Wolfgang Lehner

Towards scalable real-time analytics

2015 · Proceedings of the VLDB Endowment

We present an overview of our work on the SAP HANA Scale-out Extension, a novel distributed database architecture designed to support large scale analytics over real-time data. This platform permits high performance OLAP with massive …

A database accelerator for energy-efficient query processing and optimization

2016

Data processing on a continuously growing amount of information and the increasing power restrictions have become an ubiquitous challenge in our world today. Besides parallel computing, a promising approach to improve the energy efficiency of …

Configuring Parallelism for Hybrid Layouts Using Multi-Objective Optimization

2020 · Big Data

Modern organizations typically store their data in a raw format in data lakes. These data are then processed and usually stored under hybrid layouts, because they allow projection and selection operations. Thus, they allow (when …