From 9890b35ae248306af073b0066c49b0a9572bdc24 Mon Sep 17 00:00:00 2001
From: James Brown <jbrown@uber.com>
Date: Mon, 27 Apr 2015 12:15:04 -0700
Subject: [PATCH] allow using "exists" with direct attributes

---
 clusto_query/query/operator/affix.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/clusto_query/query/operator/affix.py b/clusto_query/query/operator/affix.py
index 7042dbf..67f0203 100644
--- a/clusto_query/query/operator/affix.py
+++ b/clusto_query/query/operator/affix.py
@@ -49,8 +49,11 @@ class ExistsOperator(SuffixOperator):
     operator = ('exists',)
 
     def _exists(self, host, context):
-        prop = _extract_property(host, self.lhs, context)
-        return bool(prop)
+        try:
+            prop = _extract_property(host, self.lhs, context)
+            return bool(prop)
+        except AttributeError:
+            return False
 
     def run(self, candidate_hosts, context):
         hosts = set()