diff options
Diffstat (limited to 'doc/src')
| -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 a842d448e9e..ce368e90988 100644 --- a/doc/src/sgml/release-9.2.sgml +++ b/doc/src/sgml/release-9.2.sgml @@ -425,7 +425,8 @@ </para> <para> - This is often called "index-only scans" or "covering indexes". + This is often called "index-only scans", a feature which now enables + the use of indexes with additional columns, or "covering indexes". This is possible for heap pages with exclusively all-visible tuples, as reported by the visibility map. The visibility map was made crash-safe as a necessary part of implementing this feature. |