| From: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Bogus lateral-reference-propagation logic in create_lateral_join_info |
| Date: | 2019-02-06 01:26:30 |
| Message-ID: | CAKJS1f_j1JMQsdX+LODUywNT0WqAy6L_eF+5oZQ4FkJ_afCLMQ@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Wed, 6 Feb 2019 at 10:57, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Also, I'd really like to know why I had to put in the exception seen
> in the loop for AppendRelInfos that do not point to a valid parent.
> It seems to me that that is almost certainly working around a bug in
> the partitioning logic. (Without it, the partition_prune regression test
> crashes.) Or would somebody like to own up to having created that state
> of affairs intentionally? If so why?
Sounds pretty strange to me. What exactly do you mean by not
pointing to a valid parent? Do you mean the parent_relid index is not
a valid RelOptInfo?
Can you point to the regression test that's doing this?
--
David Rowley http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Alvaro Herrera | 2019-02-06 01:35:12 | Re: Refactoring IndexPath representation of index conditions |
| Previous Message | Alvaro Herrera | 2019-02-06 01:21:40 | Re: [HACKERS] PATCH: multivariate histograms and MCV lists |