diff --git a/server/AyaNova/util/AySchema.cs b/server/AyaNova/util/AySchema.cs
index f6800c4c..a0dc647c 100644
--- a/server/AyaNova/util/AySchema.cs
+++ b/server/AyaNova/util/AySchema.cs
@@ -57,6 +57,8 @@ namespace AyaNova.Util
         //http://www.npgsql.org/doc/types/basic.html
 
 
+        //if need to query a bit field:  https://www.ehfeng.com/querying-bitfield-with-sql/
+
         HOW TO INDEX
         https://www.postgresqltutorial.com/postgresql-indexes/postgresql-create-index/