what's the best stock AppKit or SwiftUI native object to show a tabluar view that's backed by a database with 1,000,000 rows in it?

For displaying a tabular view backed by a database with 1,000,000 rows, SwiftUI's Table view is a highly suitable option. SwiftUI provides a declarative approach to building user interfaces, and the Table view is designed to handle large datasets efficiently.

In the session SwiftUI essentials, it is mentioned that SwiftUI can interoperate with other frameworks, including Swift Data, which enables you to add persistent models to your app quickly and comes with APIs to connect and query those models from your SwiftUI views. This makes it easier to manage and display large datasets.

Additionally, in the session What’s new in SwiftUI, there is a mention of TableColumnForEach, which can be used to create flexible and customizable table columns, making it easier to handle and display large amounts of data in a tabular format.

Here are the relevant sessions:

SwiftUI essentials
What’s new in SwiftUI

By leveraging these capabilities, you can efficiently display and manage a large dataset in a SwiftUI-based application.