diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb
index <HASH>..<HASH> 100644
--- a/activerecord/lib/active_record/relation.rb
+++ b/activerecord/lib/active_record/relation.rb
@@ -15,7 +15,7 @@ module ActiveRecord
     # These are explicitly delegated to improve performance (avoids method_missing)
     delegate :to_xml, :to_yaml, :length, :collect, :map, :each, :all?, :include?, :to => :to_a
     delegate :table_name, :quoted_table_name, :primary_key, :quoted_primary_key,
-             :connection, :column_hash, :auto_explain_threshold_in_seconds, :to => :klass
+             :connection, :columns_hash, :auto_explain_threshold_in_seconds, :to => :klass
 
     attr_reader :table, :klass, :loaded
     attr_accessor :extensions, :default_scoped
There isn't a column_hash. It was being invoked by method missing.