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AI is forcing us to pay off 40 years of technical debt

https://spectrum.ieee.org/ai-in-cybersecurity-php2shell-vulnerability
86•pseudolus•40m ago•20 comments

Nvidia RTX Spark encrypted firmware slows inference speed to 35% on Linux

https://www.mindstudio.ai/blog/linux-nvidia-rtx-spark-laptop
167•novaRom•3h ago•87 comments

Incident with Pull Requests, Git Operations and Issues

https://www.githubstatus.com/incidents/smtdswd1h2w4
104•kevcampb•2h ago•51 comments

Verification Is Not Knowledge: Science needs more than answers

https://blog.cosmos-institute.org/p/verification-is-not-knowledge
71•ersinesen•3h ago•42 comments

Kitty 0.50

https://sw.kovidgoyal.net/kitty/changelog/#
196•porridgeraisin•3h ago•115 comments

Tell HN: Gemini trains on chat history, even for subscribers (personal accounts)

105•jameslk•2h ago•34 comments

Jelly Sheet

https://mrdoob.github.io/codevember-2026/01/
292•memalign•8h ago•75 comments

A map of 5000+ midterm ads

https://admap.org/
4•Eden09•13m ago•0 comments

Jailbreaking my car's navigation system just so I can change the time

https://blog.nns.ee/2026/11/02/renault-hack/
864•xx_ns•1d ago•327 comments

The lost malloc()

https://napcakes.nekoweb.org/posts/malloc/
70•matt_d•4h ago•20 comments

Stringman, an $800 open-source room scale gripper robot

https://neufangled.com/
643•nharada•19h ago•208 comments

The Internals of PostgreSQL

https://www.interdb.jp/pg/index.html
303•ibobev•14h ago•24 comments

Distinct cellular and genetic differences in colorectal cancer in young patients

https://www.dana-farber.org/newsroom/news-releases/2026/study-reveals-distinct-cellular-and-genet...
84•gmays•9h ago•28 comments

C++26 Disapproved

https://andreasfertig.com/blog/2026/11/cpp26-dis-failed-how-does-cpp-survive/
332•thatxliner•11h ago•228 comments

Show HN: Uncracked City, detective game where you question LLM suspects that lie

https://uncracked.city
83•passkey1510•15h ago•39 comments

Show HN: HackerTV – HN's most-recommended Youtube videos as 24/7 TV channels

https://hackertv.org
361•dsalzman•1d ago•69 comments

Fujifilm to boost tape production 5x as AI fuels archiving demand

https://arstechnica.com/gadgets/2026/10/fujifilm-to-boost-tape-production-5x-as-ai-fuels-archivin...
492•bookofjoe•1d ago•208 comments

Giant canyon on Mars is still tectonically active

https://lamont.columbia.edu/news/giant-canyon-mars-still-tectonically-active-today
102•gmays•10h ago•17 comments

Geoffrey Hinton: it might turn out we were better off without AI

https://www.theguardian.com/uk-news/2026/nov/03/ai-godfather-geoffrey-hinton-better-off-without-ai
85•alkyon•2h ago•57 comments

Hackers hit French national blood bank

https://www.telegraph.co.uk/world-news/2026/11/04/hackers-hit-french-blood-bank/
18•blaze33•23m ago•10 comments

Japan's Jimi 'Mundane' Halloween Costumes of 2026

https://spoon-tamago.com/japan-jimi-mundane-halloween-costumes-2026/
200•zdw•2d ago•33 comments

Arrows to arrows, categories to queries (2025)

https://reasonablypolymorphic.com/blog/arrows-to-arrows/
59•firstbase•9h ago•2 comments

Qwen 3.8 27B on my laptop can interpret model weights, too

https://simonwillison.net/2026/Nov/3/qwen-can-interpret-model-weights/
656•theanonymousone•18h ago•192 comments

Synaptics Appears to Use Legal Threats to Block Open-Source DisplayLink Driver

https://www.phoronix.com/news/Synaptics-Blocks-Vino-Driver
18•snvzz•1h ago•1 comments

Milkman – The Better Alternative to Postman

https://milkman.dev/
52•jplunien•3h ago•53 comments

How I use AI (Oct 2026)

https://ben.stolovitz.com/posts/how-use-ai-oct-2026/
192•citelao•18h ago•229 comments

Postman silently auto-installs AI plugins and attempts to share all API data

https://github.com/postmanlabs/postman-app-support/issues/14370
1343•sidgarimella•19h ago•453 comments

Safari introduces Adaptive Dark Mode in 27.3

https://webkit.org/blog/18541/introducing-adaptive-dark-mode/
455•paddingtone•14h ago•237 comments

There is no posttraining data commons

https://openathena.ai/blog/there-is-no-posttraining-data-commons/
87•lukasschwab•21h ago•24 comments

We're training a Figma-fluent editing model

https://www.figma.com/blog/training-a-figma-fluent-editing-model/
130•gmays•3d ago•56 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.