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MongoDB Server Security Update, December 2025
The following is an update on the security vulnerability identified in December 2025.
Topics /
Databases & Data
The most popular blog posts about databases & data on Hacker News. 4,224 posts.
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Dbt Labs acquires SDF Labs
dbt Labs has acquired SDF Labs to enhance analytics engineering solutions. Learn how this partnership strengthens the modern data stack.
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ANN v3: 200ms p99 query latency over 100B vectors
Our latest ANN release supports scales of 100+ billion vectors in a single search index, with 200ms p99 query latency at 1k QPS and 92% recall.
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R programming for those coming from other languages
Things a programmer coming from another language needs to know about R, especially those things that might be most surprising
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Selective async commits in PostgreSQL – balancing durability and performance
Safely leverage PostgreSQL's asynchronous commit for significant performance gains
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90x Faster Than Pgvector – Lantern's HNSW Index Creation Time
Index creation time is a critical database metric. Learn more about how Lantern enables 90x faster index creation times than pgvector, and how Lantern compares to Pinecone.
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ScaNN: Efficient Vector Similarity Search
Posted by Philip Sun, Software Engineer, Google Research Suppose one wants to search through a large dataset of literary works using queries that r...
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Dataflow/Beam and Spark: A Programming Model Comparison
Dataflow is a fully managed streaming analytics service that reduces latency, processing time, cost through autoscaling and real-time data processing.
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Scalable ACID
(This post is coauthored by Alexander Thomson and Daniel Abadi ) It is a poorly kept secret that NoSQL is not really about eliminating SQL ...
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Simple declarative schema migration for SQLite
At my company we use a small SQLite database. We define the schema in a single file with SQL CREATE TABLE statements. If we add tables, columns, or indexes, our application will create them automatically the next time it starts up.
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Explorative modeling: Train on the best of K guesses
What in the world is Explorative Modeling?
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We're Building Postgres in Rust. Using the LLVM of Databases
Turso is becoming the LLVM of databases: one modern, reliable Rust core with many SQL frontends. After rewriting SQLite, we are now building Postgres.
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MapReduce for the Masses: Zero to Hadoop in 5 minutes with Common Crawl
Common Crawl aims to change the big data game with our repository of over 40 terabytes of high-quality web crawl information into the Amazon cloud, the net total of 5 billion crawled pages.
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Introducing dbt + Materialize
Efficient SQL data transformations & real-time analytics with dbt + Materialize: a powerful operational data warehouse combo.
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Three Types of Data
In my work I’ve developed a mental framework related to data modeling, which has helped greatly both when coming up with a model and when making decisions down the road about how to use that model. Here I will establish three different categories of data in software: Constants, State, and Cached Values. By “data” I…
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Let’s Make a Bubble Map
My previous Let’s Make a Map tutorial describes how to make a basic map with D3 and TopoJSON ; now it’s time to cover thematic mapping in the form of a proportional symbol map. The simplest symbol is a circle, or bubble , whose area is proportional to the associated data. In this tutorial, we’ll make a bubble map of…
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Visualizing Time with the Infinity Hour Chart
This is another experiment in visualizing 24-hour cyclical data. My last post explored a method of linear representation (the Double Time Bar Chart). Linear representations have problems when it comes to showing the cyclical nature of time data (ie there is no start or end of a 24 hour cycle). Inspiration When trying…
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Squeezing Performance from SQLite: EXPLAINing the Virtual Machine
The virtual machine? Yep, but not the Java Virtual Machine.
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Fun with SQL: Window Functions in Postgres
Window functions in PostgreSQL are valuable when you want to compare & contrast data between rows. And window functions are key in analytics use cases. This post covers the basic structure of window functions as well as some of the more interesting things you can do with them.
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Thousands of Public Data Sources
We love data, big and small and we are always on the lookout for interesting datasets. Over the last two years, the BigML team has compiled a long list of sources of data that anyone can use. It…
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The Economics of Data Businesses
How data businesses start, and how they keep going, and growing, and growing.
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I stopped worrying and learned to love denormalized tables
Glean is the Enterprise AI platform connected to your enterprise's data. Find, create, and automate anything. Explore what Glean can do for you!
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The Elastic Stack: Future of ELK Platform
Ship context-driven AI applications on Elastic's unified data platform, optimized for accurate and efficient retrieval at petabyte scale. Get started in minutes.