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Switch Lowering in GCC

https://xoranth.net/gcc-switch/
52•signa11•2h ago•3 comments

Show HN: Marelleo, an open-source story box I built for my kids using ESP32

https://zebra.rodeo/en/blog/marelleo/
46•foOg•3d ago•16 comments

Digital Minimalism

https://vitalik.eth.limo/general/2026/10/31/digital_minimalism.html
38•wilbertliu•3h ago•16 comments

My favourite PowerMac is a Nintendo Wii

https://virtuallyfun.com/2026/10/29/my-favourite-powermac-is-a-nintendo-wii/
309•DHowett•16h ago•89 comments

Cloudflare Turnstile solver library (no headless browser required)

https://github.com/chris124567/cfsolve
207•costco•2d ago•60 comments

The $6.3B Binance hack was pulled off in just 20 minutes

https://www.wired.com/story/the-dollar63-billion-binance-hack-was-pulled-off-in-just-20-minutes/
455•domhudson•21h ago•304 comments

Northflank Breached

https://status.northflank.com
434•js4ever•18h ago•315 comments

Tell HN: Scribd Breached

207•x______________•7h ago•85 comments

Breaking the open web won't stop the bad bots

https://www.techpolicy.press/breaking-the-open-web-wont-stop-the-bad-bots/
262•raybb•3d ago•112 comments

AI, Lean, and the Future of Formal Verification, with Lean Creator Leo de Moura

https://thedataexchange.media/leo-de-moura-lean-aws/
30•datascientist•1d ago•2 comments

Longitudinal Changes InWearable-Captured PhysiologyBefore Sudden Cardiac Death

https://www.jacc.org/doi/epdf/10.1016/j.jaccas.2026.110397
32•brandonb•2d ago•17 comments

Show HN: A working Nintendo in ~1GB of Qwen weights

https://github.com/dbreunig/nesformer
252•dbreunig•17h ago•122 comments

The oldest ice disappears and the Stone Age emerges from it

https://www.sciencenorway.no/archaeology-climate-culture/the-oldest-ice-is-disappearing-the-stone...
152•dxs•14h ago•59 comments

Florilegium: Procedural Flowers in LaTeX

https://github.com/kevinraymond/florilegium
280•nanna•18h ago•47 comments

Infinite Mac: BeOS

https://blog.persistent.info/2026/10/infinite-mac-beos.html
157•ecliptik•14h ago•70 comments

Show HN: To Honor Sir Patrick Stewart, Enjoy the TNG Episode Guessing Game

https://tng.episodle.com/
192•francisofascii•10h ago•54 comments

Backdoor in Claude Code for VS Code extension on the Cursor Marketplace

https://phorion.io/blog/offical-claude-code-vsx-compromise/
893•_chall•1d ago•529 comments

Cisco gives engineer unlimited AI tokens to rewrite legacy code

https://fortune.com/2026/10/30/cisco-president-jeetu-patel-gen-z-27-year-old-unlimited-ai-tokens-...
193•taubek•20h ago•224 comments

The federated code forge

https://tangled.org/blog/forge/
289•zlliang•18h ago•85 comments

Azure's Weakest Link – Five Full Cross-Tenant Compromises

https://www.binarysecurity.no/posts/2026/10/one-root-case
310•swq115•1d ago•58 comments

Jules Verne's Lost Novel

https://blue-continuum.com/verne-paris
111•dnetesn•14h ago•27 comments

Sanstun: A sans-IO, parallel-friendly WireGuard implementation in Rust

https://www.firezone.dev/blog/introducing-sanstun
133•wh33zle•12h ago•24 comments

Double Buffering with Cloudflare Queues

https://bellone.com/technical/double-buffering-with-cloudflare-queues
37•b_llc•2d ago•4 comments

Brief History of PDP Computers

https://entropicthoughts.com/history-of-pdp-computers
26•ibobev•1d ago•11 comments

Trapped in the Technologist Factory

https://ideolalia.com/essays/trapped-in-the-technologist-factory.html
41•luu•2d ago•13 comments

Through Captain Jean-Luc Picard, Patrick Stewart taught us the measure of a man

https://www.bostonglobe.com/2026/10/29/metro/patrick-stewart-picard-star-trek-the-next-generation/
315•apress•13h ago•177 comments

Building an AI-native engineering org

https://twitter.com/sgondala2/status/2115832070274723875
154•sgondala_ycapp•1d ago•181 comments

Turning a solar power system into its own backup

https://arstechnica.com/science/2026/10/turning-a-solar-power-system-into-its-own-backup/
52•PaulHoule•1d ago•19 comments

Sleep framework: A new way for LLMs to retain knowledge in continual learning

https://research.google/blog/the-sleep-framework-a-new-way-for-llms-to-retain-knowledge-in-contin...
226•acossta•2d ago•30 comments

Tree-mounted machines connect to web app to let users knock on wood remotely

https://www.designboom.com/technology/tree-mounted-machines-web-app-users-knock-on-wood-remotely/
89•surprisetalk•3d ago•38 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.