PostgreSQL

PostgreSQL on FreeBSD, getting started

Although we are running PostgreSQL mostly on Linux distributions, you can install an run PostgreSQL on a lot of other operating systems. On of them is FreeBSD. FreeBSD is one of those Unixes that derived from the(…)

PostgreSQL on Linux: what is cached?

By Franck Pachot . In a recent tweet I wanted to highlight the importance of knowing what you measure with pgbench, because looking at “Transactions per second” without knowing if you are in shared buffer cache hits, or filesystem(…)

8000 databases in one PostgreSQL cluster?

A while ago I posted this tweet on Twitter: #Postgresql friends: 8000 databases. One cluster, 8000 clusters, Kubernetes,, what would be your choice? Let's assume 10gb per database. I know backup/restore, inodes etc, no discussions about(…)

An introduction into server side programming in PostgreSQL – 3 – PL/pgSQL, procedures

In the first to posts in this series (An introduction into server side programming in PostgreSQL – 1 – SQL functions, basics , An introduction into server side programming in PostgreSQL – 2 –(…)

An introduction into server side programming in PostgreSQL – 2 – SQL functions, sets, udts and polymorphic types

This is part two of the little series about server side programming in PostgreSQL. In the last post we had a look at the basics when it comes to SQL functions. We learned how to write those(…)

An introduction into server side programming in PostgreSQL – 1 – SQL functions, basics

Over the last years I've seen many different applications running against PostgreSQL. The use cases vary from simple applications, which only use basic data types and a few tables and views, to complex applications with custom types, more specific data(…)

Google Cloud SQL Insights: ASH, plans and statement tagging

By Franck Pachot . Looking at database performance has always been necessary to optimize the response time or throughput, but when it comes to public cloud where you are charged by resource usage, performance tuning is critical for cost(…)

Dealing with German “Umlaute” in PostgreSQL’s full text search

PostgreSQL comes with build-in Full Text Search and you can do quite amazing stuff with it. A question that popped up during one of the last PostgreSQL for developers workshop was: How(…)

Cluster level encryption for PostgreSQL 14

The discussions how and why TDE (Transparent data encryption) should be implemented in PostgreSQL goes back several years. You can have a look at these two more recent threads to get an idea on how much discussion happened around that(…)

Running two Patroni on one host using an existing etcd

Have you ever asked yourself, how to create a second Patroni PostgreSQL cluster on an existing server using the existing etcd? My first idea was to study the documentation of Patroni, but unfortunately without big(…)