1 files changed, 1 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb
index f93c7cd74a..8cc7c50020 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb
@@ -71,7 +71,7 @@ module ActiveRecord
         when Date, Time then quoted_date(value)
         when Symbol     then value.to_s
         else
-          YAML.dump(value)
+          raise TypeError, "can't cast #{value.class} to #{column.type}"
         end
       end