diff --git src/main/docbkx/schema_design.xml src/main/docbkx/schema_design.xml
index b7ef410..876a51a 100644
--- src/main/docbkx/schema_design.xml
+++ src/main/docbkx/schema_design.xml
@@ -199,6 +199,13 @@ COLUMN CELL
Reverse Timestamps
+
+ Reverse Scan API
+
+ HBASE-4811 implements an API to scan a table or a range within a table in reverse, reducing the need to optimize your schema for forward or reverse scanning. This feature is available in HBase 0.98 and later. See for more information.
+
+
+
A common problem in database processing is quickly finding the most recent version of a value. A technique using reverse timestamps
as a part of the key can help greatly with a special case of this problem. Also found in the HBase chapter of Tom White's book Hadoop: The Definitive Guide (O'Reilly),
the technique involves appending (Long.MAX_VALUE - timestamp) to the end of any key, e.g., [key][reverse_timestamp].
@@ -504,6 +511,12 @@ long bucket = timestamp % numBuckets;
Neither approach is wrong, it just depends on what is most appropriate for the situation.
+
+ Reverse Scan API
+
+ HBASE-4811 implements an API to scan a table or a range within a table in reverse, reducing the need to optimize your schema for forward or reverse scanning. This feature is available in HBase 0.98 and later. See for more information.
+
+
Variangle Length or Fixed Length Rowkeys?