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GrapheneOS in 2027 available on high-end Motorola phones

https://grapheneos.social/@GrapheneOS/117078064184215730
78•exceptione•54m ago•16 comments

OpenLogi

https://openlogi.org/en
974•amatheus•10h ago•265 comments

Air Theremin – a browser theremin you play by waving at your webcam

https://theremin.bizibah.com/
70•gurov•2h ago•38 comments

Geolocating a random island using geometry and CUDA programming

https://yassa9.github.io/osint/gralhix-004/
4•yassa9•21m ago•1 comments

Cerebras CS-4

https://www.cerebras.ai/cs4
343•sunils34•12h ago•214 comments

Being ambitious and being a dad

https://nicholascharriere.com/blog/being-ambitious-and-being-a-dad/
631•nichochar•2d ago•426 comments

Supersonic Trebuchet [video]

https://www.youtube.com/watch?v=Co57SfcT-h0
157•CharlesW•4d ago•64 comments

Rings forged from meteorites may have been fashionable among ancient Greek elite

https://phys.org/news/2026-08-forged-meteorites-fashionable-ancient-greek.html
25•pseudolus•4d ago•10 comments

Palomar: A registry of Lean verified mathematics

https://terrytao.wordpress.com/2026/08/18/palomar-a-registry-of-lean-verified-mathematics/
125•matt_d•9h ago•25 comments

A 3D fruit fly on macOS desktop powered by the real FlyWire connectome

https://github.com/DenisSergeevitch/desktop-fly
315•phoenix120•14h ago•130 comments

Activation Energy is a good model for a lot of things

https://homosabiens.substack.com/p/activation-energy-is-a-good-model
40•surprisetalk•4d ago•8 comments

λλ: A Programming Language for Silicon Photonics

https://dl.acm.org/doi/10.1145/3789240.3829151
41•matt_d•6h ago•11 comments

How does IKEA come up with names for its products?

https://www.ikea.com/se/en/customer-service/knowledge/articles/6f564c4d-2ccc-46de-b643-545a3948dc...
384•NaOH•18h ago•266 comments

The Mojo language (by Modular, now Qualcomm) is now open-source

https://www.modular.com/blog/modcon-announcements
107•flaburgan•4h ago•38 comments

Solo – a .so loader for static Linux binaries

https://github.com/pg83/solo
156•zX41ZdbW•12h ago•181 comments

Finger: the 1971 social network that never died

https://en.andros.dev/blog/54572bc7/finger-the-1971-social-network-that-never-died/
240•andros•1d ago•73 comments

Scientists stunned by children's lung recovery in ultra low emission zone

https://www.bbc.com/news/articles/c1l1r1zne1ro
316•dabinat•11h ago•254 comments

A 25-year-old video patent just expired, ending a legal headache for Linux

https://www.xda-developers.com/25-year-old-brazilian-video-patent-expired-legal-headache-linux/
226•theanonymousone•3d ago•101 comments

A decades-old bug in Knuth's long division (TAOCP Vol II, Algorithm 4.3.1D)

https://kolja.rs/algorithm-d/
7•nk_kolja•5d ago•2 comments

The Vietnam Binh Chau (Chau Tan) Late Tang Wreck

https://www.koh-antique.com/client/tangwreck/tangwreck.html
44•teleforce•11h ago•3 comments

Claude writing a macOS driver for my obscure HP printer built only for Windows

https://twitter.com/kuberwastaken/status/2089377982536388964
233•porridgeraisin•1d ago•176 comments

Win-V combo from Windows on Ubuntu

https://leo98ml.github.io/win-v/
7•havaianaslife•6d ago•5 comments

Turbovec – Google's TurboQuant for vector search in Rust

https://github.com/RyanCodrai/turbovec
265•fittingopposite•18h ago•32 comments

Show HN: Automatically detect and patch walking-dead states in Sierra games

https://github.com/katiahayati/lucasartsifier/
95•wkfauna•10h ago•39 comments

The Amazon tax

https://seths.blog/2026/08/the-amazon-tax/
1227•herbertl•23h ago•639 comments

And then the men with guns tell you to do it anyway

https://shkspr.mobi/blog/2026/08/and-then-the-men-with-guns-tell-you-to-do-it-anyway/
348•_djo_•19h ago•254 comments

Meta's blockbuster trial draws parallels to big tobacco

https://www.economist.com/business/2026/08/18/metas-blockbuster-trial-draws-parallels-to-big-tobacco
271•newsomix9xl•10h ago•221 comments

Apple announces changes for apps in the European Union

https://www.apple.com/newsroom/2026/08/apple-announces-changes-for-apps-in-the-european-union/
228•newusertoday•20h ago•317 comments

Looking for Missed Alarm Bugs in a Formal Verification Tool

https://blog.regehr.org/archives/2124
19•luu•5d ago•1 comments

CUDA Shared Memory Swizzling

https://leimao.github.io/blog/CUDA-Shared-Memory-Swizzling/
55•jxmorris12•5d ago•2 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.