Update for Oleg:

bmomjian · bmomjian · commit bac714b72a89 · 2002-04-18T04:07:04.000Z
&gt;   using a sequential scan for highest/lowest values (Oleg)
diff --git a/doc/TODO b/doc/TODO
@@ -1,6 +1,6 @@
 TODO list for PostgreSQL
 ========================
-Last updated:		Wed Apr 17 23:58:08 EDT 2002
+Last updated:		Thu Apr 18 00:04:58 EDT 2002
 
 Current maintainer:	Bruce Momjian (pgman@candle.pha.pa.us)
 
@@ -435,7 +435,7 @@ OPTIMIZER / EXECUTOR
 * Make IN/NOT IN have similar performance to EXISTS/NOT EXISTS [exists]
 * Missing optimizer selectivities for date, r-tree, etc. [optimizer]
 * Allow ORDER BY ... LIMIT to select top values without sort or index
-  using a sequential scan for highest/lowest values
+  using a sequential scan for highest/lowest values (Oleg)
 * Inline simple SQL functions to avoid overhead (Tom)
 * Precompile SQL functions to avoid overhead (Neil Conway)
 * Add utility to compute accurate random_page_cost value
