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Google will buy half the electricity of a nuclear power plant

https://www.bbc.com/news/articles/c8r6y4me2g6o
36•lukaspetersson•38m ago•29 comments

Shopify is moving from React Native back to Swift and Kotlin

https://shopify.engineering/back-to-native
765•fnthawar2•11h ago•513 comments

More questions about whether researchers can trust OpenAI with unpublished math

https://mathstodon.xyz/@andreasthom/117240535270608201
655•pred_•18h ago•624 comments

YuE2 · Frontier Music with Symbolic Planning

https://map-yue2.github.io/
13•sexy_seedbox•47m ago•2 comments

The Deathray: A simple way for an untrusted site to freeze a Mac

https://auberon.xyz/blog/posts/deathray/
78•auberonedu•5h ago•49 comments

OpenAI Agents API

https://developers.openai.com/api/docs/guides/agents-api/overview
124•aquir•5h ago•78 comments

Don't let anyone take away your big box of cables

https://blog.jim-nielsen.com/2026/hands-off-my-cables/
313•Brajeshwar•9h ago•245 comments

Cognition launches new SWE-2 model, Rivaling Fable 5.1 and GPT-Astra

https://cognition.com/blog/swe-2
350•seelos•9h ago•142 comments

Technique for Manipulating Satellite Photos Now Reveals Ancient Images (2025)

https://spinoff.nasa.gov/Manipulating_Satellite_Photos_Now_Reveals_Ancient_Images
268•gumby•9h ago•42 comments

NTSB issues investigative update on B-767 runway excursion accident in Miami

https://www.ntsb.gov:443/news/press-releases/Pages/NR20260909.aspx
51•mckn1ght•3h ago•77 comments

Music Theory for the 21st-Century Classroom

https://musictheory.pugetsound.edu/mt21c/MusicTheory.html
157•aanet•8h ago•77 comments

Forgejo <=16.0.3 Critical RCE

https://codeberg.org/forgejo/forgejo/src/branch/forgejo/release-notes-published/16.0.4.md
150•weierstass•9h ago•55 comments

Thelio Mira AI Linux Workstation: 192 GB GPU Memory

https://system76.com/workstations/thelio-mira-ai
18•jonifico•2h ago•10 comments

Neki – Sharded Postgres

https://planetscale.com/blog/introducing-neki
198•simon_weber•9h ago•107 comments

Recursion into madness

https://blog.coredump.cx/p/recursion-into-madness
36•surprisetalk•3d ago•7 comments

Rust is tier-1 language at Microsoft

https://rustfoundation.org/media/guest-post-rust-is-tier-1-language-at-microsoft/
597•mmastrac•11h ago•340 comments

Hitachi launches CO2 heat pump water heaters with solar-friendly tariff controls

https://www.pv-magazine.com/2026/09/07/hitachi-launches-co2-heat-pump-water-heaters-with-solar-fr...
283•thelastgallon•1d ago•226 comments

OpenAI’s Navier-Stokes release included a Lean 4 formal proof

https://www.johndcook.com/blog/2026/09/09/formal-method-revolution/
137•ibobev•3h ago•132 comments

What happens when a GPU writes memory

https://blog.doubleword.ai/what-happens-when-a-gpu-writes-memory
44•ibobev•2d ago•1 comments

Detecting and countering misuse of AI: September 2026

https://www.anthropic.com/threat-intelligence-report-september-2026
83•garo-pro•7h ago•148 comments

Customizing my Compaq MX-11800 keyboard

https://blog.webb.page/WM-102
4•NetOpWibby•3d ago•0 comments

JEP 544: Ahead-of-Time Code Compilation

https://openjdk.org/jeps/544
74•Skinney•7h ago•24 comments

iPhone Duo

https://www.apple.com/iphone-duo/
1414•thecosmicfrog•1d ago•2431 comments

Show HN: Vertumnus – printable posters of farmers' market produce seasonality

https://vertumnus.fyi
25•perspectivezoom•3d ago•12 comments

Details.so

https://www.details.so/inspo
3•handfuloflight•53m ago•0 comments

Douglas Hofstadter: Analogy as the Core of Cognition [video]

https://www.youtube.com/watch?v=n8m7lFQ3njk
140•tosh•4d ago•73 comments

Silicon Valley is transforming the military-industrial complex? (2024)

https://costsofwar.watson.brown.edu/paper/how-big-tech-and-silicon-valley-are-transforming-milita...
151•paimapi•9h ago•297 comments

Embedding a bitmap font in your HyperCard stack

https://www.leadedsolder.com/2026/09/08/hypercard-custom-fonts-in-resources.html
14•zdw•2d ago•1 comments

Show HN: A browser IDE for m68000, Z80 assembly (and more), with graphics

https://asm-editor.specy.app/
12•specy•2d ago•1 comments

Proof of Capture: Apple Reference Image, but open source and using steganography

https://merybenavente.me/blog/proof-of-capture
64•merybenavente•5h ago•48 comments
Open in hackernews

Anatomy of a SQL Engine

https://www.dolthub.com/blog/2025-04-25-sql-engine-anatomy/
168•ingve•1y ago

Comments

jimbokun•1y ago
Very nice write up enumerating all the stages of SQL query execution. Interesting even if you don’t care about the DoIt database specifically.
Austizzle•1y ago
Man, this title tripped me up for a minute because I pronounce it with the letters like Ess-Queue-Ell

So the "A" in "A ess-queue-ell" engine felt like it should have been an "An" until I realized it was meant to be pronounced like "sequel"

perching_aix•1y ago
Not necessarily, I see native speakers completely ignore this a lot.

