[cross-lang object serialization library] The MessagePack Project

http://msgpack.sourceforge.net/ “MessagePack is a binary-based efficient object serialization library. It enables to exchange structured objects between many languages like JSON. But unlike JSON, it is very fast and small.” cpan Data::MessagePack

[RUS ]Массив? Или как лучше? / PostgreSQL : Форум на SQL.RU | Array? or how to do it better? - A way to deal with serializable objects in PostgreSQL

http://sql.ru/forum/actualthread.aspx?tid=676435 this is a discussion from russian database forum SQL.RU that describes 2 common ways of storing serializable objects in RDBMS.