so i have a bit of a wierd question i have two tables 

items

 and 

item_versions

  (*note: sql server)

create table items {
  id int IDENTITY(1,1) constraint items_pkey primary key,
  version int not null
}

create table item_versions {
 id int IDENTITY(1,1) constraint item_versions_pkey primary key,
 item_id int not null,
 version int not null,
 name nvarchar(15) not null
}

so in the above example i have a 1:* items -> item_versions but I also want to model 1:1 item_versions -> items, how would i model that in my prisma schema? and what keys would i need to define on the tables to have prisma be able to query that relationship?