Tech Talk

On PostgreSQL Logging Verbosity

Recently I stumbled across a question on Reddit regarding the performance impact of using pgBadger on an active database server. The only real answer to this question is: do not use pgBadger. Before anyone asks—no, you shouldn’t use pgFouine either. This is not an indictment on the quality of either project, but a statement of their obsolescence in the face of recent PostgreSQL features. One of the recommended postgresql.conf changes for both of these tools is to set log_min_duration_statement to 0.

Finally Done With High Availability

Well, my publisher recently informed me that the book I’ve long been slaving over for almost a year, is finally finished. I must admit that PostgreSQL 9 High Availability Cookbook is somewhat awkward as a title, but that doesn’t detract from the contents. I’d like to discuss primarily why I wrote it. When Packt first approached me in October of 2013, I was skeptical. I have to admit that I’m not a huge fan of the “cookbook” style they’ve been pushing lately.

Friends Don't Let Friends Use Loops

Programming is fun. I love programming! Ever since I changed my career from programming to database work, I’ve still occasionally dabbled in my former craft. As such, I believe I can say this with a fair amount of accuracy: programmers don’t understand databases. This isn’t something small, either; there’s a fundamental misunderstanding at play. Unless the coder happens to work primarily with graphics, bulk set-based transformations are not something they’ll generally work with.

Foreign Tables are not as Useful as I Hoped

When I heard about foreign tables using the new postgres_fdw foreign data wrapper in PostgreSQL 9.3, I was pretty excited. We hadn’t upgraded to 9.3 so I waited until we did before I did any serious testing. Having done more experimentation with it, I have to say I’m somewhat disappointed. Why? Because of how authentication was implemented. I’m going to get this out of the way now: The postgres_fdw foreign data wrapper only works with hard-coded plain-text passwords, forever the bane of security-conscious IT teams everywhere.

PGCon 2014 Unconference: A Community

This May, I attended my first international conference: PGCon 2014. Though the schedule spanned from May 20th to May 23rd, I came primarily for the talks. Then there was the Unconference on the 24th. I’d never heard of such a thing, but it was billed as a good way to network and find out what community members want from PostgreSQL. After attending the Unconference, I must admit I’m exceptionally glad it exists; it’s something I believe every strong Open Source project needs.