profiling

Difference between DISTINCT and GROUP BY

January 7, 2014
0

Today we had an interesting situation where the same query was executed significantly slower when it was written with GROUP BY instead of DISTINCT and I...

mysql

AB – Apache Benchmart suite

April 8, 2012
0

I’ve started to write a framework for apache benchmark (ab) to be able to run smoothly and leisurely ab test in background and just get the...

Benchmark

Unindexed queries can be really expensive

February 14, 2012
2

The story happened with a webshop application running on Amazon EC2 microinstances. Actually on two instance. Amazon business model is basically simple, they ask money for...

mysql

Tweets

@n26 After trying to transfer foreign currency and couldn’t find any information I finally saw this: “If you have an N26 Business or N26 Business Black account, foreign currency transfers are not possible” How is it possible that one of the most important feature is not available?!?!

About a year ago

Before you head over to the community dinner come to my talk “From scheduled downtime to self-healing infrastructure” to learn about large scale automation at 6pm #perconalive

About 2 years ago

Getting the best swag at Percona #mysql pic.twitter.com/GwocwDGtd0

About 2 years ago

Rock-paper-scissors of #MySQL and #InnoDB: RAM beats everything

About 4 years ago

So true: “Management is doing things right; leadership is doing the right things.” - Peter Drucker

About 4 years ago