Learning on Web Dev Open is free for all.

Framework Internals > Data, forms and the hard partQuery Planner
Phase 04Data, forms and the hard part224 of 434

Query Planner

Cache keys, invalidation blast radius, and the round where you find out that one missing parameter served the wrong user.

Drill22 minAI off

Query Planner

Add the indexes that turn a collection scan into a bounded lookup.

Play Query Planner

You should now be able to

  • Construct a complete cache key at speed
  • Predict what a single invalidation actually clears
Ask the community

Loading…