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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

Citus live query inspection using citus_stat_activity

by Hans-Jürgen Schönig | 11.2023
How to use citus_stat_activity to get all the the information about your database shards you need at once - makes it super easy to debug.

Connection Management in PostgreSQL - reserved_connections

by Hans-Jürgen Schönig | 11.2023
Reserved connections are a new connection management feature added as of PostgreSQL 16. How to configure & use reserved_connections.

Kubernetes: Running the CYBERTEC PostgreSQL operator

by Hans-Jürgen Schönig | 11.2023
Learn how to use Minikube to run your PostgreSQL cluster in your own Kubernetes deployment and news about PostgreSQL operator.

Using multiple triggers on the same table in PostgreSQL

by Hans-Jürgen Schönig | 11.2023
What happens if you deploy many triggers on the very same PostgreSQL table? What order do the multiple triggers fire in?

kill -9 explained for PostgreSQL

by Hans-Jürgen Schönig | 11.2023
How to kill PostgreSQL processes properly: understand how kill -9 really works vs. a normal process kill. With examples.

ERROR: current transaction is aborted in PostgreSQL

by Hans-Jürgen Schönig | 10.2023
ERROR: current transaction is aborted, commands ignored until end of transaction block in PostgreSQL: what it means & how to fix this error.

Kill long running queries in PostgreSQL

by Hans-Jürgen Schönig | 10.2023
How to detect and terminate long running queries in PostgreSQL using two different methods. Also: How to automatically kill slow queries.

pg_resetwal: When to reset the WAL in PostgreSQL

by Hans-Jürgen Schönig | 10.2023
How to use pg_resetwal - know the risks - When should you use this powerful tool of last resort to reset WAL? Find out now.

Migrate from Sybase to PostgreSQL

by Hans-Jürgen Schönig | 10.2023
How to migrate from Sybase to PostgreSQL: Sybase ASE is dead. Those still using Sybase face the need to migrate to a new platform. 3 methods.

pg_stat_io and PostgreSQL 16 performance

by Hans-Jürgen Schönig | 10.2023
How to use pg_stat_io for true debugging power in PostgreSQL v16. Offers deep insights into database I/O behavior & performance.
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