Re: Failed assertion in joininfo.c, remove_join_clause_from_rels

From: Alexander Korotkov <aekorotkov(at)gmail(dot)com>
To: Richard Guo <guofenglinux(at)gmail(dot)com>
Cc: Andreas Seltenreich <seltenreich(at)gmx(dot)de>, pgsql-hackers(at)lists(dot)postgresql(dot)org, Alexander Korotkov <akorotkov(at)postgresql(dot)org>
Subject: Re: Failed assertion in joininfo.c, remove_join_clause_from_rels
Date: 2023-12-27 12:21:08
Message-ID: CAPpHfdsG2uUEipt=yEeQuqWcRcJ=qzQ3yFbeR2ydMLY5dFgtAg@mail.gmail.com
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On Wed, Dec 27, 2023 at 2:04 PM Richard Guo <guofenglinux(at)gmail(dot)com> wrote:
> On Wed, Dec 27, 2023 at 8:00 PM Alexander Korotkov <aekorotkov(at)gmail(dot)com> wrote:
>>
>> On Wed, Dec 27, 2023 at 1:54 PM Andreas Seltenreich <seltenreich(at)gmx(dot)de> wrote:
>> > SQLsmith found a failing Assertion in joininfo.c on master. I can
>> > reproduce it on an assertion-enabled build like this:
>> >
>> > create table t1(a int primary key);
>> > create table t2(a int);
>> >
>> > select * from t2 right join
>> > (t1 as t1a inner join t1 as t1b on t1a.a = t1b.a)
>> > on t1a.a is not null and exists (select);
>> >
>> > -- TRAP: failed Assert("list_member_ptr(rel->joininfo, restrictinfo)"), File: "joininfo.c", Line: 144, PID: 777839
>>
>> Thank you for pointing this out. I'm investigating.
>
>
> This is the same issue with [1] and has been just fixed by e0477837ce.
>
> [1] https://www.postgresql.org/message-id/flat/CAMbWs4_wJthNtYBL%2BSsebpgF-5L2r5zFFk6xYbS0A78GKOTFHw%40mail.gmail.com

I just came to the same conclusion. Thank you, Richard.

------
Regards,
Alexander Korotkov

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