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GrapheneOS has been ported to Android 17

https://discuss.grapheneos.org/d/36469-grapheneos-has-been-ported-to-android-17-and-official-rele...
414•Cider9986•5h ago•168 comments

Running local models is good now

https://vickiboykis.com/2026/06/15/running-local-models-is-good-now/
1035•jfb•11h ago•436 comments

Humiliating IIS servers for fun and jail time

https://mll.sh/humiliating-iis-servers-for-fun-and-jail-time/
100•denysvitali•3h ago•16 comments

SpaceX to buy Cursor for $60B

https://www.reuters.com/legal/transactional/spacex-buy-anysphere-60-billion-2026-06-16/
895•itsmarcelg•15h ago•1352 comments

Wolfram Language and Mathematica Version 15, AI Assistant, Symbolic Music, More

https://writings.stephenwolfram.com/2026/06/launching-version-15-of-wolfram-language-mathematica-...
83•alok-g•3h ago•19 comments

TIL: You can make HTTP requests without curl using Bash /dev/TCP

https://mareksuppa.com/til/bash-dev-tcp-http-without-curl/
276•mrshu•9h ago•145 comments

Mechanical Watch (2022)

https://ciechanow.ski/mechanical-watch/
631•razin•14h ago•114 comments

Calvin and Hobbes and the price of integrity

https://therepublicofletters.substack.com/p/calvin-and-hobbes-and-the-price-of
290•pseudolus•10h ago•138 comments

All about the IBM 1130 Computing System

http://ibm1130.org/
13•jruohonen•2d ago•1 comments

Stop Using JWTs

https://gist.github.com/samsch/0d1f3d3b4745d778f78b230cf6061452
256•dzonga•9h ago•149 comments

GPT‑NL: a sovereign language model for the Netherlands

https://www.tno.nl/en/digital/artificial-intelligence/gpt-nl/
140•root-parent•8h ago•137 comments

The Magic Roundabout of Seattle Area

https://kirklandroundabouts.com
28•DenisM•2d ago•20 comments

Has AI already killed self-help nonfiction books?

https://tim.blog/2026/06/12/has-ai-already-killed-nonfiction/
169•imakwana•9h ago•182 comments

A brief tour of the PDP-11, the most influential minicomputer of all time (2022)

https://arstechnica.com/gadgets/2022/03/a-brief-tour-of-the-pdp-11-the-most-influential-minicompu...
38•jensgk•1d ago•4 comments

But yak shaving is fun (2019)

https://parksb.github.io/en/article/32.html
212•parksb•11h ago•63 comments

A Nipkow Disk Mechanical TV Simulator

https://analogtv.net/mechanical-lab
22•ambanmba•2d ago•4 comments

10Gb/s Ethernet: switching to a Broadcom SFP+ module

https://www.gilesthomas.com/2026/06/10g-ethernet-switching-to-broadcom-sfp-plus
100•gpjt•8h ago•87 comments

Correlated randomness in Slay the Spire 2

https://tck.mn/blog/correlated-randomness-sts2/
279•rdmuser•16h ago•87 comments

Apple's weird anti-nausea dots cured my car sickness

https://www.theverge.com/tech/942854/apple-vehicle-motion-cues-review-really-work
588•neilfrndes•10h ago•192 comments

Qwen-Robot Suite: A Foundation Model Suite for Physical World Intelligence

https://qwen.ai/blog?id=qwen-robotsuite
128•ilreb•13h ago•22 comments

Formal Methods and the Future of Programming

https://blog.janestreet.com/formal-methods-at-jane-street-index/
84•nextos•5d ago•2 comments

Show HN: cuTile Rust: Safe, data-race-free GPU kernels in Rust

https://github.com/nvlabs/cutile-rs
30•melihelibol•6h ago•10 comments

Is Meta destroying its engineering organization?

https://newsletter.pragmaticengineer.com/p/why-is-meta-destroying-its-engineering
422•throwarayes•9h ago•393 comments

Frood, an Alpine Initramfs NAS (2024)

https://words.filippo.io/frood/
29•ethanpil•6h ago•10 comments

NLnet announces funding for 67 more open-source projects

https://nlnet.nl/news/2026/20260616-67-new-projects.html
73•laurenth•3h ago•11 comments

Apple is about to make Hide My Email useless

https://arseniyshestakov.com/2026/06/16/apple-is-about-to-make-hide-my-email-useless/
401•SXX•7h ago•249 comments

Making ast.walk 220x Faster

https://reflex.dev/blog/why-ast-walk-when-you-can-ast-sprint/
93•palashawas•9h ago•16 comments

Show HN: VoiceDraw – Talk system design out loud, the diagrams draw themselves

https://voicedraw.com/
33•ajaypanthagani•7h ago•13 comments

W.H. Auden and James Schuyler in life and literature

https://hedgehogreview.com/web-features/thr/posts/companions-on-parnassus
11•Caiero•3d ago•0 comments

An interview with an Apple emoji designer

https://shadycharacters.co.uk/2026/06/ollie-wagner/
106•nate•3d ago•60 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.