From 309ee57783252e1c1da621df9f6216c73df3c9d6 Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Mon, 1 Feb 2016 18:43:10 -0500
Subject: [PATCH] Column: Only store UDA column objects that instantiate

---
 src/columns/Column.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/columns/Column.cpp b/src/columns/Column.cpp
index 54dec14e0..5dbc00715 100644
--- a/src/columns/Column.cpp
+++ b/src/columns/Column.cpp
@@ -168,7 +168,8 @@ void Column::uda (std::map <std::string, Column*>& all)
       throw format (STRING_UDA_COLLISION, uda);
 
     Column* c = Column::uda (uda);
-    all[c->_name] = c;
+    if (c)
+      all[c->_name] = c;
   }
 }