| From: | Andrei Lepikhov <lepihov(at)gmail(dot)com> |
|---|---|
| To: | PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Richard Guo <guofenglinux(at)gmail(dot)com> |
| Subject: | The varnullingrels bitmapset is not only about outer joins |
| Date: | 2025-04-10 07:40:28 |
| Message-ID: | e4065516-e9a3-4730-aa99-698c2f909dcc@gmail.com |
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| Thread: | |
| Lists: | pgsql-hackers |
Hi,
designing things upon fresh master I found that varnullingrels contains
numbers that is out of the outer joins index range.
Anywhere in documentation I see that this field contains outer join
relids. But after the 247dea8 it simply isn't true.
So, I propose at least to change comments (see attachment). Since the
doc was out of scope, I wonder if someone analysed the impact of this
change on the whole optimiser logic.
--
regards, Andrei Lepikhov
| Attachment | Content-Type | Size |
|---|---|---|
| fix.diff | text/x-patch | 1.7 KB |
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