1 files changed, 3 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index b12bac2737..cb9cfa1012 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -608,10 +608,10 @@ module ActiveRecord
       end
 
       def case_sensitive_comparison(table, attribute, column, value)
-        if value.nil? || column.case_sensitive?
-          super
-        else
+        if !value.nil? && column.collation && !column.case_sensitive?
           table[attribute].eq(Arel::Nodes::Bin.new(Arel::Nodes::BindParam.new))
+        else
+          super
         end
       end