do 10 januari 2019
SQL defines many statements for different things: creating tables, putting data into tables, using tables, between other things. To reason about groups of statements with related behavior, the data community uses common, widely accepted acronyms to designate these groups.
For example, the acronym “DDL” stands for “data definition language”, the …Read More
wo 21 november 2018
Upon our arrival in New Orleans on November 5th, 2018, my friend Nathan explained to me, with a mix of apparent excitement and apprehension: “our internal Jepsen test suite found a real consistency bug.”
I replied: “This is great! This confirms yet again that good testing is actually useful! Have …Read More
wo 16 mei 2018
Why was CockroachDB designed to be compatible with PostgreSQL?
Perhaps surprisingly, the answer to this question is currently (as of early May 2018) not documented publicly …Read More
di 08 mei 2018
When I started contributing to CockroachDB, I was foremost excited to contribute to an open source project with a strong “free as in freedom” component, which makes CockroachDB agreeably FOSS in my eyes.
FOSS has a social purpose, one that supports giving others both the tools to progress forward and …Read More
wo 02 mei 2018
A few months ago, I was invited to present CockroachDB to a tech consulting office in Amsterdam. The audience was welcoming and receptive. They understood, appreciated, and lauded the “flagship” features of CockroachDB: distribution, scalability, high availability, operating simplicity.
Yet a question came up which I had not heard before …Read More
di 14 juni 2016
za 20 december 2014
di 07 oktober 2014
Every now and then a scientist should step back from his specialization and reflect in the entire research domain around him/her. What are the big, hard problems in my general area of research? I can see a couple:
- Privacy and data retention: we must discover and learn how to …
zo 14 september 2014
For the last 4 years I have been growing dissatisfied with the quality and contents of the BSc programs in informatics in the Netherlands. So as the engineer inside me requires, I have also thought hard to find a (putative) solution. This is the result.
Two components: Foundations of …
zo 10 november 2013
Human beings are a disease, a cancer of this planet.—-Agent Smith, The Matrix
One morning I woke up suddenly at 4am. A dream brought me An Idea, and I could not shake it away. As the hours went by, I became convinced it would make a crazy yet quite …Read More