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The most popular blog posts about databases & data on Hacker News. 4,224 posts.
We like the moon The moon is very useful, everyone Everybody like the moon Because it light up the sky at night and it lovely and it makes the tides go and we like it But not as much as cheese We really like cheese
My diatribe about adding support for ParadeDB to Ecto
Posted on: Mon 14 July 2025 by Qi Zhu (Cloudera), Jigao Luo (Systems Group at TU Darmstadt), and Andrew Lamb (InfluxData)
The page "Falsehoods Programmers Believe About Names" covers some of the ways names are hard to deal with in programming. This post will ignore most of those complexities, and deal with the problem of matching up loose user input to a database of names.
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Git’s man-pages state that it’s a stupid content tracker. It’s probably the most used version control system in the world. Which is very strange, since it doesn’t describe itself as being a source control system. And in fact, you can use git to track any
This year, British Column has moved to year-round Pacific Time. How does that affect date data?
Photo by Alex Wong on UnsplashWe all heard that story before: The big monolith which brings so much business value and faithfully serves our customers is starting to slow us down. The product vision is evolving towards reactive features, which means reacting in real time to multiple domain events in the right context…
If someone knows even a little about Spanner, the first question they have is: "How does CockroachDB provide external consistency without atomic clocks?"
Explore research at Microsoft, a site featuring the impact of research along with publications, products, downloads, and research careers.
One of the disclosed pitfalls of TrueCrypt disk encryption is that the master keys must remain in RAM in order to provide fully transparent...
PartyKit now includes a vector database and access to an embedding model. Here’s a guide on how to use them to build a search engine.
I wrote a script to crawl U.S. App Store customer reviews for the top 100 apps from every category (minus duplicates) and compute the most common words in 1-star and 5-star reviews, excluding words that were also common in 3-star reviews.
Today is a really good day for the OpenSearch project. Since its start, the goal has been to quickly produce a version of OpenSearch that’s ready to use in production...
LiteFS v0.3.0 now supports SQLite's write-ahead log journal mode.
A look at some of the current thinking around chunking data for retrieval-augmented generation (RAG) systems.
Data has long been lauded as a competitive moat for companies, and that narrative’s been further hyped with the recent wave of AI startups. Network effects have been similarly promoted as a defensible force in building software businesses. So of course, we constantly hear about the combination of the two: “data…
A Data Lake is a store that hold raw data as a source for data scientists to explore ways to gain information. It should not be accessed by end-users or used for system integration.
Amazon’s recent release of DynamoDB, a database whose name is inspired by Dynamo, the key-value database the distributed datastore they’ve been running in production for a good five to six years now. I think it’s great they’ve finally done it, though from my obverservations, there’s little resemblance of what the…
Safety gives security teams real-time visibility and governance over every AI tool, package, MCP server, and IDE extension across their developer fleet.
At the heart of Meltwater’s and Fairhair.ai’s information retrieval systems lies a collection of Elasticsearch clusters containing billions of social media posts and editorial articles. The index shards in our clusters vary greatly in their access pattern, workload and size which presents some very interesting…
Guide to building up a tile server and map client from scratch with PostGIS and PostgreSQL.