Have you ever considered pronouncing it as squirrel by the way?

kreetx•1y ago
Many (most?) non-native English speakers do pronounce it as ess-queue-ell, especially in their own languages, so yes, the use of "a" instead of "an" does look off from that perspective.
SloopJon•1y ago
When I read SQL for Dummies almost thirty years ago, it made a point of distinguishing "sequel" as a historical predecessor to standard "SQL." As I recall, the author even asserted that SQL is not an acronym/initialism for structured query language. I felt funny saying sequel for the next decade or so, because I wasn't an old timer experienced with this pre-SQL technology.

Now I usually say sequel because everyone else does. That and it rolls off the tongue better than S-Q-L.

jtolmar•1y ago
I prefer "ess queue ell" these days, but the first DBA I ever worked with pronounced it "squirrel".
gopalv•1y ago
This is a great write up about a pull-style volcano SQL engine.

The IR I've used is the Calcite implementation, this looks very concept adjacent enough that it makes sense on the first read.

> tmp2/test-branch> explain plan select count() from xy join uv on x = u;

One of the helpful things we did was to build a graphviz dot export for the explains plans, which saved us days and years of work when trying to explain an optimization problem between the physical and logical layers.

My version would end up displayed as SVG like this

https://web.archive.org/web/20190724161156/http://people.apa...

But the calcite logical plans also have that dot export modes.

https://issues.apache.org/jira/browse/CALCITE-4197

th0ma5•1y ago
This is really great!!
gavinray•1y ago
Calcite also has a relatively-unknown web tool for plan visualization that lets you step through execution.

It's a method from "RuleMatchVisualizer":

https://github.com/apache/calcite/blob/36f6dddd894b8b79edeb5...

Here's a screenshot of what the webpage looks like, for anyone curious:

https://github.com/GavinRay97/GraphQLCalcite/blob/92b18a850d...

ignoreusernames•1y ago
I recommend anyone who works with databases to write a simple engine. It's a lot simpler than you may think and it's a great exercise. If using python, sqlglot (https://github.com/tobymao/sqlglot) let's you skip all the parsing and it even does some simple optimizations. From the parsed query tree it's pretty straightforward to build a logical plan and execute that. You can even use python's builtin ast module to convert sql expressions into python ones (so no need for a custom interpreter!)
Abde-Notte•1y ago
Second this - building even a simple engine gives real insight into query planning and execution. Once parsing is handled, the core ideas are a lot more approachable than they seem.
albert_e•1y ago
Sorry for slight digression.

In a larger system we are building we need a text-to-sql capability for some structured data retrieval.

Is there a way one could utilize this library (sqlglot) to build a multi-dialect sql generator -- that is not currently solved by directly relying on a LLM that is better at code generation in general?

LtdJorge•1y ago
This is a SQL to X library, though. I don’t think it’s what you need.
gavinray•1y ago
You can use an LLM to generate query-builder expressions from popular libraries in whatever language.

For example, on the JVM there is jOOQ, which allows you to write something like:

  select(field("foo"), avg("bar")).from(table("todos"))
And then it will render dialect-specific SQL. It has very advanced emulation functionality for things like JSON aggregations and working around quirks of dialects.

Alternatively, you can ask an LLM to generate a specific dialect of SQL, and then use jOOQ to parse it to an AST, and then render it as a different dialect, like:

    val parser= DSL.using(SQLDialect.POSTGRES).parser()
    val parsedQuery = parser.parseQuery(postgresQuery)
    val renderedMySQL = DSL.using(SQLDialect.MYSQL).renderInlined(parsedQuery)
    println(renderedMySQL)
Unsure if functionality like this exists in other Query Builder libraries for other languages.
KyleBrandt•1y ago
Using dolthub's go-mysql-server for Grafana's upcoming SQL expressions feature (private preview in Grafana 12, but in the OSS version with a feature toggle).

GMS lets you provide your own table and database implementations, so we use GMS to perform SQL queries against Grafana's dataframes - so users can join or manipulate different data source queires, but we don't have to insert the data into SQL to do this thanks to GMS.

genai-analyst•1y ago
another digression here... sorry... i see you're trying to diy text-to-sql—at some point you're gonna hit a bunch of hiccups. like, the model writes a query that “almost” works but joins the wrong tables, or it assumes column names that don’t exist, or it returns the wrong agg because it misread the intent. and retries won’t always save you—it’ll just confidently hallucinate again.

we’ve been through all of that at wobby.ai we ended up building a system where the data team defines guardrails and reusable query templates, so the agent doesn’t just make stuff up. it can still handle user prompts, but within a safe structure. if you want to save yourself from debugging this stuff endlessly, might be worth checking out wobby.ai.