Add:

> * Consider using hash buckets to do DISTINCT, rather than sorting
>
>   This would be beneficial when there are few distinct values.

Author: bmomjian

doc/TODO

@@ -5,7 +5,7 @@ TODO list for PostgreSQL
 Bracketed items "[]" have more detail.
 
 Current maintainer:	Bruce Momjian (pgman@candle.pha.pa.us)
-Last updated:		Mon Aug 30 12:08:12 EDT 2004
+Last updated:		Wed Sep  1 21:18:44 EDT 2004
 
 The most recent version of this document can be viewed at the PostgreSQL web site, http://www.PostgreSQL.org.
 
@@ -802,6 +802,9 @@ Optimizer / Executor
   CHECK constraints contain information about the distribution of values
   within the table. This is also useful for implementing subtables where
   a tables content is distributed across several subtables.
+* Consider using hash buckets to do DISTINCT, rather than sorting
+
+  This would be beneficial when there are few distinct values.
 
 
 Miscellaneous