Merge branch 'master' of https://github.com/davidwfranco/sql

David FRANCO · David FRANCO · commit 07c8f9d11393 · 2018-02-21T12:07:58.000-03:00
diff --git a/selectivity.sql b/selectivity.sql
@@ -1,4 +1,6 @@
-/* Get the quality of an column or group of columns to be used in an index */
+/* Get the quality of an column or group of columns to be used in an index 
+Returns the total rows on the table, the number of distinct values, and min, avg and max rows returned 
+using this set of columns*/
 
 column sum         for 9999999999 head 'Total #| Rows'
 column cnt         for 9999999999 head 'Total #| Dist Values'
