From 1a48f8b40dc0fe0af67303d7e05df5f93cad36fb Mon Sep 17 00:00:00 2001 From: Bruce Momjian Date: Tue, 14 May 2024 20:36:36 -0400 Subject: [PATCH] doc PG 17 relnotes: add two optimizer items One is about subqueries becoming joins and the other is about optimizing LIMIT by improving startup cost. Reported-by: Andy Fan Discussion: https://postgr.es/m/87h6f4ncc6.fsf@163.com Reviewed-by: David Rowley Backpatch-through: master --- doc/src/sgml/release-17.sgml | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/doc/src/sgml/release-17.sgml b/doc/src/sgml/release-17.sgml index 38c14970822..fa0a703629c 100644 --- a/doc/src/sgml/release-17.sgml +++ b/doc/src/sgml/release-17.sgml @@ -356,6 +356,28 @@ Improve optimization of range values when using containment operators <@ and + + + + +Allow correlated IN subqueries to be transformed into joins (Andy Fan, Tom Lane) + + + + + + + +Improve optimization of the LIMIT clause on partitioned tables, inheritance parents, and UNION ALL queries (Andy Fan, David Rowley) + + +