From 9a741aa1467ee76d3065032afb7c76e870d0aa41 Mon Sep 17 00:00:00 2001
From: Konsta Vesterinen <konsta.vesterinen@gmail.com>
Date: Thu, 23 Jan 2014 09:49:24 +0200
Subject: [PATCH] Update agg docs

---
 sqlalchemy_utils/aggregates.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sqlalchemy_utils/aggregates.py b/sqlalchemy_utils/aggregates.py
index 744a734..3be41b3 100644
--- a/sqlalchemy_utils/aggregates.py
+++ b/sqlalchemy_utils/aggregates.py
@@ -84,6 +84,9 @@ Simple aggregates
 Custom aggregate expressions
 ----------------------------
 
+Aggregate expression can be virtually any SQL expression not just a simple function taking one parameter. You can try things such as subqueries and different kinds of functions.
+
+In the following example we have a Catalog of products where each catalog knows the net worth of its products.
 
 ::
 
@@ -294,7 +297,6 @@ Average movie rating
 TODO
 ----
 
-* Support calculation of many-to-many aggregates
 * Special consideration should be given to `deadlocks`_.