diff --git a/doc/src/sgml/release-9.2.sgml b/doc/src/sgml/release-9.2.sgml index fc477c84b0b..374ffb4599e 100644 --- a/doc/src/sgml/release-9.2.sgml +++ b/doc/src/sgml/release-9.2.sgml @@ -413,10 +413,11 @@ This is often called "index-only scans" or "covering indexes". This is possible for heap pages with exclusively all-visible - tuples, as reported by the visibility map. + tuples, as reported by the visibility map. The visibility map was + made crash-safe as a necessary part of implementing this feature. - + Allow frequently uncontended locks to be recorded using a new @@ -539,17 +540,6 @@ - - - Make the visibility map crash-safe (Robert Haas, Noah Misch) - - - - This helps vacuum be more efficient, and is necessary for - index-only scans. - - - Improve PowerPC and Itanium spinlock performance (Manabu Ori,