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| -rw-r--r-- | doc/src/sgml/release-9.2.sgml | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/doc/src/sgml/release-9.2.sgml b/doc/src/sgml/release-9.2.sgml index aea8fe70c1d..f7d185b4528 100644 --- 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> |