Re: Removing unneeded self joins - Mailing list pgsql-hackers

From Alexander Korotkov
Subject Re: Removing unneeded self joins
Date
Msg-id CAPpHfdtB0A1Rz8k5yPMCM6ngLt2JM4NSaG8rF0=wT-txdcEf3g@mail.gmail.com
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In response to Re: Removing unneeded self joins  (Alexander Korotkov <aekorotkov@gmail.com>)
Responses Re: Removing unneeded self joins
Re: Removing unneeded self joins
List pgsql-hackers
On Sun, Feb 18, 2024 at 5:04 PM Alexander Korotkov <aekorotkov@gmail.com> wrote:
> On Sun, Feb 18, 2024 at 3:00 PM Alexander Lakhin <exclusion@gmail.com> wrote:
> > 09.01.2024 01:09, Alexander Korotkov wrote:
> >
> > Fixed in 30b4955a46.
> >
> >
> > Please look at the following query which fails with an error since
> > d3d55ce57:
> >
> > create table t (i int primary key);
> >
> > select t3.i from t t1
> >  join t t2 on t1.i = t2.i,
> >  lateral (select t1.i limit 1) t3;
> >
> > ERROR:  non-LATERAL parameter required by subquery
>
> Thank you for spotting.  I'm looking at this.

Attached is a draft patch fixing this query.  Could you, please, recheck?

------
Regards,
Alexander Korotkov

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