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Show HN: SimCity, but with Permits

https://permit.petercai.com/
594•pcai•8h ago•299 comments

Learning to live with Waymos

https://www.newyorker.com/magazine/2026/10/19/were-learning-to-live-with-waymos-its-going-weird
17•njrc•49m ago•9 comments

Feds suspect ransom negotiator ran ShinyHunters extortion site

https://krebsonsecurity.com/2026/10/feds-suspect-ransom-negotiator-ran-shinyhunters-extortion-site/
112•Bender•4h ago•40 comments

Good type against all odds

https://unsung.aresluna.org/good-type-against-all-odds/
20•firloop•48m ago•4 comments

The Other Epidemic: Trying to get off benzodiazepines

https://www.thebeliever.net/the-other-epidemic/
77•gaplong•3h ago•48 comments

Voxtral 3

https://mistral.ai/news/voxtral-3/
539•ilreb•10h ago•143 comments

Google open-sources TorchTPU, a native PyTorch back end for TPUs

https://github.com/google-pytorch/torch_tpu
271•ilreb•9h ago•64 comments

What shall I teach my son?

https://stevekrouse.com/ends
280•Curiositry•9h ago•345 comments

The Future of CSS

https://www.joshwcomeau.com/css/interop-2027/
8•soheilpro•46m ago•0 comments

Academics have a duty to defend open knowledge systems like Wikipedia

https://blogs.lse.ac.uk/impactofsocialsciences/2026/10/19/academics-have-a-duty-to-defend-open-kn...
148•jruohonen•7h ago•79 comments

SlopCodeBench 10/2026 – Opus 5.5, Astra wins overall, xhigh considered harmful

https://github.com/humanlayer/advanced-context-engineering-for-coding-agents/blob/main/benchmarki...
181•dhorthy•5d ago•81 comments

EMudhra Intermediate CA Compromise

https://emudhra.we-have-a-problem.com/
672•galadran•12h ago•340 comments

Sixteen Years After Deepwater Horizon, Deep Sea Life Shows Few Signs of Recovery

https://e360.yale.edu/digest/deepwater-horizon-deep-sea-recovery
208•speckx•10h ago•122 comments

Apple broke an essential presentation feature of iPads

https://teddysvoronos.com/2026-10-19-apple-broke-an-essential-presentation-feature-of-ipads/
500•evanb•14h ago•256 comments

GitHub package firewall

https://github.blog/changelog/2026-10-20-github-package-firewall-in-public-preview/
7•soheilpro•48m ago•0 comments

Ofcom concedes defeat in 4chan case

https://prestonbyrne.com/2026/10/20/ofcom-concedes-defeat/
338•iamnothere•12h ago•253 comments

DeepInfer: High-performance inference framework for DeepSeek models

https://github.com/deepseek-ai/DeepInfer
2145•ggcr•17h ago•838 comments

In Hilbert space, all things are quantumly possible

https://www.quantamagazine.org/in-hilbert-space-all-things-are-quantumly-possible-20260826/
4•unprovable•29m ago•0 comments

Tsrs: A Port of TypeScript to Rust

https://blog.cloudflare.com/typescript-rust-port/
349•hnisjafx40•13h ago•173 comments

Benchmarking Bot Detection Systems Against Modern AI Agents in 2026

https://research.poh.org/bot-benchmarking-2026/
29•mdahardy•9h ago•1 comments

Upcoming Critical PHP Security Release

https://news-web.php.net/php.announce/509
84•xd•6h ago•15 comments

To Make, or to Buy: The Economics of Decision Models

https://pncnmnp.github.io/blogs/economics-decision-models.html
6•pncnmnp•2d ago•0 comments

Google Cloud outage affects almost all banking and other operations in Europe

https://www.neowin.net/news/google-cloud-outage-takes-down-hsbc-revolut-bank-of-scotland-llyods-e...
346•paweladamczuk•16h ago•173 comments

Making Solar Panels with a Microwave [video]

https://www.youtube.com/watch?v=zcWkApGjyGM
43•jackdoe•2d ago•6 comments

How I got over 300 Tor exit nodes removed

https://kaba.cx/posts/20261020_Tor/
327•kabakabakaba•12h ago•78 comments

What the heck is /pkg?

https://anderegg.ca/2026/10/18/what-the-heck-is-pkg
63•GavinAnderegg•2d ago•16 comments

IKEA – 3D Guide

https://sael.net/flatpack/
147•punnerud•10h ago•54 comments

Show HN: Dovepass – can I legally fly a drone along this exact path in SF?

https://dovepass.com
16•nimitmehra•1d ago•2 comments

Meta's GB{2,3}00 Cluster

https://engineering.fb.com/2026/10/19/data-center-engineering/inside-prometheus-meta-gigawatt-sca...
65•stokedmartin•1d ago•26 comments

My Friend Bob Cringely

https://tyma.com/my-cringe-story/
174•zinxq•12h ago•47 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.