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New
The latest blog posts to take off on Hacker News. 2,337 posts.
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OrioleDB Patent: now freely available to the Postgres community
Supabase is explicitly making available a non-exclusive license of the OrioleDB patent to all OrioleDB users in accordance with the OrioleDB license.
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A love letter to the CSV format (2024)
why people pretending CSV is dead are wrong
184
Will Amazon S3 Vectors kill vector databases or save them?
AWS S3 Vectors aims for 90% cost savings for vector storage. But will it kill vectordbs like Milvus? A deep dive into costs, limits, and the future of tiered storage.
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I solved a distributed queue problem after 15 years
Learn how queues make horizontal scaling, scheduling, and flow control easier in cloud systems, and how to make them durable and observable.
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SQLite's Use of Tcl (2017)
The design of SQLite was inspired by the design of TCL, both in the way it handles datatypes and in the formatting of its source code. The index use case for SQLite was in a Tcl/Tk application for an industrial company. From its inception, SQLite has always depended heavily on TCL. These days, SQLite no longer uses…
187
Polars Cloud and Distributed Polars now available
We launch Polars Cloud; the distributed Cloud Architecture to run Polars anywhere
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Data engineering and software engineering are converging
The official JS client for connecting to ClickHouse.
189
Why Semantic Layers Matter (and how to build one with DuckDB)
Learn what a semantic layer is, why it matters, and how to build a simple one with DuckDB and Ibis using just YAML and Python | Reading time: 22 min read
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450× Faster Joins with Index Condition Pushdown
Introduction Readyset is designed to serve queries from cached views with sub-millisecond latency. This post focuses on the cold path—cases where a cache miss forces execution against the base tables. In these scenari...
191
Positron, a New Data Science IDE
We are excited to introduce Positron , a free, next-generation Integrated Development Environment (IDE) for data science by Posit PBC. Positron brings the spectrum of exploration and production work together in one environment so you can move from ideation to insight to application without switching context…
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ClickHouse vs PostgreSQL UPDATE performance comparison
See how ClickHouse’s update speed stacks up against PostgreSQL on the same data and hardware.
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Neki – Sharded Postgres by the team behind Vitess
Sharded Postgres by the team behind Vitess
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Build durable workflows with Postgres
In this blog post, we’ll dive deep into why we chose to build DBOS durable workflow execution on the PostgreSQL DBMS.
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How we replaced Elasticsearch and MongoDB with Rust and RocksDB
Radar offers geocoding, place search, and fraud detection APIs, powered by HorizonDB, a Rust-based engine delivering 20k QPS and sub-millisecond latency.
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A new database on police use of force and misconduct in California
UC Berkeley Journalism offers a two-year Master of Journalism (MJ) degree and a summer minor, preparing students for careers in journalism.
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Representing Python notebooks as dataflow graphs
How and why marimo represents notebooks as dataflow graphs
200
Gemini Embedding: Powering RAG and context engineering
Explore how organizations leverage Gemini Embedding for context-aware AI systems improving performance, accuracy, and efficiency across diverse industries.
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Don't bother parsing: Just use images for RAG
If search is the game, looks matter
202
We made Postgres writes faster, but it broke replication
Exploring LSM tree implementation in PostgreSQL for better write performance.
203
When Sigterm Does Nothing: A Postgres Mystery
A story about a bug with logical replication slot creation on Postgres read replicas
204
Embedding user-defined indexes in Apache Parquet
Posted on: Mon 14 July 2025 by Qi Zhu (Cloudera), Jigao Luo (Systems Group at TU Darmstadt), and Andrew Lamb (InfluxData)
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Big Data was used to see if TCM was scientific (2023)
People love to show that skeptics were wrong about something, especially when national pride hangs in the balance. The South China Morning Post published the following headline on November 3rd: “Scientists find traditional Chinese medicine is based on a complex network of proteins – 3,000 years before modern science.”…
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Supabase MCP can leak your entire SQL database
Indirect prompt injection through support-ticket data lets an MCP-enabled assistant cross trust boundaries and query private tables with Supabase’s privileged service role.
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Analyzing database trends through 1.8M Hacker News headlines
We analyzed 1.8 million Hacker News headlines spanning February 2007 to June 2025 to examine database engine popularity trends. Using camelAI connected to a ClickHouse database, we uncovered which databases the HN...
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Postgres LISTEN/NOTIFY does not scale
Learn why Postgres LISTEN/NOTIFY doesn't scale for high-throughput use cases and what architectural alternatives Recall.ai uses in production.
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Speeding up PostgreSQL dump/restore snapshots
How targeted improvements helped us speed up bulk data loads and complex schemas.
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PlanetScale for Postgres
PlanetScale now supports Postgres