To Include table type in Complex type in Gateway

Hi Experts,

I have created a entity which includes Pernr,first name, last name and country.

I have implemented get entityset method. Now I need to pass multiple values for country for a pernr means A pernr can have multiple values of country.

I thought to create a complex type for country attribute and assign a table type in it, but its not working.

Please Suggest.

Thanks,

Saurabh