From 16868b53f9533ba48ca33bb694fade390f0ffe7e Mon Sep 17 00:00:00 2001
From: Yves Senn <yves.senn@gmail.com>
Date: Tue, 9 Sep 2014 19:16:26 +0200
Subject: A `NullRelation` should represent nothing. Closes #15176.

[Matthew Draper & Yves Senn]

Closes #16860. (pull request to discuss the implementation)
---
 activerecord/test/cases/relation/mutation_test.rb | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'activerecord/test/cases/relation/mutation_test.rb')

diff --git a/activerecord/test/cases/relation/mutation_test.rb b/activerecord/test/cases/relation/mutation_test.rb
index 1da5c36e1c..4c94c2fd0d 100644
--- a/activerecord/test/cases/relation/mutation_test.rb
+++ b/activerecord/test/cases/relation/mutation_test.rb
@@ -18,6 +18,10 @@ module ActiveRecord
       def attribute_alias?(name)
         false
       end
+
+      def sanitize_sql(sql)
+        sql
+      end
     end
 
     def relation
-- 
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