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

Security barriers: Cheating on the planner

by Hans-Jürgen Schönig | 12.2013

UPDATED Aug. 2023 - How a security barrier can theoretically be used to speed up PostgreSQL queries and to see how PG works under the hood.

Performance

PostgreSQL: Finding Christmas presents

by Hans-Jürgen Schönig | 12.2013

In this blog we are talking about KNN-search. KNN-search has been made for finding something close to what you are looking for.

How To

effective_cache_size: Better set it right

by Hans-Jürgen Schönig | 11.2013

effective_cache_size can have a serious impact on execution plans and change things dramatically. See what kind of difference it can make.

How To

Operator classes explained

by Hans-Jürgen Schönig | 11.2013

In this blog we are tallking about the topic operator class. We will show you some strategies for your database.

How To

Common security issues prior to PostgreSQL 15

by Hans-Jürgen Schönig | 10.2013

UPDATED July 2023: How to avoid security issues in PostgreSQL prior to v15 due to the public schema. Repair the problem.

How To

Reducing space consumption

by Hans-Jürgen Schönig | 10.2013

After digging through some customer source code yesterday I thought that it might be worth publishing a post about space consumption and enum types. It seems to be quite common to store status information as text fields. This is highly inefficient.

How To