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Jeff – Jev-compatible 0.8B decision models, trained at home, ~30 ms

https://github.com/firelex/jeff
346•firelex•7h ago•137 comments

U.S. Strategic Petroleum Reserve Falls to Lowest Level Since 1982

https://oilprice.com/Latest-Energy-News/World-News/US-Strategic-Petroleum-Reserve-Falls-to-Lowest...
77•thelastgallon•1h ago•43 comments

1996 chat room simulator connected to Win95 and System 7 web desktops

https://lolchat.rip/
48•henrychannel•3h ago•28 comments

Pirating the Pirates

https://mubi.com/en/notebook/posts/pirating-the-pirates
452•piotrgrabowski•11h ago•235 comments

MicroLLM Lab – Try 7 tiny LLM's in the browser

https://stateofutopia.com/experiments/microllmlab/
161•logicallee•8h ago•67 comments

12,000-year-old Göbeklitepe burials explain scattered bones

https://archaeologymag.com/2026/09/gobeklitepe-burials-hundreds-of-scattered-bones/
95•yusufaytas•2d ago•25 comments

Tank Body Problem

http://www.jimsitu.com
30•jimbooonooo•3h ago•7 comments

California farmers are struggling to sell grapes as demand for wine drops

https://www.kqed.org/news/12101534/california-farmers-are-struggling-to-sell-grapes-as-demand-for...
92•randycupertino•7h ago•234 comments

Scientists solve 1840s space weather mystery

https://arstechnica.com/science/2026/09/scientists-solve-1840s-space-weather-mystery/
76•gumby•7h ago•39 comments

ESP32S3 cluster running 1.58-bit (BitNet) Language model

https://github.com/Low-Zi-Hong/ESP32s3-LLM-Cluster
46•nkko•6h ago•5 comments

Sonnet 5.5

https://www.anthropic.com/claude-sonnet-5-5
640•D2OQZG8l5BI1S06•9h ago•434 comments

Hijacking the PS5's RTMP stream

https://yashgarg.dev/posts/hijacking-ps5-rtmp-stream/
214•ibobev•12h ago•67 comments

World Labs Is Joining AMD

https://www.worldlabs.ai/blog/amd-announcement
218•mfiguiere•7h ago•84 comments

Bluegraph – Explore NOAA buoy data, rebuilt in 3D from measured spectra

https://bluegraph.io/
10•polytap•2h ago•2 comments

Kids turned low-traffic NPR Spotify comments into a secret group chat

https://www.thisamericanlife.org/897/transcript
324•simonpure•12h ago•188 comments

How to win a beer with high-dimensional statistics

https://jamiesimon.io/blog/how-to-win-a-beer-with-high-dimensional-statistics/
29•jamie-simon•2d ago•3 comments

The Art Forger Who Became a National Hero

https://priceonomics.com/the-art-forger-who-became-a-national-hero/
16•bookofjoe•2d ago•2 comments

What is the best shape of a city? Modelling effect of urban form on distance

https://journals.sagepub.com/doi/10.1177/23998083261458842
21•rustoo•2d ago•11 comments

Does Reddit have an astroturfing problem? What the data suggests

https://www.petervijeh.com/projects/reddit-astroturf
144•p-s-v•14h ago•168 comments

Updated Google Maps shows destruction of the city of Rafah

https://twitter.com/AliAbunimah/status/2103890594137309425
288•slowin•12h ago•157 comments

Nvidia wants to put a watchdog chip next to every AI agent

https://www.cnbc.com/2026/09/28/nvidia-releases.html
120•jonbaer•12h ago•156 comments

It's Time to Investigate the AI Labs

https://calnewport.com/its-time-to-investigate-the-ai-labs/
343•ibobev•7h ago•132 comments

Show HN: HN.watch – Videos of all Hacker News posts

https://hn.watch/
138•mrborgen•12h ago•84 comments

What reversing, modernising old games tells us about the economic impact of AI

https://this.os.isfine.org/blog/posts/what-reverse-engineering-and-modernising-an-old-war-game-te...
80•keeda•2d ago•34 comments

Cf: The Agentic CLI for the Cloudflare API

https://blog.cloudflare.com/cloudflare-cf-cli-launch/
131•macleos•12h ago•56 comments

Behold the pawpaw

https://www.cbc.ca/radio/thecurrent/pawpaw-tropical-fruit-canada-9.7356882
59•BiraIgnacio•1d ago•23 comments

Show HN: Destroy Any Website with Stickman

https://destroy.spritefusion.com/
116•HugoDz•11h ago•28 comments

Blend and Haul: Fertilizer Blending Simulator

https://game.wedgworth.com/
5•paltman•1d ago•2 comments

Coding is not solved

https://blog.alexewerlof.com/p/coding-is-not-solved
456•firstSpeaker•13h ago•458 comments

When did Google get so weird?

https://sancho.bearblog.dev/google-weird/
1855•sancho-panza•1d ago•1041 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.