Re: BUG #19649: Qual pushdown into GROUP BY subqueries ignores non-equivalence-preserving references to grouping col

From: Andrey Rachitskiy <pl0h0yp1(at)gmail(dot)com>
To: Andrei Lepikhov <lepihov(at)gmail(dot)com>
Cc: 303677365(at)qq(dot)com, pgsql-bugs(at)lists(dot)postgresql(dot)org, Tender Wang <tndrwang(at)gmail(dot)com>
Subject: Re: BUG #19649: Qual pushdown into GROUP BY subqueries ignores non-equivalence-preserving references to grouping col
Date: 2026-09-06 13:09:36
Message-ID: CAB8bMivMXBOL3Utbaw0wmsNo76fP5H6aeSvek-92jzPH8ZWqGA@mail.gmail.com
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сб, 5 сент. 2026 г. в 21:48, Andrey Rachitskiy <pl0h0yp1(at)gmail(dot)com>:

> I will try to implement it.
>
>
Hi, Tender, Andrei!

Please review v5. It uses BTEQUALIMAGE_PROC and updates btree.sgml /
select.sgml.A small refactoring is also included.

Attachment Content-Type Size
v5-0001-Fix-qual-pushdown-using-btree-equalimage.patch text/x-patch 28.0 KB

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