I’m sure I’m not alone when I say, sometimes I get sidetracked. In this particular instance, I hadn’t intended to start learning about User-Defined Types (UDT) in PostgreSQL – I just wanted to test a behavior that involved creating a UDT. But, once I started reading, I was hooked. I mean, four distinct UDTs with different behaviors? That’s pretty cool. Let’s get into it.
2026-04-17
2026-04-17
1,111 reads
Introduction We mostly get inclined to use/introduce MongoDB for JSON storing/processing in our database system and Elasticsearch for searching operations in JSON data. However, what we often tend to overlook is that in reality, PostgreSQL can actually act as both NoSQL store and a powerful search engine too. It also comes with ACID guarantees, transactions, […]
2026-03-27
1,621 reads
Learn about transaction ID wraparound in PostgreSQL, which caused a problem for the author.
2026-02-23 (first published: 2026-02-13)
4,363 reads
This article shows a technique for cleaning out older data from PostgreSQL tables using Python to follow a set of rules you create.
2026-01-30
867 reads
We have a script that can be used to help tune ind...
2026-01-21
1,389 reads
This article discusses how to work with JSON data in PostgreSQL using Python.
2025-12-12
651 reads
Learn about unlogged tables and how they work in PostgreSQL.
2025-11-21
5,022 reads
Running Postgres in Docker is great for a quick test but what if you want it to behave like a proper, production-style setup with SSL encryption, certificate-based authentication, persistent volumes, and custom configurations? In this article, we’ll find out how
2025-10-10
We are deploying a new application that uses PostgreSQL database. My manager has asked me to design high availability into the implementation. As a SQL Server database administrator, I’ve been managing PostgreSQL databases for a while. However, I’m not sure which high availability options to implement. What are the different high availability options for PostgreSQL?
2025-08-27
When building the sql-on-k8s-operator, I wanted to make sure it could handle both planned...
I’ve been doing a deep dive into SQL Server on-disk structures lately, and one...
By DataOnWheels
Thanks to everyone who joined the blog party this month. I noticed three themes...
Comments posted to this topic are about the item What's new in R 4.6
Comments posted to this topic are about the item Interesting Changes in R, which...
Comments posted to this topic are about the item PostgreSQL String Functions Part 1
When thinking about the identity property and sequence objects, which of these can generate values before an insert statement is executed?
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