fetchCursor(_:keys:)

For example:

try dbQueue.read { db in
    let players = try Player.fetchCursor(db, keys: [1, 2, 3])
    while let player = try players.next() {
        print(player.name)
    }
}

The order in which the records are returned is undefined (ref).

The returned cursor is valid only during the remaining execution of the database access. Do not store or return the cursor for later use.

If the database is modified during the cursor iteration, the remaining elements are undefined.