Developing on many versions of PostgreSQL at once

In a developer’s ideal world there’s only one stable and one development version of the product. Everyone updates immediately to the next stable version and nobody cares about anything older...
August 19, 2019

PostgreSQL: Regular expressions and pattern matching

A regular expression is a special text string used to describe a search pattern. PostgreSQL’s regular expressions supports three separate approaches to pattern matching: POSIX-style regular expressions (BREs and EREs)...
July 31, 2019

Partitioning enhancements in PostgreSQL 12

Declarative partitioning got some attention in the PostgreSQL 12 release, with some very handy features. There has been some pretty dramatic improvement in partition selection (especially when selecting from a...
July 15, 2019

Swoop de Dupe

The problem: duplicate rows Once upon a time, there was a database person who knows about referential integrity and its importance for creating database tables. The interesting part is that...
May 29, 2019