From eba68c56efedb5ac9b7479590fde8577b5d2a205 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simon=20Mart=C3=ADn?= <oleurud@gmail.com>
Date: Thu, 10 May 2018 18:36:08 +0200
Subject: [PATCH] handling pg_typeof undefined

---
 lib/cartodb/models/dataview/base.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/cartodb/models/dataview/base.js b/lib/cartodb/models/dataview/base.js
index 8c1ada5d..80e021b1 100644
--- a/lib/cartodb/models/dataview/base.js
+++ b/lib/cartodb/models/dataview/base.js
@@ -52,6 +52,11 @@ module.exports = class BaseDataview {
             if (err) {
                 return callback(err);
             }
+
+            if (!result || !result.rows || !result.rows.length) {
+                return callback(new Error('The column type could not be determined'));
+            }
+
             const pgType = result.rows[0].pg_typeof;
             callback(null, getPGTypeName(pgType));
         }, readOnlyTransaction);