Viktor Leis

According to our database, Viktor Leis authored at least 99 papers between 2012 and 2025.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2025

Still Asking: How Good Are Query Optimizers, Really?

Viktor Leis, Andrey Gubichev, Atanas Mirchev, Peter Boncz, Alfons Kemper, Thomas Neumann

Proc. VLDB Endow., August, 2025

Beyond Incrementalism: How to Change the World Through Data Systems Research (VLDB 2025 Panel).

Viktor Leis

Proc. VLDB Endow., August, 2025

Oltp in the cloud: architectures, tradeoffs, and cost.

Michael Haubenschild, Viktor Leis

VLDB J., July, 2025

SQLStorm: Taking Database Benchmarking into the LLM Era.

Tobias Schmidt, Viktor Leis, Peter Boncz, Thomas Neumann

Proc. VLDB Endow., July, 2025

SSD-iq: Uncovering the Hidden Side of SSD Performance.

Gabriel Haas, Bohyun Lee, Philippe Bonnet, Viktor Leis

Proc. VLDB Endow., July, 2025

AnyBlox: A Framework for Self-Decoding Datasets.

Mateusz Gienieczko, Maximilian Kuschewski, Thomas Neumann, Viktor Leis, Jana Giceva

Proc. VLDB Endow., July, 2025

Moving on From Group Commit: Autonomous Commit Enables High Throughput and Low Latency on NVMe SSDs.

Lam-Duy Nguyen, Adnan Alhomssi, Tobias Ziegler, Viktor Leis

Proc. ACM Manag. Data, June, 2025

Synchronizing Disaggregated Data Structures with One-Sided RDMA: Pitfalls, Experiments and Design Guidelines.

Matthias Jasny, Tobias Ziegler, Jacob Nelson-Slivon, Viktor Leis, Carsten Binnig

ACM Trans. Database Syst., March, 2025

Practical DB-OS Co-Design with Privileged Kernel Bypass.

Xinjing Zhou, Viktor Leis, Jinming Hu, Xiangyao Yu, Michael Stonebraker

Proc. ACM Manag. Data, February, 2025

B-Trees Are Back: Engineering Fast and Pageable Node Layouts.

Marcus Müller, Lawrence Benson, Viktor Leis

Proc. ACM Manag. Data, February, 2025

2024

High-Performance Query Processing with NVMe Arrays: Spilling without Killing Performance.

Maximilian Kuschewski, Jana Giceva, Thomas Neumann, Viktor Leis

Proc. ACM Manag. Data, December, 2024

LeanStore: A High-Performance Storage Engine for NVMe SSDs.

Viktor Leis

Proc. VLDB Endow., August, 2024

Two Birds With One Stone: Designing a Hybrid Cloud Storage Engine for HTAP.

Tobias Schmidt, Dominik Durner, Viktor Leis, Thomas Neumann

Proc. VLDB Endow., July, 2024

Cloud-Native Database Systems and Unikernels: Reimagining OS Abstractions for Modern Hardware.

Viktor Leis, Christian Dietrich

Proc. VLDB Endow., April, 2024

Incremental Fusion: Unifying Compiled and Vectorized Query Execution.

Benjamin Wagner, André Kohn, Peter Boncz, Viktor Leis

Proceedings of the 40th IEEE International Conference on Data Engineering, 2024

Why Files If You Have a DBMS?

Lam-Duy Nguyen, Viktor Leis

Proceedings of the 40th IEEE International Conference on Data Engineering, 2024

A Critique of Modern SQL and a Proposal Towards a Simple and Expressive Query Language.

Thomas Neumann, Viktor Leis

Proceedings of the 14th Conference on Innovative Data Systems Research, 2024

2023

Write-Aware Timestamp Tracking: Effective and Efficient Page Replacement for Modern Hardware.

Demian E. Vöhringer, Viktor Leis

Proc. VLDB Endow., 2023

Cloud Analytics Benchmark.

Alexander van Renen, Viktor Leis

Proc. VLDB Endow., 2023

What Modern NVMe Storage Can Do, And How To Exploit It: High-Performance I/O for High-Performance Storage Engines.

Gabriel Haas, Viktor Leis

Proc. VLDB Endow., 2023

Exploiting Cloud Object Storage for High-Performance Analytics.

Dominik Durner, Viktor Leis, Thomas Neumann

Proc. VLDB Endow., 2023

Scalable and Robust Snapshot Isolation for High-Performance Storage Engines.

