ADVERTISEMENT
Google AdSense Slot (headerLeaderboard)
Set your Publisher ID in src/config/ads.ts to display live ads.
MongoDB NoSQL Database Tutorial• 6 min read
Indexes & Query Performance Profiling
Create compound indexes, multikey array indexes, and profile query execution with explain("executionStats").
The Equality, Sort, Range (ESR) Rule
When constructing compound indexes, follow the ESR rule: place Equality fields first, Sort fields second, and Range filter fields last.
ADVERTISEMENT
Google AdSense Slot (inContentBanner)
Set your Publisher ID in src/config/ads.ts to display live ads.
Test Yourself With Exercise
What does the ESR rule in MongoDB compound indexing stand for?