
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Ответ на Re: Support "Right Semi Join" plan shapes  (Richard Guo <guofenglinux@gmail.com>)
Ответы Re: Support "Right Semi Join" plan shapes  (Richard Guo <guofenglinux@gmail.com>)
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On Wed, 1 Nov 2023 at 11:25, Richard Guo <guofenglinux@gmail.com> wrote:
>
>
> On Thu, Aug 10, 2023 at 3:24 PM Richard Guo <guofenglinux@gmail.com> wrote:
>>
>> The cfbot reminds that this patch does not apply any more, so rebase it
>> to v2.
>
>
> Attached is another rebase over the latest master.  Any feedback is
> appreciated.

One of the tests in CFBot has failed at [1] with:
-   Relations: (public.ft1 t1) SEMI JOIN (public.ft2 t2)
-   Remote SQL: SELECT r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6,
r1.c7, r1.c8 FROM "S 1"."T 1" r1 WHERE ((r1."C 1" < 20)) AND EXISTS
(SELECT NULL FROM "S 1"."T 1" r3 WHERE ((r3."C 1" > 10)) AND
((date(r3.c5) = '1970-01-17'::date)) AND ((r3.c3 = r1.c3))) ORDER BY
r1."C 1" ASC NULLS LAST
-(4 rows)
+   Sort Key: t1.c1
+   ->  Foreign Scan
+         Output: t1.c1, t1.c2, t1.c3, t1.c4, t1.c5, t1.c6, t1.c7, t1.c8
+         Relations: (public.ft1 t1) SEMI JOIN (public.ft2 t2)
+         Remote SQL: SELECT r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5,
r1.c6, r1.c7, r1.c8 FROM "S 1"."T 1" r1 WHERE ((r1."C 1" < 20)) AND
EXISTS (SELECT NULL FROM "S 1"."T 1" r3 WHERE ((r3."C 1" > 10)) AND
((date(r3.c5) = '1970-01-17'::date)) AND ((r3.c3 = r1.c3)))
+(7 rows)

More details are available at [2].

[1] - https://cirrus-ci.com/task/4868751326183424
[2] -
https://api.cirrus-ci.com/v1/artifact/task/4868751326183424/testrun/build/testrun/postgres_fdw/regress/regression.diffs

Regards,
Vignesh



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