Adnan Alhomssi, Viktor Leis

Proc. VLDB Endow., 2023

Virtual-Memory Assisted Buffer Management.

Viktor Leis, Adnan Alhomssi, Tobias Ziegler, Yannick Loeck, Christian Dietrich

Proc. ACM Manag. Data, 2023

BtrBlocks: Efficient Columnar Compression for Data Lakes.

Maximilian Kuschewski, David Sauerwein, Adnan Alhomssi, Viktor Leis

Proc. ACM Manag. Data, 2023

Efficient and Portable Einstein Summation in SQL.

Mark Blacher, Julien Klaus, Christoph Staudt, Sören Laue, Viktor Leis, Joachim Giesen

Proc. ACM Manag. Data, 2023

Design Guidelines for Correct, Efficient, and Scalable Synchronization using One-Sided RDMA.

Tobias Ziegler, Jacob Nelson-Slivon, Viktor Leis, Carsten Binnig

Proc. ACM Manag. Data, 2023

Lock-Free Buffer Managers Do Not Require Delayed Memory Reclamation.

Michael Haubenschild, Viktor Leis

Proceedings of the 1st Workshop on Simplicity in Management of Data, 2023

SPA: Economical and Workload-Driven Indexing for Data Analytics in the Cloud.

Peter Boncz, Yannis Chronis, Jan Finis, Stefan Halfpap, Viktor Leis, Thomas Neumann, Anisoara Nica, Caetano Sauer, Knut Stolze, Marcin Zukowski

Proceedings of the 39th IEEE International Conference on Data Engineering, 2023

Is Scalable OLTP in the Cloud a Solved Problem?

Tobias Ziegler, Philip A. Bernstein, Viktor Leis, Carsten Binnig

Proceedings of the 13th Conference on Innovative Data Systems Research, 2023

The Evolution of LeanStore.

Adnan Alhomssi, Michael Haubenschild, Viktor Leis

Proceedings of the Datenbanksysteme für Business, 2023

2022

Height Optimized Tries.

Robert Binna, Eva Zangerle, Martin Pichl, Günther Specht, Viktor Leis

ACM Trans. Database Syst., 2022

B²-Tree: Page-Based String Indexing in Concurrent Environments.

Josef Schmeißer, Maximilian E. Schüle, Viktor Leis, Thomas Neumann, Alfons Kemper

Datenbank-Spektrum, 2022

Efficient Evaluation of Arbitrarily-Framed Holistic SQL Aggregates and Window Functions.

Adrian Vogelsgesang, Thomas Neumann, Viktor Leis, Alfons Kemper

Proceedings of the SIGMOD '22: International Conference on Management of Data, Philadelphia, PA, USA, June 12, 2022

ScaleStore: A Fast and Cost-Efficient Storage Engine using DRAM, NVMe, and RDMA.

Tobias Ziegler, Carsten Binnig, Viktor Leis

Proceedings of the SIGMOD '22: International Conference on Management of Data, Philadelphia, PA, USA, June 12, 2022

GI Startup Platform - Community Get Together.

Wolfram Wingerath, Viktor Leis, Felix Gessert

Proceedings of the 52. Jahrestagung der Gesellschaft für Informatik, INFORMATIK 2022, Informatik in den Naturwissenschaften, 26., 2022

EFA: A Viable Alternative to RDMA over InfiniBand for DBMSs?

Tobias Ziegler, Dwarakanandan Bindiganavile Mohan, Viktor Leis, Carsten Binnig

Proceedings of the International Conference on Management of Data, 2022

Are You Sure You Want to Use MMAP in Your Database Management System?

Andrew Crotty, Viktor Leis, Andrew Pavlo

Proceedings of the 12th Conference on Innovative Data Systems Research, 2022

Machine Learning, Linear Algebra, and More: Is SQL All You Need?

Mark Blacher, Joachim Giesen, Sören Laue, Julien Klaus, Viktor Leis

Proceedings of the 12th Conference on Innovative Data Systems Research, 2022

2021

Tidy Tuples and Flying Start: fast compilation and fast execution of relational queries in Umbra.

Timo Kersten, Viktor Leis, Thomas Neumann

VLDB J., 2021

Making Compiling Query Engines Practical.

André Kohn, Viktor Leis, Thomas Neumann

IEEE Trans. Knowl. Data Eng., 2021

Optimistically Compressed Hash Tables & Strings in theUSSR.

