Oct 25, 2021 · Databases

How PolarDB’s In-Memory Column Index Turns MySQL into a High‑Performance HTAP Engine

This article explores PolarDB MySQL’s In‑Memory Column Index (IMCI) technology, detailing its hybrid row‑column storage architecture, optimizer enhancements, parallel execution engine, and performance gains that enable real‑time analytical queries alongside OLTP workloads, and compares its benchmarks against MySQL and ClickHouse.

Column StoreDatabase OptimizationHTAP

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How PolarDB’s In-Memory Column Index Turns MySQL into a High‑Performance HTAP Engine