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Talks & Writings

A list of all my presentations, talks, written articles and trainings.

Number entries on this page: 134


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2026

2026-09-04Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at PGConf.Brasil 2026
2026-09-041 PB of data, 136 Billion Rows and how we avoided paying $2730 per day
Talk at PGConf.Brasil 2026
2026-05-20PostgreSQL Commitfest Metrics: A Quantitative Analysis
Talk at PostgreSQL Development Conference 2026
Co-Speaker: Jimmy Angelakos
2026-05-19Meetup planning and efforts
Workshop at PostgreSQL Development Conference 2026
Co-Speaker: Cornelia Biacsics
2026-04-22Closing PGConf.DE 2026
Talk at PGConf.DE 2026
2026-04-22Lightning Talks PGConf.DE 2026 (Moderation)
Talk at PGConf.DE 2026
2026-04-21Opening PGConf.DE 2026
Talk at PGConf.DE 2026
2026-03-30Ansible Filter 101: Wie Filter die Arbeit erleichtern
Talk at Chemnitz Linux Days 2026
2026-03-30Lightning Talks (Moderation)
Lightning Talks at Chemnitz Linux Days 2026
2026-03-13How we made WarehousePG Open Source (again)
Talk at PGConf India 2026
2026-03-05How we made WarehousePG Open Source (again)
Talk at PostgreSQL Berlin Meetup
2026-01-27How we made WarehousePG Open Source (again)
Talk at Open Source Analytics Community

2025

2025-12-11Backups mit Restic und resticprofile
Talk at IT-Tage 2025
Co-Speaker: Rainer Rose
2025-12-10How we made WarehousePG Open Source (again)
Talk at PostgreSQL Meetup in Frankfurt
2025-11-21What I Learned Interviewing the PostgreSQL Community
Talk at PostgreSQL Conference Japan 2025 (PostgreSQL カンファレンス 2025)
2025-10-21Community Summit – PGConf EU Edition
Workshop at PostgreSQL Conference Europe 2025
2025-09-27Backups mit Restic und resticprofile
Talk at GNU/LinuxDay in Vorarlberg 2025
2025-09-20Füge Geokoordinaten zu deinen Adressen in PostgreSQL hinzu
Talk at 23. Kieler Open Source und Linux Tage
2025-09-20Backups mit Restic und resticprofile
Talk at 23. Kieler Open Source und Linux Tage
2025-09-12What I Learned Interviewing the PostgreSQL Community
Talk at PGDay Lowlands 2025
2025-05-13Postgres Community Summit
Workshop at PostgreSQL Development Conference 2025
2025-05-09Closing PGConf.DE 2025
Talk at PGConf.DE 2025
2025-05-09Lightning Talks PGConf.DE 2025 (Moderation)
Talk at PGConf.DE 2025
2025-05-08Opening PGConf.DE 2025
Talk at PGConf.DE 2025
2025-03-23Lightning Talks (Moderation)
Lightning Talks at Chemnitz Linux Days 2025
2025-03-22Backups mit Restic und resticprofile
Talk at Chemnitz Linux Days 2025
Co-Speaker: Rainer Rose

2024

2024-04-23Add Geocoordinates to your addresses in PostgreSQL
Talk at Hamburg PostgreSQL Meetup
2024-04-12Closing PGConf.DE 2024
Talk at PGConf.DE 2024
2024-04-12Opening PGConf.DE 2024
Talk at PGConf.DE 2024
2024-03-17Erfahrungen aus Interviews mit der PostgreSQL-Community
Talk at Chemnitz Linux Days 2024
2024-03-16Füge Geokoordinaten zu deinen Adressen in PostgreSQL hinzu
Talk at Chemnitz Linux Days 2024
Aufzeichnung    

2023

2023-12-14Add Geocoordinates to your addresses in PostgreSQL
Talk at PGConf.EU 2023 in Prague
2023-09-30What I Learned Interviewing the PostgreSQL Community
Talk at GNU/LinuxDay in Vorarlberg 2023
2023-09-15PostgreSQL 16 erweitert die Konfiguration und lernt neue Funktionen
Article in Heise Developer
2023-09-12What I Learned Interviewing the PostgreSQL Community
Talk at PGDay UK 2023
2023-06-27Closing PGConf.DE 2023
Talk at PGConf.DE 2023
2023-06-27Opening PGConf.DE 2023
Talk at PGConf.DE 2023
2023-04-13Advanced Data Types in PostgreSQL
Talk at PGDay/MED 2023
2023-03-12Advanced Ansible Workshop
Workshop at Chemnitz Linux Days 2023
2023-03-11Erweiterte Datentypen in PostgreSQL (Advanced Data Types in PostgreSQL)
Talk at Chemnitz Linux Days 2023
2023-02-05Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at FOSDEM PGDay 2023
2023-01-11What I Learned Interviewing the PostgreSQL Community
Talk at The San Francisco Bay Area PostgreSQL Meetup Group

