From 092e72a93023fc9cea9cf673ab577ccd8537fb69 Mon Sep 17 00:00:00 2001 From: Bruce Momjian Date: Mon, 5 May 2025 12:30:35 -0400 Subject: [PATCH] doc PG 18 relnotes: adjust hash item Reported-by: David Rowley Discussion: https://postgr.es/m/CAApHDvrNmGncNgZMh2oBG5K-+4d1LGJgzrz7180OcHRT1VFojw@mail.gmail.com --- doc/src/sgml/release-18.sgml | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/doc/src/sgml/release-18.sgml b/doc/src/sgml/release-18.sgml index 86c4a231684..b281e210aae 100644 --- a/doc/src/sgml/release-18.sgml +++ b/doc/src/sgml/release-18.sgml @@ -363,12 +363,28 @@ Allow merge joins to use incremental sorts (Richard Guo) -Improve the performance of hash joins (David Rowley) +Improve the performance and reduce memory usage of hash joins and GROUP BY (David Rowley, Jeff Davis) § +§ +§ +§ +§ + + + +This also improves hash set operations used by EXCEPT, and hash lookups of subplan values. -- 2.30.2