Tim Gubner, Viktor Leis, Peter Boncz

SIGMOD Rec., 2021

Towards Cost-Optimal Query Processing in the Cloud.

Viktor Leis, Maximilian Kuschewski

Proc. VLDB Endow., 2021

Data Structures for Modern Memory and Storage Hierarchies (Dagstuhl Seminar 21283).

Stratos Idreos, Viktor Leis, Kai-Uwe Sattler, Margo I. Seltzer

Dagstuhl Reports, 2021

Succinct range filters.

Huanchen Zhang, Hyeontaek Lim, Viktor Leis, David G. Andersen, Michael Kaminsky, Kimberly Keeton, Andrew Pavlo

Commun. ACM, 2021

Building Advanced SQL Analytics From Low-Level Plan Operators.

André Kohn, Viktor Leis, Thomas Neumann

Proceedings of the SIGMOD '21: International Conference on Management of Data, 2021

JSON Tiles: Fast Analytics on Semi-Structured Data.

Dominik Durner, Viktor Leis, Thomas Neumann

Proceedings of the SIGMOD '21: International Conference on Management of Data, 2021

White-Box OLAP Performance Modeling for the Cloud.

Maximilian Kuschewski, Viktor Leis

Proceedings of the 11th Conference on Innovative Data Systems Research, 2021

Contention and Space Management in B-Trees.

Adnan Alhomssi, Viktor Leis

Proceedings of the 11th Conference on Innovative Data Systems Research, 2021

B²-Tree: Cache-Friendly String Indexing within B-Trees.

Josef Schmeißer, Maximilian E. Schüle, Viktor Leis, Thomas Neumann, Alfons Kemper

Proceedings of the Datenbanksysteme für Business, 2021

2020

Building blocks for persistent memory.

Alexander van Renen, Lukas Vogel, Viktor Leis, Thomas Neumann, Alfons Kemper

VLDB J., 2020

FSST: Fast Random Access String Compression.

Peter Boncz, Thomas Neumann, Viktor Leis

Proc. VLDB Endow., 2020

Mosaic: A Budget-Conscious Storage Engine for Relational Database Systems.

Lukas Vogel, Alexander van Renen, Satoshi Imamura, Viktor Leis, Thomas Neumann, Alfons Kemper

Proc. VLDB Endow., 2020

RDMA Communciation Patterns.

Tobias Ziegler, Viktor Leis, Carsten Binnig

Datenbank-Spektrum, 2020

Tree-Encoded Bitmaps.

Harald Lang, Alexander Beischl, Viktor Leis, Peter Boncz, Thomas Neumann, Alfons Kemper

Proceedings of the 2020 International Conference on Management of Data, 2020

Rethinking Logging, Checkpoints, and Recovery for High-Performance Storage Engines.

Michael Haubenschild, Caetano Sauer, Thomas Neumann, Viktor Leis

Proceedings of the 2020 International Conference on Management of Data, 2020

Efficient Query Processing with Optimistically Compressed Hash Tables & Strings in the USSR.

Tim Gubner, Viktor Leis, Peter Boncz

Proceedings of the 36th IEEE International Conference on Data Engineering, 2020

Low-Latency Communication for Fast DBMS Using RDMA and Shared Memory.

Philipp Fent, Alexander van Renen, Andreas Kipf, Viktor Leis, Thomas Neumann, Alfons Kemper

Proceedings of the 36th IEEE International Conference on Data Engineering, 2020

Scalable and robust latches for database systems.

Jan Böttcher, Viktor Leis, Jana Giceva, Thomas Neumann, Alfons Kemper

Proceedings of the 16th International Workshop on Data Management on New Hardware, 2020

Exploiting Directly-Attached NVMe Arrays in DBMS.

Gabriel Haas, Michael Haubenschild, Viktor Leis

Proceedings of the 10th Conference on Innovative Data Systems Research, 2020

2019

Succinct Range Filters.

Huanchen Zhang, Hyeontaek Lim, Viktor Leis, David G. Andersen, Kimberly Keeton, Andrew Pavlo

SIGMOD Rec., 2019

Scalable Garbage Collection for In-Memory MVCC Systems.

Jan Böttcher, Viktor Leis, Thomas Neumann, Alfons Kemper

Proc. VLDB Endow., 2019

Optimistic Lock Coupling: A Scalable and Efficient General-Purpose Synchronization Method.

Viktor Leis, Michael Haubenschild, Thomas Neumann

IEEE Data Eng. Bull., 2019

Letter from the Rising Star Award Winner.

