DataFunSummit

Sep 30, 2022 · Big Data

MercsDB: Architecture, Storage, Computation, and Optimization of Tencent's MPP Data Warehouse Engine

The article presents a comprehensive technical overview of MercsDB—formerly HermesDB—including its background, storage and indexing designs, native and Presto computation engines, vectorization optimizations, benchmark results, real‑world applications, and future development plans.