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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

pgbouncer: Proving the point

by Hans-Jürgen Schönig | 05.2013
pgbouncer: Opening and closing a database connection over and over again is not free, but overhead worth thinking about.

GIN - Just A Kind Of Index

by Hans-Jürgen Schönig | 03.2013
GIN stands for Generalized Inverted Index. Find out how data is organized within a PostgreSQL GIN index vs a B-Tree index e.g.

PostgreSQL virtualization revisited

by Hans-Jürgen Schönig | 03.2013
In this blog you can read more about virtualization. This is cool from many points of view but what does it mean for performance?

PostgreSQL 9.3: "One line - one standby"

by Hans-Jürgen Schönig | 01.2013
pg_basebackup for PostgreSQL: You'll see that the call itself already has all the info a user needs to write a simple recovery.conf file.

Better PostgreSQL performance on SSDs

by Hans-Jürgen Schönig | 01.2013
The optimizer uses parameters to optimize queries, which have been constant for years. Do SSD disks have more advantages?

Removing duplicates in PostgreSQL

by Hans-Jürgen Schönig | 12.2012
Today somebody asked me how to remove duplicates which accidentally made it into a table. The problem is: A normal […]

Why the tax collector hates sequences

by Hans-Jürgen Schönig | 09.2012
How can a simple database bring you into serious trouble? Find out in the context of taxes and CREATE SEQUENCE.

Outer joins revisited

by Hans-Jürgen Schönig | 08.2012
Outer joins require careful thought and planning to write correctly. How to write outer joins so that you get good results.
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