Why MySQL Chooses B+ Trees: From BSTs to High-Performance Indexes

This article traces the evolution of tree‑based index structures—from simple binary search trees through AVL and red‑black trees to B‑trees and B+‑trees—explaining their strengths and limitations and why MySQL adopts B+‑trees to minimize disk I/O and boost query performance.

B+TreeData StructuresDatabase Performance

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Why MySQL Chooses B+ Trees: From BSTs to High-Performance Indexes