Sorting a SwiftData Query directly works on device and simulator. However use this in an init

query = Query(filter: predicate, sort: [SortDescriptor(\Foo.bar?.baz])

and the SwiftUI Preview canvas will crash. Previews seem to not have the ability to sort through an Optional chain and produce the correct sql command.

Instead, a post-query, Array-based sort can be used.

init() {
  query = Query(filter: predicate)
}

var body: some View {
  HStack() {
    ForEach(sorted) { qux in
      ...
    }
  }
}

private var sorted: [Foo] {
  query.sorted {
    ($0.bar?.baz ?? "") < ($1.bar?.baz ?? "")
  }
}

env • Xcode 26.5 • Swift 6.3 • iOS 26.5

Sorting a SwiftData Query directly works on device and simulator. However use this in an init

query = Query(filter: predicate, sort: [SortDescriptor(\Foo.bar?.baz])

and the SwiftUI Preview canvas will crash. Previews seem to not have the ability to sort through an Optional chain and produce the correct sql command.

Instead, a post-query, Array-based sort can be used.

init() {
  query = Query(filter: predicate)
}

var body: some View {
  HStack() {
    ForEach(sorted) { qux in
      ...
    }
  }
}

private var sorted: [Foo] {
  query.sorted {
    ($0.bar?.baz ?? "") < ($1.bar?.baz ?? "")
  }
}

env • Xcode 26.5 • Swift 6.3 • iOS 26.5

Sorting a SwiftData Query directly works on device and simulator. However use this in an init

query = Query(filter: predicate, sort: [SortDescriptor(\Foo.bar?.baz])

and the SwiftUI Preview canvas will crash. Previews seem to not have the ability to sort through an Optional chain and produce the correct sql command.

Instead, a post-query, Array-based sort can be used.

init() {
  query = Query(filter: predicate)
}

var body: some View {
  HStack() {
    ForEach(sorted) { qux in
      ...
    }
  }
}

private var sorted: [Foo] {
  query.sorted {
    ($0.bar?.baz ?? "") < ($1.bar?.baz ?? "")
  }
}

env • Xcode 26.5 • Swift 6.3 • iOS 26.5