Add regression test for sort order with aggregate term in orderby with groupby

testing/groupby.test

@@ -326,3 +326,23 @@ sneakers|sneakers|sneakers
 boots|boots|boots
 coat|coat|coat
 accessories|accessories|accessories}
+
+# make sure we return the group by key sorted DESC when the order by has only an aggregate term
+do_execsql_test proper-sort-order {
+	SELECT u.first_name, COUNT(*) AS c
+	FROM users u
+	JOIN products p ON p.id = u.id
+	GROUP BY u.first_name
+	ORDER BY c DESC;
+} {Travis|1
+Tommy|1
+Rachel|1
+Nicholas|1
+Matthew|1
+Jennifer|1
+Jamie|1
+Edward|1
+Daniel|1
+Cindy|1
+Aimee|1}
+