1 files changed, 10 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
index ffd5055dec..ebf77b9bfb 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
@@ -90,6 +90,8 @@ module ActiveRecord
         end
       end
 
+      attr_reader :prepared_statements
+
       def initialize(connection, logger = nil, pool = nil) #:nodoc:
         super()
 
@@ -103,6 +105,10 @@ module ActiveRecord
         @prepared_statements = false
       end
 
+      def bind_substitution_visitor
+        @bind_sub_visitor ||= visitor.dup.extend(Arel::Visitors::BindVisitor)
+      end
+
       def valid_type?(type)
         true
       end
@@ -318,13 +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)