From 56b62cbd01f2857a1f7e72614922b62148350a75 Mon Sep 17 00:00:00 2001 From: Simon Riggs Date: Fri, 1 Jun 2012 11:35:27 +0100 Subject: [PATCH] Clarify description of covering indexes in release notes --- doc/src/sgml/release-9.2.sgml | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/doc/src/sgml/release-9.2.sgml b/doc/src/sgml/release-9.2.sgml index a842d448e9..ce368e9098 100644 --- a/doc/src/sgml/release-9.2.sgml +++ b/doc/src/sgml/release-9.2.sgml @@ -425,7 +425,8 @@ - This is often called "index-only scans" or "covering indexes". + This is often called "index-only scans", a feature which now enables + the use of indexes with additional columns, or "covering indexes". This is possible for heap pages with exclusively all-visible tuples, as reported by the visibility map. The visibility map was made crash-safe as a necessary part of implementing this feature. -- 2.40.0