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Many people are surprised to learn that `sed`, a seemingly simple text filtering program, is actually Turing complete. This realization prompts the question: how can a text processing utility achieve such computational power? The answer lies in sed's fundamental operations. Essentially, sed functions as a miniature...
LLMs can now make use of the right tools to resolve complex queries and tasks
Demystifying my GraphQL Summit talk
Common Table Expressions in PostgreSQL are a powerful SQL construct. You can think of CTEs as a view that is materialized only while the query is running. Recursive CTEs allow themselves to be called until some condition is met. This post from the Citus Data team explores how recursive CTEs work in Postgres.
Like almost all rules, there are cases where breaking them is a good idea and seasoned writers may well object with "but" responses for some of these. Thus, consider the rules below as mental rumble strips - you should probably slow down and think if you encounter these cases.
After exploring Java bytecode in previous years (2022, 2023, 2024), this year we’ll take an unexpected detour for a Java advent: instead of generating Java bytecode, we’ll use Java to build and execute LLVM IR, the intermediate language behind compilers like clang. Using Java’s Foreign Function & Memory (FFM) API…
Git only tracks files, not directories. It will only create a directory if it contains a tracked file. But sometimes you need to “track” a directory, to ensure it exists for fresh clones of a repository. For example, you might need an output directory called build.
Eric Merritt, Erlang and distributed systems expert, gives his views on BEAM languages, Hindley–Milner type systems and new technologies In this case, This is not a Monad tutorial interviewed Eric …
I really like the "tech debt" metaphor. A lot of people don't, but I think that's because they either don't extend the metaphor far enough,...
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Christmas is coming up. When I used to work at a bank the entire month of December and a bit of January we were placed under “Change Freeze”. We weren’t allowed to deploy updates to our applications during this period. The thinking was: A lot of people are away over Christmas Application changes can lead to crashes…
In August, we wrote about our concerted stability effort. Today, we've more than achieved our CockroachDB stability goal of running a 100-node cluster.
The DOM is the foundation of the web platform programming model, and its design and performance impacts the rest of the browser pipeline. However, its history and evolution is far from a simple story. Over the past three years, we’ve embarked on an in-flight refactoring of the DOM in Microsoft Edge, with our eye on
Introducing Yelp's Local Graph Tomer Elmalem, Software Engineer May 3, 2017 We’re continuously adding new features to our API to make it easier for developers to integrate with our data...
As a project evolves, does the new code just add on top of the old code? Or does it replace the old code slowly over time? In order to understand this, I built a little thing to analyze Git projects, with help from the formidable GitPython project.
This is basically an expanded explanation of what I did after reading this tutorial by Marwan Burelle and then sitting down and trying to write my own implementation, so the steps are going to be fairly similar. The main implementation differences are that my version is simpler and more vulnerable to memory…
