| From: | Richard Guo <guofenglinux(at)gmail(dot)com> |
|---|---|
| To: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
| Cc: | James Coleman <jtc331(at)gmail(dot)com>, Justin Pryzby <pryzby(at)telsasoft(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: sqlsmith crash incremental sort |
| Date: | 2020-04-17 09:03:34 |
| Message-ID: | CAMbWs4_g7Ep1_WKM6MAtXeO5-AFNi91N+OxHGCiHBYc2x4JdzA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Apr 17, 2020 at 7:13 AM Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>
wrote:
> On Thu, Apr 16, 2020 at 08:44:16PM +0200, Tomas Vondra wrote:
> >
> >Yeah, that's not entirely close to me. But maybe it shows us where we to
> >get the unprocessed target list?
> >
>
> I think at the very least this needs to apply the same change also to
> generate_nonunion_paths, because otherwise this fails because of the
> same issue:
>
> set enable_hashagg = off;
> explain select * from foo except select * from foo order by 1, 3;
>
Ah yes, that's what I'll have to do to cope with EXCEPT/INTERSECT.
Thanks
Richard
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