How does this validate data with a variable amount of keys with the same value type for example a to-do list my day to day to do list varies in the number of t

How does this validate data with a variable amount of keys with the same value type for example a to-do list my day to day to do list varies in the number of tasks, but the completion will always be in boolean [ { "task": "do Foo", "completed": False, }, { "task": "do Bar", "completed": False, }, { "task": "do Baz", "completed": False, }, ... ] Also, what is the issue of schema validation before inserting into the json column, as this is what I'm doing with a small microservice with Redis.