Optimizing for performance and cost
Switching gears one last time, let's orient ourselves to optimizing our use of Athena. Again, remember that what is optimal differs depending on what your greater concerns are; either reducing your overall dollar costs or having the fastest possible experience, that's going to depend on your priorities. By the end of this section, you'll have a good starting point for achieving them.
Workload isolation
In Chapter 3, Key Features, Query Types, and Functions, we covered workgroups and how to leverage them to isolate workloads. Just to reiterate, workgroups allow you to splice up your Athena usage in such a way that you can specify who gets access to which data and how much of that data they can access through the WorkGroup resource and resource policies. Another huge benefit of workgroups is that you can visualize aggregated query metrics at the workgroup level. The way you can do this is when you create a workgroup, you make sure...
