Merge visibility map crash-safety into index-only scan release note

item, per Robert Haas.

diff --git a/doc/src/sgml/release-9.2.sgml b/doc/src/sgml/release-9.2.sgml
index fc477c84b0b47e17d2039ec81b422c62c07655e6..374ffb4599e97ed58438487ccdae2bbbe7ad7027 100644 (file)
--- 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,