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SSH has no Host header

https://blog.exe.dev/ssh-host-header
28•apitman•41m ago•16 comments

Have a Fucking Website

https://www.otherstrangeness.com/2026/03/14/have-a-fucking-website/
92•asukachikaru•2h ago•34 comments

More than 135 open hardware devices flashable with your own firmware

https://openhardware.directory
136•iosifnicolae2•4d ago•12 comments

A Decade of Slug

https://terathon.com/blog/decade-slug.html
527•mwkaufma•10h ago•46 comments

Microsoft's 'unhackable' Xbox One has been hacked by 'Bliss'

https://www.tomshardware.com/video-games/console-gaming/microsofts-unhackable-xbox-one-has-been-h...
611•crtasm•14h ago•219 comments

Mistral AI Releases Forge

https://mistral.ai/news/forge
252•pember•8h ago•39 comments

Python 3.15's JIT is now back on track

https://fidget-spinner.github.io/posts/jit-on-track.html
326•guidoiaquinti•11h ago•147 comments

Get Shit Done: A meta-prompting, context engineering and spec-driven dev system

https://github.com/gsd-build/get-shit-done
267•stefankuehnel•9h ago•133 comments

The pleasures of poor product design

https://www.inconspicuous.info/p/the-pleasures-of-poor-product-design
62•NaOH•4h ago•20 comments

Show HN: Sub-millisecond VM sandboxes using CoW memory forking

https://github.com/adammiribyan/zeroboot
106•adammiribyan•16h ago•19 comments

Leviathan

https://www.gutenberg.org/files/3207/3207-h/3207-h.htm
22•mrwh•3d ago•6 comments

Why AI systems don't learn – On autonomous learning from cognitive science

https://arxiv.org/abs/2603.15381
73•aanet•8h ago•22 comments

A tale about fixing eBPF spinlock issues in the Linux kernel

https://rovarma.com/articles/a-tale-about-fixing-ebpf-spinlock-issues-in-the-linux-kernel/
53•y1n0•5h ago•1 comments

Unsloth Studio

https://unsloth.ai/docs/new/studio
233•brainless•14h ago•49 comments

It Took Me 30 Years to Solve This VFX Problem – Green Screen Problem [video]

https://www.youtube.com/watch?v=3Ploi723hg4
209•yincrash•4d ago•88 comments

Forget Flags and Scripts: Just Rename the File

https://robertsdotpm.github.io/software_engineering/program_names_as_input.html
12•Uptrenda•1h ago•10 comments

I Simulated 38,612 Countryle Games to Find the Best Strategy

https://stoffregen.io/posts/countryle/
7•st0ffregen•1d ago•0 comments

Electron microscopy shows 'mouse bite' defects in semiconductors

https://news.cornell.edu/stories/2026/03/electron-microscopy-shows-mouse-bite-defects-semiconductors
46•hhs•4d ago•9 comments

Launch HN: Kita (YC W26) – Automate credit review in emerging markets

36•rheamalhotra1•10h ago•5 comments

Honda is killing its EVs

https://techcrunch.com/2026/03/14/honda-is-killing-its-evs-and-any-chance-of-competing-in-the-fut...
272•sylvainkalache•2d ago•567 comments

Launch an autonomous AI agent with sandboxed execution in 2 lines of code

https://amaiya.github.io/onprem/examples_agent.html
21•wiseprobe•4h ago•4 comments

Ryugu asteroid samples contain all DNA and RNA building blocks

https://phys.org/news/2026-03-ryugu-asteroid-samples-dna-rna.html
218•bookofjoe•17h ago•121 comments

Arno's Engram Keyboard Layouts

https://github.com/binarybottle/engram
11•so-cal-schemer•4d ago•7 comments

Edge.js: Run Node apps inside a WebAssembly sandbox

https://wasmer.io/posts/edgejs-safe-nodejs-using-wasm-sandbox
122•syrusakbary•11h ago•35 comments

Show HN: Fatal Core Dump – A debugging murder mystery played with GDB

https://www.robopenguins.com/fatal_core_dump/
48•axlan•4d ago•1 comments

Show HN: I built an interactive 3D three-body problem simulator in the browser

https://structuredlabs.github.io/threebodyproblem/
42•amrutha_•4d ago•16 comments

Kagi Small Web

https://kagi.com/smallweb/
727•trueduke•20h ago•197 comments

OpenSUSE Kalpa

https://kalpadesktop.org/
189•ogogmad•16h ago•83 comments

Node.js needs a virtual file system

https://blog.platformatic.dev/why-nodejs-needs-a-virtual-file-system
243•voctor•15h ago•215 comments

'The Secret Agent': Exploring a Vibrant, yet Violent Brazil (2025)

https://theasc.com/articles/the-secret-agent-cinematography
138•tambourine_man•14h ago•68 comments
Open in hackernews

Anatomy of a SQL Engine

https://www.dolthub.com/blog/2025-04-25-sql-engine-anatomy/
168•ingve•10mo ago

Comments

jimbokun•10mo 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•10mo 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•10mo ago
Not necessarily, I see native speakers completely ignore this a lot.

Have you ever considered pronouncing it as squirrel by the way?

kreetx•10mo 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•10mo 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•10mo ago
I prefer "ess queue ell" these days, but the first DBA I ever worked with pronounced it "squirrel".
gopalv•10mo 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•10mo ago
This is really great!!
gavinray•10mo 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•10mo 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•10mo 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•10mo 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•10mo ago
This is a SQL to X library, though. I don’t think it’s what you need.
gavinray•10mo 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.
genai-analyst•10mo 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.

KyleBrandt•10mo 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.