| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Andrey Lepikhov <a(dot)lepikhov(at)postgrespro(dot)ru> |
| Cc: | Zhihong Yu <zyu(at)yugabyte(dot)com>, Ronan Dunklau <ronan(dot)dunklau(at)aiven(dot)io>, Greg Stark <stark(at)mit(dot)edu>, Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>, Hywel Carver <hywel(at)skillerwhale(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Removing unneeded self joins |
| Date: | 2022-12-06 18:46:43 |
| Message-ID: | 20221206184643.zya44h5auv6f45zp@awork3.anarazel.de |
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| Thread: | |
| Lists: | pgsql-hackers |
Hi,
On 2022-10-05 17:25:18 +0500, Andrey Lepikhov wrote:
> New version, rebased onto current master.
> Nothing special, just rebase.
This doesn't pass the main regression tests due to a plan difference.
https://cirrus-ci.com/task/5537518245380096
https://api.cirrus-ci.com/v1/artifact/task/5537518245380096/testrun/build/testrun/regress/regress/regression.diffs
diff -U3 /tmp/cirrus-ci-build/src/test/regress/expected/join.out /tmp/cirrus-ci-build/build/testrun/regress/regress/results/join.out
--- /tmp/cirrus-ci-build/src/test/regress/expected/join.out 2022-12-05 19:11:52.453920838 +0000
+++ /tmp/cirrus-ci-build/build/testrun/regress/regress/results/join.out 2022-12-05 19:15:21.864183651 +0000
@@ -5806,7 +5806,7 @@
Nested Loop
Join Filter: (sj_t3.id = sj_t1.id)
-> Nested Loop
- Join Filter: (sj_t3.id = sj_t2.id)
+ Join Filter: (sj_t2.id = sj_t3.id)
-> Nested Loop Semi Join
-> Nested Loop
-> HashAggregate
Greetings,
Andres Freund
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