From: Tom Lane <tgl@sss.pgh.pa.us>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Doc: note that two examples in optimizer/README are oversimplifi
Date: Wed, 09 Apr 2025 03:03:43 +0000
Message-ID: <E1u2Lj5-003Nim-0P@gemulon.postgresql.org> (raw)
Doc: note that two examples in optimizer/README are oversimplified.
These examples fail to account for join clauses generated by
EquivalenceClasses, but since we haven't mentioned EquivalenceClasses
yet it seems like it'd just add confusion to make them fully accurate.
Instead, parenthetically note that they're oversimplified.
Reported-by: Zeyuan Hu <ferrishu3886@gmail.com>
Co-authored-by: David Rowley <dgrowleyml@gmail.com>
Co-authored-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/CACvHWmYFo+60yMqKJajDDvKN5EM41YHrCT3oxukwXmGAqpWvyw@mail.gmail.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/dd496eedeaac7cc9023e8fbca709475868ed5d9a
Modified Files
--------------
src/backend/optimizer/README | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
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To: pgsql-committers@postgresql.org
Cc: tgl@sss.pgh.pa.us, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Doc: note that two examples in optimizer/README are oversimplifi
In-Reply-To: <E1u2Lj5-003Nim-0P@gemulon.postgresql.org>
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