2022

2022-10-28How not to submit for a PostgreSQL job
Lightning Talk at PGConf.EU 2022
2022-09-23What I Learned Interviewing the PostgreSQL Community
Talk at PGConf NYC 2022
2022-07-01What I Learned Interviewing the PostgreSQL Community
Talk at Swiss PGDay 2022
2022-05-18Advanced Data Types in PostgreSQL
Talk at Percona Live 2022
2022-05-17Managing PostgreSQL with Ansible
Talk at Percona Live 2022
2022-05-13Closing PGConf.DE 2022
Talk at PGConf.DE 2022
2022-04-20What I Learned Interviewing the PostgreSQL Community
Talk at PgBE PostgreSQL Users Group Belgium
2022-04-12What I Learned Interviewing the PostgreSQL Community
Talk at Citus Con 2022

2021

2021-12-02Advanced Data Types in PostgreSQL
Talk at PGConf NYC 2021
2021-01-26Managing PostgreSQL with Ansible
Talk at The San Francisco Bay Area PostgreSQL Meetup Group

2020

2020-12-08Managing PostgreSQL with Ansible
Talk at Postgres Build 2020
2020-06-24Managing PostgreSQL with Ansible
Talk at Postgres Vision 2020
2020-03-06Tour de Data Types
Workshop at SCaLE 18x
Exercises    
2020-01-21Advanced Data Types in PostgreSQL
Talk at PgDay San Francisco 2020

2019

2019-11-14Hello Greenplum
Talk at Tecnogest 2019 / PgCuba 2019
2019-11-14Tour of Data Types: VARCHAR2 or CHAR(255)
Talk at Tecnogest 2019 / PgCuba 2019
2019-09-12Advanced Data Types in PostgreSQL
Talk at PostgresOpen 2019
2019-08-02Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at PGConf.Brasil 2019
2019-05-10Closing PGConf.DE 2019
Talk at PGConf.DE 2019
2019-05-10Opening PGConf.DE 2019
Talk at PGConf.DE 2019
2019-03-26Tour de (PostgreSQL) Data Types
Talk at Dresden PostgreSQL Meetup
2019-03-25Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at Prague PostgreSQL Meetup
2019-03-17Server mit Ansible verwalten
Workshop at Chemnitz Linux Days 2019
2019-03-14Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at pgDay Israel 2019

2018

2018-10-24Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at PGConf.EU 2018
2018-04-19Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at PGDay.Amsterdam 2018
2018-04-19Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at Greenplum Summit / pgconf.us 2018
2018-04-13Closing PGConf.DE 2018
Talk at PGConf.DE 2018
2018-04-13Opening PGConf.DE 2018
Talk at PGConf.DE 2018
2018-03-11Server mit Ansible verwalten
Workshop at Chemnitz Linux Days 2018

2017

2017-12-07Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at Warsaw PostgreSQL Meetup
2017-07-07Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at PgDay.Russia 2017
2017-07-03Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at Helsinki PostgreSQL Meetup
2017-06-30Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at Swiss PGDay 2017
2017-03-29Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at PGConf.US 2017
2017-03-17Introduction to Greenplum MPP Database
Talk at PgConf.Russia 2017
2017-03-12Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at Chemnitz Linux Days 2017
2017-02-05Tour de Data Types: VARCHAR2 or CHAR(255)?
Talk at FOSDEM PGDay 2017

2016

2016-11-03State of the Icecream
Lightning Talk at PGConf.EU 2016
2016-04-20How we made Greenplum Open Source
Talk at PGConf.US 2016
2016-03-22How we made Greenplum Open Source
Talk at Hamburg PostgreSQL User Group
2016-03-19How we made Greenplum Open Source
Talk at Chemnitz Linux Days 2016
2016-02-05How we made Greenplum Open Source
Talk at PgConf.Russia 2016

2015

2015-11-27Closing PGConf.DE 2015
Talk at PGConf.DE 2015
2015-11-18Resolving addresses to geocoordinates, using OpenStreetMap or ArcGIS
Talk at PGConf Silicon Valley 2015
2015-09-12Resolving addresses to geocoordinates, using OpenStreetMap or ArcGIS
Talk at PostgreSQL Day Beijing 2015
2015-04-16Resolving addresses to geocoordinates, using OpenStreetMap or ArcGIS
Talk at PostgreSQL Meetup Berlin
2015-03-26Enrich your data with geocoordinates from OpenStreetMap or ArcGIS
Talk at PGConf.US 2015
2015-03-20Enrich your data with geocoordinates from OpenStreetMap or ArcGIS
Talk at Chemnitz Linux Days 2015
2015-03-11Enrich your data with geocoordinates from OpenStreetMap or ArcGIS
Talk at Nordic PGDay 2015
2015-01-31Enrich your data with geocoordinates from OpenStreetMap or ArcGIS
Talk at FOSDEM PGDay 2015

