Exact versus approximate search?
Practice this question- Exact search examines eligible vectors thoroughly; approximate search trades some nearest-neighbor recall for speed and scale.
- I benchmark with realistic filters, corpus sizes, and query patterns rather than assuming ANN is always required.
Adapted from 13_AI.MD · “29.5 Vector databases”. Code examples are study fragments. Difficulty and core labels are editorial estimates; version-specific behavior should be checked against your project.