| From: | Richard Guo <guofenglinux(at)gmail(dot)com> |
|---|---|
| To: | Ilia Evdokimov <ilya(dot)evdokimov(at)tantorlabs(dot)com> |
| Cc: | Antonin Houska <ah(at)cybertec(dot)at>, Pg Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Andy Fan <zhihuifan1213(at)163(dot)com>, David Rowley <dgrowleyml(at)gmail(dot)com> |
| Subject: | Re: Tracking per-RelOptInfo uniqueness during planning |
| Date: | 2026-08-25 08:18:37 |
| Message-ID: | CAMbWs4-mQ+YwA+J5LtHiZHFhxF5Oyd15wLOEA+d0+XbPj409Hg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Aug 18, 2026 at 9:31 PM Ilia Evdokimov
<ilya(dot)evdokimov(at)tantorlabs(dot)com> wrote:
> planner.c: create_partial_unique_paths()
> ```
> partial_unique_rel->cheapest_parameterized_paths = NIL;
> +partial_unique_rel->uniquekeys = NIL;
>
> /* Estimate number of output rows */
> ```
Thanks. Fixed in v4. v4 also drops the costsize.c changes from 0003,
as the costing issue has been fixed on master.
- Richard
| Attachment | Content-Type | Size |
|---|---|---|
| v4-0001-Introduce-UniqueKeys-to-track-the-distinctness-of.patch | application/octet-stream | 128.5 KB |
| v4-0002-Teach-UniqueKeys-about-appendrel-children-and-chi.patch | application/octet-stream | 12.4 KB |
| v4-0003-Teach-UniqueKeys-about-eager-aggregation-s-groupe.patch | application/octet-stream | 33.0 KB |
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