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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: Finding Christmas presents

by Hans-Jürgen Schönig | 12.2013
Christmas is approaching fast so I thought I'd give PostgreSQL users some inspiration when it comes to buying their Christmas […]

effective_cache_size: Better set it right

by Hans-Jürgen Schönig | 11.2013
PostgreSQL knows a parameter called effective_cache_size. To many this is one of the most mysterious settings in the entire PostgreSQL […]

Operator classes explained

by Hans-Jürgen Schönig | 11.2013
After my morning session in Dublin some people asked me to share the codes of an operator class I created […]

Common security issues prior to PostgreSQL 15

by Hans-Jürgen Schönig | 10.2013
UPDATED July 2023: PostgreSQL has a sophisticated security system capable of handling complex policies and user permissions are an essential […]

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 […]

CREATE DOMAIN: Data type abstraction

by Hans-Jürgen Schönig | 10.2013
If a good programmer is facing a technical problem, he will always try to abstract the problem. In a procedural […]

Changing histogram sizes

by Hans-Jürgen Schönig | 10.2013
Histograms are a common way for a relational database to store statistical information about data. What is this kind of […]

Reducing the impact of locking

by Hans-Jürgen Schönig | 10.2013
“Waiting is the slowest way to execute an operation” - this is how a professor at my university in Vienna […]

Per-tablespace storage parameters

by Hans-Jürgen Schönig | 10.2013
Just like most other database systems I am aware of PostgreSQL providing a feature called tablespaces. In general a tablespace […]

Sequences – transactional behavior

by Hans-Jürgen Schönig | 09.2013
In this posting I would like to describe some important aspects of PostgreSQL sequences. In our daily work we have […]
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