Improve two 9.2 release note items.

diff --git a/doc/src/sgml/release-9.2.sgml b/doc/src/sgml/release-9.2.sgml
index aea8fe70c1d696050db3ddb2a5e02b07aec0ff1c..f7d185b4528c43fc5adb3ee4456983f8b849d314 100644 (file)
--- a/doc/src/sgml/release-9.2.sgml
+++ b/doc/src/sgml/release-9.2.sgml
@@ -404,6 +404,7 @@
        </para>
        
        <para>
+        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.
        </para>
@@ -426,7 +427,7 @@
       
       <listitem>
        <para>
-        Reduce overhead of creating virtual transaction id locks ((Robert
+        Reduce overhead of creating virtual transaction id locks (Robert
         Haas, Jeff Davis)
        </para>
       </listitem>