9.2 release note updates from Peter Geoghegan

diff --git a/doc/src/sgml/release-9.2.sgml b/doc/src/sgml/release-9.2.sgml
index 0b43c3aa00d5b73ca9a5a9d17c6d9f811b86af25..ed8ce999fbb0f129630a324317ead60a4f4c7705 100644 (file)
--- a/doc/src/sgml/release-9.2.sgml
+++ b/doc/src/sgml/release-9.2.sgml
@@ -72,8 +72,8 @@
        
        
         Users should now use hstore(text, text).  Since
-        PostgreSQL 9.0, we have emitted a
-        warning message when an operator named => is created because
+        PostgreSQL 9.0, a warning message is
+        emitted when an operator named => is created because
         the SQL standard reserves that token for
         another use.
        
@@ -460,17 +460,6 @@
        
       
       
-      
-       
-        Make the visibility map crash-safe (Robert Haas, Noah Misch)
-       
-       
-       
-        This helps vacuum be more efficient, and is necessary for
-        index-only scans.
-       
-      
-      
       
        
         Improve GiST box and point index performance by producing better
@@ -545,9 +534,19 @@
       
       
        
-        Improve performance of WAL writes when multiple
-        transactions commit at the same time (Peter Geoghegan, Simon Riggs,
-        Heikki Linnakangas)
+        Improve performance of WAL writes using group
+        commit (Peter Geoghegan, Simon Riggs, Heikki Linnakangas)
+       
+      
+      
+      
+       
+        Make the visibility map crash-safe (Robert Haas, Noah Misch)
+       
+       
+       
+        This helps vacuum be more efficient, and is necessary for
+        index-only scans.
        
       
       
@@ -608,14 +607,15 @@
       
        
         Allow the bgwriter,
-        walwriter, and 
-        linkend="monitoring-stats">statistics collector to sleep
-        more efficiently during periods of inactivity (Peter Geoghegan,
-        Heikki Linnakangas, Tom Lane)
+        walwriter, 
+        linkend="monitoring-stats">statistics collector, archiver,
+        and checkpointer to sleep more efficiently during periods of
+        inactivity (Peter Geoghegan, Heikki Linnakangas, Tom Lane)
        
        
        
-        This reduces CPU wake-ups.
+        This reduces CPU wake-ups, which dramatically
+        reduces power consumption on idle servers.
        
       
       
@@ -2071,7 +2071,8 @@
        
        
        
-        We already supported minor-version-specific .psqlrc
+        psql already supported minor-version-specific
+        .psqlrc
         files.
        
       
@@ -2745,7 +2746,7 @@
        
        
         Specifically, only lock the old cluster if link mode is used,
-        and do it right after we restore the schema.
+        and do it right after the schema is restored.