Tag: mongodb index

Posts tagged "mongodb index"

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The ESR Rule - How to Build the Perfect Compound Index in MongoDB

Your index exists but queries are still slow? It's usually field order. Learn the ESR rule — Equality, Sort, Range — to build MongoDB compound indexes that actually work.

September 9, 20267 min read

MongoDB Indexes: How to Actually Read and Fix Slow Queries

MongoDB indexes are powerful, but they are not magic. explain tells you the truth — as long as you know where to look. The biggest mistake is seeing IXSCAN and moving on thinking "okay, it is fast." The real story is hidden in those three numbers and in timeReadingMicros.

August 14, 202611 min read