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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

idle_in_transaction_session_timeout: Terminating idle transactions in PostgreSQL

by Hans-Jürgen Schönig | 04.2018
Long PostgreSQL transactions can cause table bloat. idle_in_transaction_session_timeout limits the duration of a transaction to prevent bloat

Window function: Why first_value and last_value are not bugs

by Hans-Jürgen Schönig | 04.2018
PostgreSQL can be used for more than just trivial queries. A look into what a window function does: first_value and last_value in PostgreSQL.

PostgreSQL: Speeding up analytics and window functions

by Hans-Jürgen Schönig | 03.2018
How to improve speed is by rearranging window functions in a clever way: some clever optimization can give you better database performance.

What PostgreSQL Full-Text-Search has to do with VACUUM

by Hans-Jürgen Schönig | 03.2018
What does PostgreSQL Full-Text-Search have to do with VACUUM? Find out about the GIN pending list and how to use it to improve performance.

COPY in PostgreSQL: Moving data between servers

by Hans-Jürgen Schönig | 03.2018
More than copy data between a file and a table: a pretty cool feature was added to PostgreSQL. You can send data directly to the UNIX pipe.

PostgreSQL performance: How the optimizer handles views

by Hans-Jürgen Schönig | 02.2018
How does the PostgreSQL optimizer handle views? Are views good or bad? Write better and faster code, improve performance.

Detect PostgreSQL performance problems easily

by Hans-Jürgen Schönig | 02.2018
Every DBA in charge of PostgreSQL should know, how to track down potential performance problems to figure out, what is really going on.

PostgreSQL indexing: Index scan vs. Bitmap scan vs. Sequential scan (basics)

by Hans-Jürgen Schönig | 02.2018
Introduction to PostgreSQL indexing. How and when to use an index scan, bitmap scan and/or sequential scan. Get performance tips.

Avoiding unnecessary function calls in PostgreSQL

by Hans-Jürgen Schönig | 01.2018
Fix bad performance related to slow function calls: When it comes to slow procedures, PostgreSQL often isn't to blame. Here's why.

CYBERTEC pgconfigurator: Configuring PostgreSQL visually

by Hans-Jürgen Schönig | 01.2018
CYBERTEC pgconfigurator is the ideal tool to configure postgresql.conf visually. PostgreSQL configuration has never been easier.
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