In the example given on PetaPoco\'s web site, this is how to decorate a class:
[PetaPoco.TableName(\"articles\")] [PetaPoco.PrimaryKey(\"article_id\")] publi
This currently only works in my branch, but you can do this.
[PetaPoco.PrimaryKey("article_id,title")]
My branch can be found here. https://github.com/schotime/PetaPoco