wrap the literal value before handing it to arel

this lets arel know how to correctly quote the value

2 files changed, 6 insertions, 4 deletions

diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
index 78e0cc3d1b..ebf77b9bfb 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
@@ -324,13 +324,14 @@ module ActiveRecord
       def release_savepoint(name = nil)
       end
 
-      def case_sensitive_modifier(node)
+      def case_sensitive_modifier(node, table_attribute)
         node
       end
 
       def case_sensitive_comparison(table, attribute, column, value)
-        value = case_sensitive_modifier(value) unless value.nil?
-        table[attribute].eq(value)
+        table_attr = table[attribute]
+        value = case_sensitive_modifier(value, table_attr) unless value.nil?
+        table_attr.eq(value)
       end
 
       def case_insensitive_comparison(table, attribute, column, value)
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 20eea208ec..7c8f020065 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -610,7 +610,8 @@ module ActiveRecord
         pk_and_sequence && pk_and_sequence.first
       end
 
-      def case_sensitive_modifier(node)
+      def case_sensitive_modifier(node, table_attribute)
+        node = Arel::Nodes.build_quoted node, table_attribute
         Arel::Nodes::Bin.new(node)
       end