Balance faster reads against write amplification, storage cost, and operational complexity in NoSQL indexes.
This section bridges the chapter overview and the detailed lessons below. For Java engineers, the practical question is how to handle read and write trade-offs in indexing in Clojure code at the database boundary.
| Review focus | What to check |
|---|---|
| Read path | Add indexes only for queries that matter. |
| Write path | Account for extra work on inserts and updates. |
| Clojure services | Make high-cost query paths obvious in code review. |
Use the child lessons to move from concept to implementation. The section goal is to make the trade-off visible before the code hardens around a database assumption.