121
ICE using Palantir tool that feeds on Medicaid data
ICE is using a Palantir tool that uses Medicaid and other government data to stalk people for arrest. This is exactly the kind of data privacy abuse that EFF has been warning about.
New
The latest blog posts to take off on Hacker News. 2,337 posts.
122
Introduction to PostgreSQL Indexes
Who’s this for Basics How data is stored in disk How indexes speedup access to data Costs associated with indexes Disk Space Write operations Query planner Memory usage Types of Indexes Btree Hash BRIN GIN GiST & SP-GiST Conclusion Who’s this for This text is for developers that have an intuitive knowledge of what…
123
Pandas 3.0
We're excited to announce the release of pandas 3.0.0. This major long-awaited release brings significant improvements to pandas, but also features some potentially breaking changes.
124
Anthropic Economic Index report: economic primitives
New metrics of AI usage provide a rich portrait of interactions with Claude in November 2025, just prior to the release of Opus 4.5.
125
Scaling PostgreSQL to power 800M ChatGPT users
An inside look at how OpenAI scaled PostgreSQL to millions of queries per second using replicas, caching, rate limiting, and workload isolation.
126
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.
127
The challenges of soft delete
Exploring alternatives to the archived_at column pattern: triggers, application events, and WAL-based change data capture.
128
129
ClickHouse acquires Langfuse
Our goal continues to be building the best AI engineering platform
130
Releasing rainbow tables to accelerate Net-NTLMv1 protocol deprecation
Mandiant aims to lower the barrier for security professionals to demonstrate the insecurity of Net-NTLMv1.
131
Native ZFS VDEV for Object Storage (OpenZFS Summit)
We presented MayaNAS at OpenZFS Developer Summit 2025, introducing objbacker.io—a native ZFS VDEV for object storage. No FUSE, direct kernel-to-SDK integration achieving 3.7 GB/s throughput.
132
How much of my observability data is waste?
After a decade in observability, one question kept coming back: how much of your data is waste?
133
Message Queues: A Simple Guide with Analogies (2024)
This guide explains message queues with analogies: databases, warehouses and post offices.
134
Elasticsearch was never a database
Elasticsearch is a search engine, not a database. Here's why it falls short as a system of record.
135
MongoDB Server Security Update, December 2025
The following is an update on the security vulnerability identified in December 2025.
136
Using Vectorize to build an unreasonably good search engine in 160 lines of code
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.
137
Research team digitizes more than 100 years of Canadian infectious disease data
The new, publicly accessible database contains more than a million infectious disease incidence counts dating back to 1903.
138
$50 PlanetScale Metal Is GA for Postgres
We've lowered the entry price for using PlanetScale Metal to $50 and added more flexibility in storage-to-compute ratios.
139
SQLite JSON at full index speed using generated columns
One of the coolest patterns in SQLite—store raw JSON documents, create virtual generated columns using json_extract, add indexes, and query JSON at full B-tree index speed.
140
Litestream VFS
Query your SQLite database any time, anywhere
141
Pg_ClickHouse: A Postgres extension for querying ClickHouse
Today, we’re pleased to release pg_clickhouse, an Apache 2-licensed PostgreSQL extension to transparently execute analytics queries on ClickHouse directly from PostgreSQL.
142
Jepsen: NATS 2.12.1
NATS is a popular streaming system. Producers publish messages to streams , and consumers subscribe to those streams, fetching messages from them. Regular NATS streams are allowed to drop messages. However, NATS has a subsystem called JetStream , which uses the Raft consensus algorithm to replicate data among nodes…
143
We collected 10k hours of neuro-language data in our basement
Over the last 6 months, we collected ~10k hours of data across thousands of unique individuals. As far as we know, this is the largest neuro-language dataset in the world. [1] See here , here , here , here , and here (discussion only, no data available) for some of the larger datasets. See recent papers discussing the…
144
State of AI: An Empirical 100T Token Study with OpenRouter
Read OpenRouter's 2025 State of AI report — an empirical 100 trillion token study of real LLM usage, model trends, and developer insights.
145
Super fast aggregations in PostgreSQL 19
See how PostgreSQL 19 speeds up aggregations by aggregating before joins, with a benchmark showing over 5x faster execution.
146
Data-at-Rest Encryption in DuckDB
DuckDB 1.4 ships database encryption capabilities. In this blog post, we dive into the implementation details of the encryption, show how to use it, and demonstrate its performance implications.
147
148
AA-Omniscience v1.1: Knowledge and Hallucination Benchmark
Compare AI model performance on AA-Omniscience v1.1: Knowledge and Hallucination Benchmark. A benchmark measuring factual recall and hallucination across various economically relevant domains.
149
A race condition in Aurora RDS
See how we diagnosed and confirmed an AWS Aurora RDS race condition impacting failovers.
150
Backblaze Drive Stats for Q3 2025
Read the Q3 2025 Drive Stats report to see the latest annualized failure rates, and an analysis of how we define failure in the first place.