Viktor Leis

IEEE Data Eng. Bull., 2019

Estimating Cardinalities with Deep Sketches.

Andreas Kipf, Dimitri Vorona, Jonas Müller, Thomas Kipf, Bernhard Radke, Viktor Leis, Peter Boncz, Thomas Neumann, Alfons Kemper

Proceedings of the 2019 International Conference on Management of Data, 2019

Persistent Memory I/O Primitives.

Alexander van Renen, Lukas Vogel, Viktor Leis, Thomas Neumann, Alfons Kemper

Proceedings of the 15th International Workshop on Data Management on New Hardware, 2019

On the Impact of Memory Allocation on High-Performance Query Processing.

Dominik Durner, Viktor Leis, Thomas Neumann

Proceedings of the 15th International Workshop on Data Management on New Hardware, 2019

Learned Cardinalities: Estimating Correlated Joins with Deep Learning.

Andreas Kipf, Thomas Kipf, Bernhard Radke, Viktor Leis, Peter Boncz, Alfons Kemper

Proceedings of the 9th Biennial Conference on Innovative Data Systems Research, 2019

Domain Query Optimization: Adapting the General-Purpose Database System Hyper for Tableau Workloads.

Adrian Vogelsgesang, Tobias Mühlbauer, Viktor Leis, Thomas Neumann, Alfons Kemper

Proceedings of the Datenbanksysteme für Business, 2019

Experimental Study of Memory Allocation for High-Performance Query Processing.

Dominik Durner, Viktor Leis, Thomas Neumann

Proceedings of the 10th International Workshop on Accelerating Analytics and Data Management Systems Using Modern Processor and Storage Architectures, 2019

2018

Query optimization through the looking glass, and what we found running the Join Order Benchmark.

Viktor Leis, Bernhard Radke, Andrey Gubichev, Atanas Mirchev, Peter Boncz, Alfons Kemper, Thomas Neumann

VLDB J., 2018

Everything You Always Wanted to Know About Compiled and Vectorized Queries But Were Afraid to Ask.

Timo Kersten, Viktor Leis, Alfons Kemper, Thomas Neumann, Andrew Pavlo, Peter Boncz

Proc. VLDB Endow., 2018

Data Management on Non-Volatile Memory: A Perspective.

Philipp Götze, Alexander van Renen, Lucas Lersch, Viktor Leis, Ismail Oukid

Datenbank-Spektrum, 2018

SuRF: Practical Range Query Filtering with Fast Succinct Tries.

Huanchen Zhang, Hyeontaek Lim, Viktor Leis, David G. Andersen, Michael Kaminsky, Kimberly Keeton, Andrew Pavlo

Proceedings of the 2018 International Conference on Management of Data, 2018

Building a Bw-Tree Takes More Than Just Buzz Words.

Ziqi Wang, Andrew Pavlo, Hyeontaek Lim, Viktor Leis, Huanchen Zhang, Michael Kaminsky, David G. Andersen

Proceedings of the 2018 International Conference on Management of Data, 2018

Get Real: How Benchmarks Fail to Represent the Real World.

Adrian Vogelsgesang, Michael Haubenschild, Jan Finis, Alfons Kemper, Viktor Leis, Tobias Mühlbauer, Thomas Neumann, Manuel Then

Proceedings of the 7th International Workshop on Testing Database Systems, 2018

Managing Non-Volatile Memory in Database Systems.

Alexander van Renen, Viktor Leis, Alfons Kemper, Thomas Neumann, Takushi Hashida, Kazuichi Oe, Yoshiyasu Doi, Lilian Harada, Mitsuru Sato

Proceedings of the 2018 International Conference on Management of Data, 2018

HOT: A Height Optimized Trie Index for Main-Memory Database Systems.

Robert Binna, Eva Zangerle, Martin Pichl, Günther Specht, Viktor Leis

Proceedings of the 2018 International Conference on Management of Data, 2018

LeanStore: In-Memory Data Management beyond Main Memory.

Viktor Leis, Michael Haubenschild, Alfons Kemper, Thomas Neumann

Proceedings of the 34th IEEE International Conference on Data Engineering, 2018

Adaptive Execution of Compiled Queries.

André Kohn, Viktor Leis, Thomas Neumann

Proceedings of the 34th IEEE International Conference on Data Engineering, 2018

2017

Monopedia: Staying Single is Good Enough - The HyPer Way for Web Scale Applications.

