David Justen
David Justen
Doctoral Researcher
David Justen is a PhD candidate at the BIFOLD Graduate School at Technische Universität Berlin, supervised by Prof. Matthias Boehm. Prior to this, he was a PhD student at Prof. Hasso Plattner’s Enterprise Platform and Integration Concepts (EPIC) chair at the Hasso Plattner Institute in Potsdam, where SAP funded his research.
- Query Optimization
- Adaptive Query Processing
- Cloud-based Data Processing
David Justen, Matthias Boehm
Join Cardinality Estimation with OmniSketches
Thomas Bodner, Theo Radig, David Justen, Daniel Ritter, Tilmann Rabl
An Empirical Evaluation of Serverless Cloud Infrastructure for Large-Scale Data Processing
David Justen, Daniel Ritter, Campbell Fraser, Andrew Lamb, Nga Tran, Allison Lee, Thomas Bodner, Mhd Yamen Haddad, Steffen Zeuch, Volker Markl, Matthias Böhm
POLAR: Adaptive and Non-invasive Join Order Selection via Plans of Least Resistance
“POLAR” lowers the adoption barrier for adaptive query processing in database systems
A preprint by BIFOLD researchers titled "POLAR: Adaptive and Non-invasive Join Order Selection via Plans of Least Resistance" is set to be presented at the VLDB conference in 2024. The database engineering paper introduces a technique for reordering joins that is adaptive, with a focus on non-invasive integration and low overhead.