Indexes

• Learned Indexes: When Models Replace B‑Trees · 2025-10-04

  A practitioner's guide to learned indexes: how they work, when they beat classic data structures, and what it takes to ship them without getting paged.

• Reverse Indexing and Inverted Files: How Search Engines Fly · 2023-07-19

  Tokenization, postings lists, skip pointers, and WAND: a tour of the data structures that make full‑text search fast.