Tim Fischer
Research Assistant
Universität Tübingen, WSI
Lehrstuhl für Datenbanksysteme
Sand 13
72076 Tübingen
Room B314
+49 7071 29-70503
+49 7071 29-5958
tim.fischer@uni-tuebingen.de
0000-0002-6625-9627
Teaching Assistance
| Winter 2024/25: | Informatik 1 |
| Winter 2024/25: | SQL is a Programming Language |
| Summer 2024: | DB2 |
| Summer 2024: | Selected Fun Problems of the ACM Programming Contest (proseminar) |
| Summer 2024: | Team Project: The Construction of an SASL-Compiler |
| Winter 2023/24: | What Makes the Duck Quack? |
| Summer 2023: | DB1 |
| Summer 2023: | Selected Fun Problems of the ACM Programming Contest (Proseminar) |
| Winter 2022/23: | Info 1 (Praktische Informatik 1: Deklarative Programmierung) |
| Summer 2022: | Teamprojekt: The Construction of an SASL-Compiler |
| Winter 2021/22: | Selected Fun Problems of the ACM Programming Contest (Proseminar) |
| Summer 2021: | Teamprojekt: The Construction of an SASL-Compiler |
| Summer 2020: | Teamprojekt: The Construction of an SASL-Compiler |
Research Supervisor
| 2024: | Fredo Hogen | Bachelor Thesis | How expressive is Flummi really? Can it run Advent of Code? |
| 2024: | Ludwig Kolesch | Bachelor Thesis | Bringing Flummi to WITH MUTUALLY RECURSIVE on Materialize DB |
| 2024: | Markus Holder | Bachelor Thesis | Bringing Flummi to umbra.trampoline |
| 2024: | Nico Faden | Bachelor Thesis | Bringing ORDINALITY to DuckDB |
| 2024: | Felix Kofink | Master Thesis | Database-Backed Computation Over Weather Data |
| 2024: | Xenia Wetzel | Bachelor Thesis | Writing an Interpreter for a Database-Coupled Language |
| 2023: | Zora Pidde | Bachelor Thesis | Extending ByePy with geometric types and operators |
| 2022: | Phil Elgert | Master Thesis | Creating a Website with a Static Site Generator |
Short Biography
- since April 2021: Research Assistant at the Database Systems Chair
- Aug 2017 - Mar 2021: Full-Stack Webdeveloper at mecodia GmbH
- Oct 2016 - Sep 2023: Student of Computer Science at University of Tübingen
Recent Publications
A Reproducible Tutorial on Reproducibility in Database Systems Research
Tim Fischer • Denis Hirn • Gökhan Kul
VLDB 2024, 50th International Conference on Very Large Data Bases (VLDB 2024), August 26, 2024, Guangzhou, China
SQL Engines Excel at the Execution of Imperative Programs
Tim Fischer • Denis Hirn • Torsten Grust
VLDB 2025, 51th International Conference on Very Large Data Bases (VLDB 2025), September 1, 2025, London, United Kingdom (to be published)
To Iterate Is Human, to Recurse Is Divine—Mapping Iterative Python to Recursive SQL
Datenbanksysteme für Business, Technologie und Web (BTW 2023), Student Program, Dresden, Germany, March 2023. Best Student Contribution doi:10.18420/BTW2023-73
BibTeX Citation
@incollection{10.18420/BTW2023-73,
author = {Fischer, Tim},
title = {To Iterate Is Human, to Recurse Is Divine --- Mapping Iterative Python to Recursive SQL},
year = {2023},
doi = {10.18420/BTW2023-73},
booktitle = {BTW 2023},
publisher = {Gesellschaft für Informatik e.V.},
address = {Bonn},
isbn = {978-3-88579-725-8},
pages = {1069--1074}
}
Snakes on a Plan — Compiling Python Functions into Plain SQL Queries
Denis Hirn • Torsten Grust • Tim Fischer
Proceedings of the 41st ACM SIGMOD Int’l Conference on Management of Data (SIGMOD 2022), Philadelphia, PA, USA, June 2022. doi:10.1145/3514221.3520175
BibTeX Citation
@inproceedings{snakes-on-a-plan,
author = {Fischer, Tim and Hirn, Denis and Grust, Torsten},
title = {Snakes on a Plan: Compiling Python Functions into Plain SQL Queries},
year = {2022},
isbn = {9781450392495},
publisher = {Association for Computing Machinery},
address = {New York, NY, USA},
url = {https://doi.org/10.1145/3514221.3520175},
doi = {10.1145/3514221.3520175},
booktitle = {Proceedings of the 2022 International Conference on Management of Data},
pages = {2389–2392},
numpages = {4},
keywords = {SQL, compilation, python, recursion, user-defined functions},
location = {Philadelphia, PA, USA},
series = {SIGMOD '22}
}