From 31830af6355557ec159d2173b12ad1437f49b447 Mon Sep 17 00:00:00 2001
From: Victor Uriarte <victor.m.uriarte@intel.com>
Date: Mon, 22 Aug 2016 19:55:37 -0700
Subject: Fix #284 as grouping

---
 sqlparse/engine/grouping.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'sqlparse/engine')

diff --git a/sqlparse/engine/grouping.py b/sqlparse/engine/grouping.py
index 42305c3..7cbcc6b 100644
--- a/sqlparse/engine/grouping.py
+++ b/sqlparse/engine/grouping.py
@@ -121,7 +121,7 @@ def group_as(tlist):
 
     def valid_next(token):
         ttypes = T.DML, T.DDL
-        return not imt(token, t=ttypes)
+        return not imt(token, t=ttypes) and token is not None
 
     def post(tlist, pidx, tidx, nidx):
         return pidx, nidx
-- 
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