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What happens when US economic data becomes unreliable
Sound economic planning and policymaking requires trustworthy data. Private data can serve as a complement but not fully replace official U.S. statistics.
New
The latest blog posts to take off on Hacker News. 4,224 posts.
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Pandas Exercises for Data Analysis (Interactive)
101 interactive pandas exercises with solutions. Edit and run every code block directly in your browser — no installation needed.
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Big data on the cheapest MacBook
How does the latest entry-level MacBook perform on database workloads? We benchmarked it using ClickBench and TPC-DS SF300. We found that it could complete both workloads, sometimes with surprisingly good results.
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We are building data breach machines and nobody cares
A few weeks ago, my longstanding friend and colleague Curt Cunning mentioned to me that he was slogging through Nietzsche, which bespeaks his incredible will to power through things that are unpleasant (one of the many things that makes him an exceptional engineer). In any case, it lead me to revisit some of his work…
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Optimizing Top K in Postgres
How ParadeDB uses principles from search engines to optimize Postgres' Top K performance.
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Graphing how the 10k* most common English words define each other
The words are a subset of the 10,000 most common words from Google's Trillion Word Corpus , with definitions sourced from Open English Wordnet .
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C# strings silently kill your SQL Server indexes in Dapper
If you're using Dapper with anonymous objects to query varchar columns, you're probably sending nvarchar(4000) parameters — causing CONVERT_IMPLICIT on every row and defeating your indexes. Here's the fix.
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Labor market impacts of AI: A new measure and early evidence
We introduce "observed exposure," combining LLM capability with real Claude usage data, and share early evidence on employment effects.
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NanoGPT Slowrun: Language Modeling with Limited Data, Infinite Compute
NanoGPT Slowrun is an open effort to implement data-efficient learning algorithms; 5.5x data efficiency in the first week and improving.
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MinIO Is Dead, Long Live MinIO
MinIO’s repo is officially archived and abandoned. And how AI Agents helped bring it back from the dead. This post explains how a community fork restores the admin console and ships binaries via CI/CD pipeline.
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Google Street View in 2026
Benchmarks & Tips for Big Data, Hadoop, AWS, Google Cloud, PostgreSQL, Spark, Python & More...
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Hardwood: A New Parser for Apache Parquet
Today, it’s my great pleasure to announce the first public release of Hardwood, a new parser for the Apache Parquet file format, optimized for minimal dependencies and great performance. Hardwood is …
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The real cost of random I/O
How good is the random_page_cost default, and should you lower it on modern flash storage?
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New accounts on HN more likely to use em-dashes
I’ve had this sense that HN has gotten absolutely innundated with bots last few months. First most obvious giveaway is the frequency with which you see accounts posting brilliant insights like 13 60 well and t6ctctfuvuh7hguhuig8h88gd to f6gug7h8j8h6fzbuvubt GB I be cugttc fav uhz cb ibub8vgxgvzdrc to bubuvtxfh tf d…
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Why the KeePass format should be based on SQLite
Mohammed Ketab
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What is a database transaction?
What are database transactions and how do SQL databases isolate one transaction from another?
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A distributed queue in a single JSON file on object storage
How to build a single global queue for distributed systems on object storage: Start with a single file on object storage, then add write batching, a stateless broker, and high-availability.
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Cosmologically Unique IDs
We are an exploratory species, just past the solar system now, but perhaps one day we will look back and call our galaxy merely the first. There are many problems to solve along the way, and today we will look at one very small one. How do we assign IDs to devices (or any object) so the IDs are guaranteed to always be…
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Two Bits Are Better Than One: making bloom filters 2x more accurate
Optimisation of bloom filters in Floe using double bit setting with lightweight hashing.
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Testing Postgres race conditions with synchronization barriers
Synchronization barriers let you test for race conditions with confidence.
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Zero downtime migrations at petabyte scale (2024)
Data migrations are a critical part of the database lifecycle, and are sometimes necessary for version upgrades, sharding, or moving to a new platform. In many cases, migrations are painful and error-prone. In this article, we walk through how migrations are performed at PlanetScale, and offer advice on how to improve…
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Building SQLite with a small swarm
Yes, for a supported subset of SQL. To establish a baseline, I integrated the SQLLogicTest suite.
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Backblaze Drive Stats for 2025
Backblaze's 2025 Year-End Drive Stats Report provides an in-depth analysis of hard drive failure rates for Q4, the full year, and lifetime performance across its data center fleet.
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Apache Arrow is 10 years old
The Apache Arrow project was officially established and had its first git commit on February 5th 2016, and we are therefore enthusiastic to announce its 10-year anniversary! Looking back over these 10 years, the project has developed in many unforeseen ways and we believe to have delivered on our objective of…
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How Is Data Stored?
Invariably, it involves trying to trap electrons in increasingly complicated ways.
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Text classification with Python 3.14's ZSTD module
Python 3.14 added Zstandard to stdlib; its incremental API finally makes classify-by-compression practical.
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Invention of DNA "page numbers" opens up possibilities for the bioeconomy
A major technological advance in DNA writing enables researchers to construct and create in the language of biology