doc PG 17 relnotes: add two optimizer items

Bruce Momjian <bruce@momjian.us>

Commit: 1a48f8b40dc0fe0af67303d7e05df5f93cad36fb
Author: Bruce Momjian <bruce@momjian.us>
Date: 2024-05-15T00:37:01Z
Releases: 17.0
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

Files

PathChange+/−
doc/src/sgml/release-17.sgml modified +22 −0

Documentation touched