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Introducing System One Models and Jev

https://typesafe.ai/blog/introducing-system-one-models-and-jev
1292•albelfio•12h ago•378 comments

Apple Reference Image: A New Approach for Verified Photography

https://security.apple.com/blog/apple-reference-image/
208•imwally•6h ago•135 comments

Show HN: An e-ink frame that hears birds and draws them as 1800s illustrations

https://github.com/arnegiacomo/fugleramme
1597•arnemunthekaas•19h ago•200 comments

Show HN: I made a flight simulator, except you're just a passenger

https://inflightsimulator.com
155•rkotcher•1d ago•66 comments

An update on Wayback Machine access

https://blog.archive.org/2026/09/15/an-update-on-wayback-machine-access/
511•ChrisArchitect•14h ago•264 comments

Negativland, Culture Jamming, and the Art of Making Something New

https://blog.archive.org/2026/09/11/negativland-culture-jamming-and-the-art-of-making-something-new/
73•bananaboy•5h ago•18 comments

Doing Everyone Else's Job

https://yosefk.com/blog/doing-everyone-elses-job.html
43•luu•1d ago•19 comments

Gemini 3.8 Live and 3.8 Live Extended Thinking

https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-3-8-live-gemini-3-...
393•leumon•14h ago•260 comments

Datamimic – don't let your coding agent invent its own test world

https://github.com/rapiddweller/datamimic
31•ake2l•3h ago•5 comments

Building a Linux GPU Driver for the M4 Mac Mini in One Month

https://codyho.dev/blog/gpu-driver/
291•ADevWithAnIdea•12h ago•169 comments

Recreating Voodoo Graphics and a Late-1990s Gaming PC on an FPGA

https://nand2mario.github.io/posts/2026/zsst-voodoo/
116•zdw•9h ago•30 comments

German Rheinmetall open-sources its Battlesuite connected weapon system protcol

https://rheinmetall.github.io/onboardapi-documentation/9.10.0/index.html
210•summarity•11h ago•72 comments

Why I'm still bearish on LLMs after Navier-Stokes

https://dank.systems/posts/2026-09-15-ai-bear.html
206•jaykru•14h ago•215 comments

We got admin access to Baseten's production GitHub

https://www.strix.ai/blog/baseten-harbor-github-pat-takeover
271•bearsyankees•14h ago•149 comments

A software thing I built: GPS on a 25MHz 486-SX

https://forum.vcfed.org/index.php?threads/a-software-thing-i-built-gps-on-a-25mhz-486-sx.1258966/
14•JPLeRouzic•2h ago•6 comments

Intelligence per Watt: Measuring Intelligence Efficiency of Local AI

https://arxiv.org/abs/2511.07885
26•pythonic_hell•1d ago•0 comments

Saving Jet Fuel

https://tech.marksblogg.com/scikit-decide-openap-optimal-flight-planning.html
88•marklit•9h ago•41 comments

MartyPC – A Cycle-Accurate IBM PC/XT Emulator

https://github.com/dbalsom/martypc
9•yitchelle•2h ago•1 comments

Show HN: Capsule – Single-file web apps that save their data into SQLite

https://withcapsule.app/
322•bashtian•18h ago•129 comments

Learning to solve hard problems in RL for LLMs by never giving up

https://mnoukhov.github.io/posts/ngu/
86•natolambert•13h ago•4 comments

Let's make quality the norm again

https://www.forbrukerradet.no/short-life/
377•ingve•22h ago•385 comments

EU Floats Canada Becoming the Bloc's First 'Associate Member'

https://www.bloomberg.com/news/articles/2026-09-16/eu-proposes-canada-become-the-bloc-s-first-ass...
8•helsinkiandrew•12m ago•3 comments

Chopping up books when they're physically too big

https://attainablefelicity.mattkirkland.com/20260915/cut-up-your-books.html
166•matt_kirkland•13h ago•155 comments

Jean-Pierre Serre turns 100

https://mathshistory.st-andrews.ac.uk/Biographies/Serre/
131•jzox•11h ago•24 comments

An interactive world map of the stories cultures have told

https://originmap.sunnyguha.com/
42•momentmaker•2d ago•4 comments

Stay discoverable in search while disallowing AI training

https://blog.cloudflare.com/accountable-mixed-use-ai-crawlers/
63•djfergus•5h ago•37 comments

The Beauty of Roundabouts

https://gruhn.me/blog/2026-09-14/
45•ngruhn•2d ago•62 comments

Suspected sabotage causes major Netherlands rail disruption

https://www.bbc.com/news/articles/c8ly49w9g1edo
479•choult•22h ago•424 comments

WangNet – 1.8 MB, zero-dependency Numberwang adjudication in 11 languages

https://github.com/GraafHenk/numberwang
149•Liogra123•12h ago•52 comments

Most people prefer traditional architecture

https://www.worksinprogress.news/p/do-people-prefer-traditional-architecture
332•alihm•1d ago•285 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.