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Andy Pavlo joins ClickHouse to establish ClickHouse Labs
I am excited to announce that I am joining ClickHouse, Inc. to establish and lead a new research team at ClickHouse Labs.
Topics /
Databases & Data
The most popular blog posts about databases & data on Hacker News. 134 posts.
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Gemini 4 Carbon is the new #1 on the Artificial Analysis Intelligence Index v5
Google’s Gemini 4 Carbon is the new #1 on the Artificial Analysis Intelligence Index v5, and second only to Claude Opus 5.5 on the Artificial Analysis Coding Agent Index
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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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Ten years of ClickHouse in open source
ClickHouse was released in open source on Jun 15 2016, ten years ago. Since then, it became the most popular open source analytical database with more than 2000 contributors.
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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…
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Bunny Database
Deploy globally, query over HTTP, and scale reads with low latency. Bunny Database lets you build fast without paying the serverless tax.
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Do you even need a database?
We built the same HTTP server in Go, Bun, and Rust using two storage strategies: read the file on every request, or load everything into memory. Then we ran real benchmarks. The results are more interesting than you'd expect.
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Charts built for Chat
We're open sourcing dbt Charts, a declarative language for dashboards, so that even the dashboards you build by chatting with an agent can be governed.
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Backblaze drive stats for Q2 2026
Explore Q2 2026 failure rates across 354,415 Backblaze drives, plus standout models and emerging CMR, SMR, and HAMR storage technologies.
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Cloudflare K2: serverless event streams
Cloudflare K2 is a serverless event streaming service built directly on top of R2 object storage for high-scale data movement and long-term retention. By decoupling producers and consumers at the edge, K2 enables durable, ordered log streams without the operational overhead of traditional broker clusters.
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Asynchronous I/O in DuckDB: Work, Thread, Work
Starting with v2.0, scheduled for fall 2026, DuckDB will support asynchronous reads of Parquet and CSV files. This can significantly speed up queries when synchronous I/O does not saturate the available bandwidth, as is typical in EC2/S3 compute-storage setups.
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Neki – Sharded Postgres
Neki, sharded Postgres by PlanetScale, is now available in platform preview.
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Excel now supports multiple values in a single cell
Throughout Excel's 40-year history, you've only been able to put one value per cell. In this announcement, we're excited to share how that's changing with...
44
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.
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The challenges of soft delete
Exploring alternatives to the archived_at column pattern: triggers, application events, and WAL-based change data capture.
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SQLite in Production: Optimizing WAL Mode, Concurrency, and VFS Layers
Transitioning SQLite from a local development tool to a production-grade database requires a deep understanding of its internal mechanics. This article explores how to tune WAL mode, manage busy handlers, and leverage custom Virtual File System (VFS) layers to achieve ultra-low latency.
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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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What is a database transaction?
What are database transactions and how do SQL databases isolate one transaction from another?
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We scaled PgBouncer to 4x throughput
PgBouncer is single-threaded, so a single process caps out at one CPU core no matter the box size. See how ClickHouse Managed Postgres runs a peered fleet of PgBouncer processes with so_reuseport to scale pooling across every core — with benchmarks showin
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Hunting a 16-year-old SQLite WAL bug with TLA+
This article was written by Marco Manino and Alberto Carretero, dqlite team at Canonical. 1. Anatomy of a SQLite bug Recently SQLite published a new version with a fix to a long-standing bug in the way that the Write Ahead Log (WAL) is checkpointed that leads to the corruption of the database. The important aspect […]
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Postgres transactions are a distributed systems superpower
Keeping workflow state and application data in the same Postgres database lets one transaction update both, simplifying idempotency and atomicity.
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Tin: full-text search for Postgres
TIN is a fast, full-featured, full-text search index for Postgres
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Redis 8.8: New array data structure, rate limiter, performance improvements
Redis 8.8 is now available in Open Source. Explore the new array data type, window counter rate limiter, streams NACK, and more performance-focused updates.
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GLM 5.2 is nearly as accurate as a human book keeper
A real quarter of UK SME books, 59 transactions, 68 minutes, $2.73 of tokens — and a VAT return within 7 pence of the human-prepared one.
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Why DuckDB 2.0 is faster
DuckDB 2.0 alpha vs 1.5.5 on one laptop: recursive CTEs up to 90x, VARIANT 6x faster than JSON text, async I/O 2.4x on S3. What changes, and how to model data to get the speedup. | Reading time: 15 min read
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Looking Forward to Postgres 19: Query Hints
Postgres 19 brings plan advice: the query hints the Postgres community held off on for 15 years. Shaun Thomas covers the 15-year debate, pg_plan_advice, pg_stash_advice, and how to use them.
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Supabase is acquiring Turso
Supabase is acquiring Turso to build the database infrastructure for agentic AI