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Hans-Jürgen Schönig

Founder & CEO of CYBERTEC
Hans-Jürgen Schönig has worked with PostgreSQL since the 90's. He is the CEO and technical lead of CYBERTEC PostgreSQL International, a market leader in the field. He's served countless customers around the globe since the year 2000. He is also the author of the well-received "Mastering PostgreSQL" book series, as well as several other books about PostgreSQL replication and administration.

Articles by Hans-Jürgen Schönig

PostgreSQL: "UPDATE … RETURNING" made even better

by Hans-Jürgen Schönig | 09.2025
PostgreSQL 18 offers a couple of new features such as asynchronous I/O (aio), improvements around indexing, and a lot more. […]

PostgreSQL 18: Better I/O performance with AIO

by Hans-Jürgen Schönig | 09.2025
PostgreSQL 18 is around the corner and it is time to take a look at one of the most important […]

PostgreSQL storage: Comparing storage options

by Hans-Jürgen Schönig | 07.2025
PostgreSQL offers more than just traditional row storage. We benchmarked row store, column store, CSV, and Parquet across 144 million rows - see what storage really saves space and boosts performance.

Using regular expressions and arrays in PostgreSQL

by Hans-Jürgen Schönig | 06.2025
Learn how to combine the usage of regular expressions and arrays in PostgreSQL into a more powerful technology through this blog post.

CREATE INDEX: Data types matter

by Hans-Jürgen Schönig | 05.2025
Data types play a crucial role in ensuring optimal performance, efficiency, as well as semantics. Read more about CREATE INDEX.

Indexing vectors in PostgreSQL

by Hans-Jürgen Schönig | 04.2025
Efficiency is always a topic. Therefore, it is important to understand that indexing is the key to success. Read more about indexing vectors.

pgai: Importing Wikipedia into PostgreSQL

by Hans-Jürgen Schönig | 04.2025
In this blog posting you can read more about how we can import Wikipedia into PostgreSQL and make use of it by using pgai.

Using pgvector for timeseries data

by Hans-Jürgen Schönig | 04.2025
pgvector is a popular PostgreSQL extension for semantic search, facilitating discussions on AI and related topics.

Semantic Search in PostgreSQL: An Overview

by Hans-Jürgen Schönig | 03.2025
PostgreSQL enhances search capabilities with extensions like pgvector, enabling advanced semantic search. Find out more in this blog posting.

Debugging PostgreSQL more easily

by Hans-Jürgen Schönig | 03.2025
PostgreSQL powers many applications. In this blog posting you can read more about how to debug database applications effectively.
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