From aa81c6a1aba418e2ce7164b38b1fb574bcb6dab2 Mon Sep 17 00:00:00 2001
From: Javier Goizueta <jgoizueta@gmail.com>
Date: Mon, 23 Nov 2015 17:07:24 +0100
Subject: [PATCH] Add comment to CDB_GreatCircle

---
 scripts-available/CDB_GreatCircle.sql | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts-available/CDB_GreatCircle.sql b/scripts-available/CDB_GreatCircle.sql
index 004ae2e..8d98dbf 100644
--- a/scripts-available/CDB_GreatCircle.sql
+++ b/scripts-available/CDB_GreatCircle.sql
@@ -1,3 +1,6 @@
+-- Great circle point-to-point routes, based on:
+--   http://blog.cartodb.com/jets-and-datelines/
+--
 CREATE OR REPLACE FUNCTION CDB_GreatCircle(start_point geometry, end_point geometry)
 RETURNS geometry AS $$
 DECLARE