2013

2013-11-08Closing PGConf.DE 2013
Talk at PGConf.DE 2013
2013-03-17Replikation mit PostgreSQL
Talk at Chemnitz Linux Days 2013

2012

2012-03-18Datenbanken von MySQL zu PostgreSQL portieren
Talk at Chemnitz Linux Days 2012

2011

2011-11-13Open Source Entscheidungen
Talk at OpenRheinRuhr 2011
2011-11-13Datenbanken von MySQL zu PostgreSQL portieren
Talk at OpenRheinRuhr 2011
2011-11-11Closing PGConf.DE 2011
Talk at PGConf.DE 2011
2011-11-11Stop Tuning your Data Warehouse
Talk at PGConf.DE 2011
2011-10-20Port databases from MySQL to PostgreSQL
Talk at PGConf.EU 2011
2011-08-20Was gibt es neues in PostgreSQL 9.1?
Talk at FrOSCon 2011
2011-08-20Stop Tuning your Data Warehouse
Talk at FrOSCon 2011
2011-05-19#postgresql IRC bots
Lightning Talk at PGCon 2011
Co-Speaker: Jan Wieck
2011-03-19Datenbanken von MySQL zu PostgreSQL portieren
Talk at Chemnitz Linux Days 2011

2010

2010-12-08PostgreSQL Administration Teil 1
Workshop at PGDay.EU 2010
2010-12-08PostgreSQL Administration Teil 2
Workshop at PGDay.EU 2010
2010-12-07Datenbanken von MySQL zu PostgreSQL portieren
Workshop at PGDay.EU 2010
2010-12-06Open Source Entscheidungen
Talk at PGDay.EU 2010
2010-11-13Was gibt es neues in PostgreSQL 9.0
Talk at OpenRheinRuhr 2010
2010-11-06Was gibt es neues in PostgreSQL 9.0
Talk at BLIT 2010
2010-11-06Replikation mit PostgreSQL 9.0
Talk at BLIT 2010
2010-09-18POFACS - PostgreSQL
Podcast at pofacs.de
2010-09-18Was gibt es neues in PostgreSQL 9.0
Talk at FrOSCamp 2010
2010-09-18Replikation mit PostgreSQL 9.0
Workshop at FrOSCamp 2010
2010-09-1810 things PostgreSQL 8.4 will do
Talk at FrOSCamp 2010
2010-08-22Was gibt es neues in PostgreSQL 9.0
Talk at FrOSCon 2010
2010-08-22Replikation mit PostgreSQL 9.0
Workshop at FrOSCon 2010
2010-08-19Heiße Bereitschaft (Neuerungen in PostgreSQL 9.0)
Article in iX 9/2010
2010-03-14Was gibt es neues in PostgreSQL ̶8̶.̶5̶ 9.0
Talk at Chemnitz Linux Days 2010
2010-03-13PostgreSQL optimieren
Workshop at Chemnitz Linux Days 2010

2009

2009-08-21PostgreSQL: Datenbankpraxis für Anwender, Administratoren und Entwickler
Book published at Open Source Press
2009-07-01PostgreSQL 8.4 Announcement
Article in Heise online
2009-03-15PostgreSQL optimieren
Workshop at Chemnitz Linux Days 2009
2009-02-25PostgreSQL optimieren und mit Perl kombinieren
Workshop at Deutscher Perl-Workshop 2009
2009-02-19Neuerungen in PostgreSQL 8.4
Article in iX 3/2009

2008

2008-10-11PostgreSQL optimieren
Workshop at Open-Source-Tag Magdeburg
2008-10-11Welche Datenbank? Warum PostgreSQL?
Talk at Open-Source-Tag Magdeburg
2008-08-01PostgreSQL Tuning
Article in Technical Review

2007

2007-07-06Community Relations
Talk at PGDay.IT 2007
2007-07-06Migrating a community platform from Mysql to PostgreSQL
Talk at PGDay.IT 2007
2007-07-06Auditing data changes with tablelog
Talk at PGDay.IT 2007
2007-06-20PostgreSQL 8.3
Article in Entwickler Magazin

2006

2006-03-04PostgreSQL - the world most advanced open source database system
Workshop at Linux-Info-Tag Dresden