Category: How To

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Broken foreign keys: how can that happen in PostgreSQL?

by Laurenz Albe | 12.2023
  One of the fundamental requirements for a relational database is that the transaction system always maintains consistency. That means […]

What you should know about PostgreSQL minor upgrades

by Laurenz Albe | 12.2023
© Laurenz Albe 2023 The PostgreSQL documentation is rather terse on the subject of minor upgrade. The reason is probably […]

Citus live query inspection using citus_stat_activity

by Hans-Jürgen Schönig | 11.2023
Most people who use PostgreSQL on a regular basis may have seen pg_stat_activity, which is a system view. It gives […]

Connection Management in PostgreSQL - reserved_connections

by Hans-Jürgen Schönig | 11.2023
In PostgreSQL 16, a new feature has been added: reserved_connections. What is the idea behind it? Back in the old […]

Kubernetes: Running the CYBERTEC PostgreSQL operator

by Hans-Jürgen Schönig | 11.2023
Kubernetes is a powerful and popular container orchestration platform that offers numerous benefits for organisations and developers. Many companies out […]

Using multiple triggers on the same table in PostgreSQL

by Hans-Jürgen Schönig | 11.2023
“Developers, developers, developers, …” - let us not remind ourselves of this painful Microsoft presentation which was given by Mr […]

kill -9 explained for PostgreSQL

by Hans-Jürgen Schönig | 11.2023
Do you want to kill a database connection? Or maybe you want to use kill -9? On your PostgreSQL database […]

ERROR: current transaction is aborted in PostgreSQL

by Hans-Jürgen Schönig | 10.2023
Whenever you actively use transaction blocks in PostgreSQL “ERROR: current transaction is aborted, commands ignored until end of transaction block” […]

Kill long running queries in PostgreSQL

by Hans-Jürgen Schönig | 10.2023
How to terminate long running queries in PostgreSQL: People might be fans of SQL, people might like PostgreSQL on Kubernetes […]

pg_resetwal: When to reset the WAL in PostgreSQL

by Hans-Jürgen Schönig | 10.2023
pg_resetwal (formerly known as pg_resetxlog) is a command provided by PostgreSQL which allows you to reset the WAL (Write Ahead […]
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