Maximilian E. Schüle, Pascal Schliski, Thomas Hutzelmann, Tobias Rosenberger, Viktor Leis, Dimitri Vorona, Alfons Kemper, Thomas Neumann

Proc. VLDB Endow., 2017

Die Evolution des Hauptspeicherdatenbanksystems HyPer - Von Transaktionen und Analytik zu Big Data sowie von der Forschung zum Technologietransfer.

Alfons Kemper, Viktor Leis, Thomas Neumann

Inform. Spektrum, 2017

Cardinality Estimation Done Right: Index-Based Join Sampling.

Viktor Leis, Bernhard Radke, Andrey Gubichev, Alfons Kemper, Thomas Neumann

Proceedings of the 8th Biennial Conference on Innovative Data Systems Research, 2017

Query Processing and Optimization in Modern Database Systems.

Viktor Leis

Proceedings of the Datenbanksysteme für Business, 2017

The Complete Story of Joins (in HyPer).

Thomas Neumann, Viktor Leis, Alfons Kemper

Proceedings of the Datenbanksysteme für Business, 2017

Die Evolution des Hauptspeicher-Datenbanksystems HyPer: Von Transaktionen und Analytik zu Big Data sowie von der Forschung zum Technologietransfer.

Alfons Kemper, Viktor Leis, Thomas Neumann

Proceedings of the 50 Jahre Universitäts-Informatik in München, 2017

2016

Query Processing and Optimization in Modern Database Systems.

Viktor Leis

PhD thesis, 2016

Scaling HTM-Supported Database Transactions to Many Cores.

Viktor Leis, Alfons Kemper, Thomas Neumann

IEEE Trans. Knowl. Data Eng., 2016

The ART of practical synchronization.

Viktor Leis, Florian Scheibner, Alfons Kemper, Thomas Neumann

Proceedings of the 12th International Workshop on Data Management on New Hardware, 2016

2015

Efficient Processing of Window Functions in Analytical SQL Queries.

Viktor Leis, Kan Kundhikanjana, Alfons Kemper, Thomas Neumann

Proc. VLDB Endow., 2015

How Good Are Query Optimizers, Really?

Viktor Leis, Andrey Gubichev, Atanas Mirchev, Peter Boncz, Alfons Kemper, Thomas Neumann

Proc. VLDB Endow., 2015

2014

Compiling Database Queries into Machine Code.

Thomas Neumann, Viktor Leis

IEEE Data Eng. Bull., 2014

HyPer Beyond Software: Exploiting Modern Hardware for Main-Memory Database Systems.

Florian Funke, Alfons Kemper, Tobias Mühlbauer, Thomas Neumann, Viktor Leis

Datenbank-Spektrum, 2014

Morsel-driven parallelism: a NUMA-aware query evaluation framework for the many-core age.

Viktor Leis, Peter Boncz, Alfons Kemper, Thomas Neumann

Proceedings of the International Conference on Management of Data, 2014

Exploiting hardware transactional memory in main-memory databases.

Viktor Leis, Alfons Kemper, Thomas Neumann

Proceedings of the IEEE 30th International Conference on Data Engineering, Chicago, 2014

2013

Processing in the Hybrid OLTP & OLAP Main-Memory Database System HyPer.

Alfons Kemper, Thomas Neumann, Jan Finis, Florian Funke, Viktor Leis, Henrik Mühe, Tobias Mühlbauer, Wolf Rödiger

IEEE Data Eng. Bull., 2013

Massively Parallel NUMA-aware Hash Joins.

Harald Lang, Viktor Leis, Martina-Cezara Albutiu, Thomas Neumann, Alfons Kemper

Proceedings of the 1st International Workshop on In Memory Data Management and Analytics, 2013

The adaptive radix tree: ARTful indexing for main-memory databases.

Viktor Leis, Alfons Kemper, Thomas Neumann

Proceedings of the 29th IEEE International Conference on Data Engineering, 2013

2012

HyPer: Adapting Columnar Main-Memory Data Management for Transactional AND Query Processing.

Alfons Kemper, Thomas Neumann, Florian Funke, Viktor Leis, Henrik Mühe

IEEE Data Eng. Bull., 2012

Effective and Robust Pruning for Top-Down Join Enumeration Algorithms.

Pit Fender, Guido Moerkotte, Thomas Neumann, Viktor Leis

Proceedings of the IEEE 28th International Conference on Data Engineering (ICDE 2012), 2012