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Show HN: ClickBench Playground – a playground for 110 database systems

https://benchmark.clickhouse.com/playground/
6•zX41ZdbW•2h ago
I created it mostly for testing and exploration, but the main reason was that it became possible after previous work.

Comments

eterm•2h ago
That's actually neat, I can finally do a full sweep of something I found after the recent post about Lobsters migration, I came across a query that evaluates differently in MariaDB and SQLite.

    SELECT CASE WHEN 1 / 5 * 100.0 = 1 * 100.0 / 5 THEN 1 ELSE 0 END AS Huh
In some engines that evaluates to 1 and in some it evaluates to 0.

In some ( oracle ), it doesn't evaluate at all without a trick to bind it to a table.

jauntywundrkind•10m ago
Incredible! This is amazing!

README says it downloads onto a host the dataset, (builds if needed then) runs a snapshotted firecracker microvms that exposes a small /query endpoint. A monitor records and posts results.

https://github.com/ClickHouse/ClickBench/tree/main/playgroun...

Was a little hard to find in the changelog myself (unaided) since there has been such a massive flood of results getting added! Salute to that!! Epic work.

Zed DeltaDB

https://zed.dev/deltadb
132•ahamez•1h ago•55 comments

Discovery Loop

https://www.discoveryloop.com/
396•xtreak29•4h ago•251 comments

Changes at Google DeepMind: Demis Hassabis from CEO to Chair, Jeff Dean departs

https://blog.google/company-news/inside-google/message-ceo/next-chapter-ai-momentum/
256•colesantiago•4h ago•417 comments

Beating GPT-5.6 Sol on retrieval with 100x cheaper open models

https://neon.com/blog/how-castform-neon-beats-frontier-models-on-price-and-efficiency
99•moonikakiss•2h ago•19 comments

Atlassian Rovo Exfiltrates Data, Bypassing Controls

https://www.promptarmor.com/resources/atlassian-rovo-exfiltrates-data
81•hackerBanana•3h ago•28 comments

GNU Hurd News 2026-Q2

https://www.gnu.org/software/hurd/news/2026-q2.html
65•plaguna•3d ago•35 comments

Sula: A Gemini protocol server written in Scryer Prolog

https://sagredo.dev/projects/sula/
17•triska•1h ago•1 comments

Celld: Self-hosted, distributed Durable Objects

https://github.com/denoland/celld
70•calvinfo•3h ago•4 comments

Meta Ran Ads That Contained AI-Generated Child Sexual Abuse Imagery

https://www.wired.com/story/meta-ran-ads-that-contained-ai-generated-child-sexual-abuse-imagery/
55•malshe•47m ago•19 comments

Sycophantic AI Decreases Prosocial Intentions and Promotes Dependence (2025)

https://arxiv.org/abs/2510.01395
40•robin_reala•2h ago•17 comments

Muse Code and Muse Spark 1.2

https://research.meta.ai/blog/introducing-muse-code-and-muse-spark-1-2
66•paulkrush•1h ago•39 comments

What happens if you put work into the second dimension?

https://norbertkozsir.com/posts/work-in-the-second-dimension/
15•abelsm•1h ago•8 comments

The Valley of Webhooks

https://weli.dev/blog/the-valley-of-webhooks/
90•weli•5h ago•37 comments

The Entropy of a Markov Chain

https://chillphysicsenjoyer.substack.com/p/the-entropy-of-a-markov-chain
82•surprisetalk•6h ago•6 comments

Launch HN: HyperProbe (YC S26) – Agents that do read-only debugging in prod

https://www.hyperprobe.co
29•shailendraht•3h ago•20 comments

Discovery of a multicomponent alloy forged by the Hiroshima atomic blast

https://www.science.org/doi/10.1126/sciadv.aeg8299
80•_____k•6d ago•28 comments

Cloudflare OS: an open platform for agents, apps, and work

https://blog.cloudflare.com/cloudflare-os/
383•speckx•6h ago•209 comments

Phishers are hijacking legitimate cloud infrastructure

https://securelist.com/cloud-platforms-in-phishing/120832/
29•lschueller•3h ago•6 comments

Born Against, or why hobby programming communities are against LLM usage

https://blog.fogus.me/llm/born-against.html
79•lladnar•1h ago•88 comments

Goodhart's Law Comes for Every Benchmark You Trust

https://cacm.acm.org/blogcacm/goodharts-law-comes-for-every-benchmark-you-trust/
15•pseudolus•5d ago•7 comments

Aristotle quotes on virtue, knowledge, and happiness

https://www.campion.edu.au/blog/top-25-aristotle-quotes-on-virtue-knowledge-and-happiness/
130•teleforce•6h ago•56 comments

I'm switching my phone from Android to Linux

https://runarcn.no/android-to-linux/
4•speckx•44m ago•1 comments

Building an Advanced Agentic Harness

https://data4sci.com/blog/building-an-advanced-agentic-harness
80•Anon84•6h ago•38 comments

Rubin Observatory's first LSST Camera release: 500k galaxies in the COSMOS field

https://rubinobservatory.org/news/rubin-new-window-cosmos-field
63•MarcoDewey•6h ago•9 comments

Painting with Gaussians

https://yogthos.net/posts/2026-08-03-splat-painter.html
77•yogthos•7h ago•13 comments

The Job Board Is Lying to You

https://nanomicon.com/blog/260730-the-job-board-is-lying-to-you
7•theHocineSaad•1h ago•1 comments

Position: LLMs Can't Jump

https://openreview.net/challenge?redirect=%2Fforum%3Fid%3DklU4737opt
216•theanonymousone•9h ago•147 comments

Faster Than Ninja

https://build2.org/blog/faster-than-ninja.xhtml
75•elasticdog•7h ago•27 comments

Civilian plane crash in New Mexico tied to military GPS blocking

https://www.wired.com/story/a-civilian-plane-crashed-in-new-mexico-was-the-militarys-tech-to-blame/
420•dzdt•9h ago•213 comments

Stop sending me your errors

https://kramkow.ski/article/2026/08/05/stop_sending_me_your_errors.html
22•speckx•3h ago•2 comments