PostgreSQL
PostgreSQL Autonomous Transaction
PostgreSQL is an all round impressive Relational DataBase Management System which implements the SQL standard (see the very useful reference page Comparison of different …
Getting more out of PostgreSQL
Notes on SQL technique, data modeling, and PostgreSQL internals — from the author of The Art of PostgreSQL. New articles are built on the free Lab so you can run every query yourself.
Conferences
Open World Forum Conference
Last Friday I had the chance to be speaking at the Open World Forum in the NewSQL track, where we had lots of interest and excitement around the NoSQL offerings. Of …
Projects
A Worthwile Micro Optimisation
In our previous article about Loading Geolocation Data, we did load some data into PostgreSQL and saw the quite noticable impact of a user transformation. As it happens, …
Projects
Loading Geolocation Data
As I’ve been mentionning in the past already, I’m currently rewriting pgloader from scratch in Common Lisp. In terms of technical debt that’s akin to …
Conferences
Open World Forum 2013
Have you heard about the Open World Forum conference that takes place in Paris, October 3-5, 2013? I’ll be presenting a talk about PostgreSQL in the track NewSQL: …
PostgreSQL
PostgreSQL data recovery
The following story is only interesting to read if you like it when bad things happen, or if you don’t have a trustworthy backup policy in place. By trustworthy I …
PostgreSQL
Using trigrams against typos
In our ongoing Tour of Extensions we played with earth distance in How far is the nearest pub? then with hstore in a series about trigger, first to generalize Trigger …
PostgreSQL
Auditing Changes with Hstore
In a previous article about Trigger Parameters we have been using the extension hstore in order to compute some extra field in our records, where the fields used both for …
PostgreSQL
Trigger Parameters
Sometimes you want to compute values automatically at INSERT time, like for example a duration column out of a start and an end column, both timestamptz. It’s easy …
PostgreSQL
Understanding Window Functions
There was SQL before window functions and SQL after window functions: that’s how powerful this tool is. Being that of a deal breaker unfortunately means that it can …
Projects
Migrating from MySQL to PostgreSQL
About the only time when I will accept to work with MySQL is when you need help to migrate away from it because you decided to move to PostgreSQL instead. And it’s …
PostgreSQL
How far is the nearest pub?
In our recent article about The Most Popular Pub Names we did have a look at how to find the pubs nearby, but didn’t compute the distance in between that pub and …