--- a/plugins/mod_storage_sql2.lua	Mon Jul 06 19:11:39 2015 +0100
+++ b/plugins/mod_storage_sql2.lua	Tue Jul 07 17:39:56 2015 +0100
@@ -13,8 +13,8 @@
 local noop = function() end
 local unpack = unpack
 local function iterator(result)
-	return function(result)
-		local row = result();
+	return function(result_)
+		local row = result_();
 		if row ~= nil then
 			return unpack(row);
 		end