PostgreSQL
Simple Case for Pivoting in SQL
In a recent article Craig Kerstiens from Heroku did demo the really useful crosstab extension. That function allows you to pivot a table so that you can see the data from …
tag
PostgreSQL
212 posts
Conferences
Conferences Report
Recently I’ve been to some more conferences and didn’t take the time to blog about them, even though I really did have great fun over there. So I felt I …
Conferences
Make the Most ouf of SQL
Tonight I had the pleasure to present a talk at the Dublin PostgreSQL User Group using remote technologies. The talk is about how to make the most ouf of PostgreSQL when …
PostgreSQL
Nearest Big City
In this article, we want to find the town with the greatest number of inhabitants near a given location. A very localized example We first need to find and import some …
PostgreSQL
Bulk Replication
In the previous article here we talked about how to properly update more than one row at a time, under the title Batch Update. We did consider performances, including …
PostgreSQL
Batch Update
Performance consulting involves some tricks that you have to teach over and over again. One of them is that SQL tends to be so much better at dealing with plenty of rows …
Conferences
Emacs Conference
The Emacs Conference is happening, it’s real, and it will take place at the end of this month in London. Check it out, and register at Emacs Conference Event Brite. …
PostgreSQL
HyperLogLog Unions
In the article from yesterday we talked about PostgreSQL HyperLogLog with some details. The real magic of that extension has been skimmed over though, and needs another …
PostgreSQL
PostgreSQL HyperLogLog
If you’ve been following along at home the newer statistics developments, you might have heard about this new State of The Art Cardinality Estimation Algorithm …
Projects
Playing with pgloader
While making progress with both Event Triggers and Extension Templates, I needed to make a little break. My current keeping sane mental exercise seems to mainly involve …
debian
Live Upgrading PGQ
Some skytools related new today, it’s been a while. For those who where at my FOSDEM’s talk about Implementing High Availability you might have heard that I …
Conferences
Another Great FOSDEM
This year’s FOSDEM has been a great edition, in particular the FOSDEM PGDAY 2013 was a great way to begin a 3 days marathon of talking about PostgreSQL with people …