Re: Making Vars outer-join aware

On Mon, Feb 13, 2023 at 03:33:15PM +0800, Richard Guo wrote:
> On Mon, Feb 13, 2023 at 7:58 AM Justin Pryzby <pryzby(at)telsasoft(dot)com> wrote:
> > The patch broke this query:
> >
> > select from pg_inherits inner join information_schema.element_types
> > right join (select from pg_constraint as sample_2) on true
> > on false, lateral (select scope_catalog, inhdetachpending from
> > pg_publication_namespace limit 3);
> > ERROR: could not devise a query plan for the given query

> BTW, here is a simplified query that can trigger this issue on HEAD.
>
> select * from t1 inner join t2 left join (select null as c from t3 left
> join t4 on true) as sub on true on true, lateral (select c, t1.a from t5
> offset 0 ) ss;

It probably doesn't need to be said that the original query was reduced
from sqlsmith... But I mention that now to make it searchable.

Thanks,
--
Justin