{
"title":"The Avengers",
"year": 2012,
"cast" : ["Mark Ruffalo", "Robert Downey, Jr."],
"genres" : ["Action"]
}
- The primary key should be a partition key of the title field.
- The primary key should be the title field and the partition key should be the genres field.
- The primary key should be a composite key comprised of a partition key on the title field and a sort key on the year field.
- The primary key should be created as a completely unique value, such a sequential numerical list of movie IDs. The partition key should be title field for fast lookup.