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The Singularity will occur on a Tuesday

https://campedersen.com/singularity
72•ecto•1h ago•28 comments

Mathematicians disagree on the essential structure of the complex numbers

https://www.infinitelymore.xyz/p/complex-numbers-essential-structure
58•FillMaths•1h ago•31 comments

Launch HN: Livedocs (YC W22) – An AI-native notebook for data analysis

https://livedocs.com
5•arsalanb•15m ago•0 comments

Simplifying Vulkan one subsystem at a time

https://www.khronos.org/blog/simplifying-vulkan-one-subsystem-at-a-time
140•amazari•4h ago•44 comments

Clean-room implementation of Half-Life 2 on the Quake 1 engine

https://code.idtech.space/fn/hl2
229•klaussilveira•7h ago•44 comments

Markdown CLI viewer with VI keybindings

https://github.com/taf2/mdvi
10•taf2•33m ago•1 comments

Semaglutide improves knee osteoarthritis independant of weight loss

https://www.cell.com/cell-metabolism/abstract/S1550-4131(26)00008-2
28•randycupertino•1h ago•4 comments

Google Handed ICE Student Journalist's Bank and Credit Card Numbers

https://theintercept.com/2026/02/10/google-ice-subpoena-student-journalist/
130•lehi•37m ago•48 comments

Show HN: Stripe-no-webhooks – Sync your Stripe data to your Postgres DB

https://github.com/pretzelai/stripe-no-webhooks
11•prasoonds•1h ago•3 comments

Show HN: Rowboat – AI coworker that turns your work into a knowledge graph (OSS)

https://github.com/rowboatlabs/rowboat
26•segmenta•1h ago•9 comments

Show HN: I made paperboat.website, a platform for friends and creativity

https://paperboat.website/home/
20•yethiel•1h ago•12 comments

Qwen-Image-2.0: Professional infographics, exquisite photorealism

https://qwen.ai/blog?id=qwen-image-2.0
258•meetpateltech•9h ago•137 comments

Parse, Don't Validate (2019)

https://lexi-lambda.github.io/blog/2019/11/05/parse-don-t-validate/
153•shirian•3h ago•94 comments

Oxide raises $200M Series C

https://oxide.computer/blog/our-200m-series-c
348•igrunert•4h ago•189 comments

Show HN: I built a macOS tool for network engineers – it's called NetViews

https://www.netviews.app
108•n1sni•13h ago•37 comments

The SaaSpocalypse – The week AI killed software

https://www.fintechbrainfood.com/p/the-saaspocalypse
5•no_news_is•32m ago•0 comments

Show HN: Showboat and Rodney, so agents can demo what they've built

https://simonwillison.net/2026/Feb/10/showboat-and-rodney/
9•simonw•32m ago•0 comments

Frontier AI agents violate ethical constraints 30–50% of time, pressured by KPIs

https://arxiv.org/abs/2512.20798
479•tiny-automates•15h ago•309 comments

Show HN: Open-Source SDK for AI Knowledge Work

https://github.com/ClioAI/kw-sdk
9•ankit219•1h ago•1 comments

Jury told that Meta, Google 'engineered addiction' at landmark US trial

https://techxplore.com/news/2026-02-jury-told-meta-google-addiction.html
350•geox•4h ago•269 comments

Redefining Go Functions

https://pboyd.io/posts/redefining-go-functions/
48•todsacerdoti•3h ago•14 comments

Europe's $24T Breakup with Visa and Mastercard Has Begun

https://europeanbusinessmagazine.com/business/europes-24-trillion-breakup-with-visa-and-mastercar...
302•NewCzech•6h ago•288 comments

ClawHub

https://clawhub.ai/
13•druther•44m ago•11 comments

Rust implementation of Mistral's Voxtral Mini 4B Realtime runs in your browser

https://github.com/TrevorS/voxtral-mini-realtime-rs
364•Curiositry•16h ago•51 comments

The US is flirting with its first-ever population decline

https://www.bloomberg.com/news/articles/2026-01-30/trump-immigration-crackdown-could-shrink-us-po...
180•alephnerd•3h ago•541 comments

RLHF from Scratch

https://github.com/ashworks1706/rlhf-from-scratch
47•onurkanbkrc•6h ago•1 comments

I started programming when I was 7. I'm 50 now and the thing I loved has changed

https://www.jamesdrandall.com/posts/the_thing_i_loved_has_changed/
337•jamesrandall•3h ago•266 comments

Discord Alternatives, Ranked

https://taggart-tech.com/discord-alternatives/
581•pseudalopex•23h ago•359 comments

Show HN: Distr 2.0 – A year of learning how to ship to customer environments

https://github.com/distr-sh/distr
50•louis_w_gk•6h ago•13 comments

A method and calculator for building foamcore drawer organisers

https://capnfabs.net/posts/foamcore-would-be-a-sick-name-for-a-music-genre/
24•evakhoury•22h ago•6 comments
Open in hackernews

Anatomy of a SQL Engine

https://www.dolthub.com/blog/2025-04-25-sql-engine-anatomy/
168•ingve•9mo ago

Comments

jimbokun•9mo 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•9mo 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•9mo ago
Not necessarily, I see native speakers completely ignore this a lot.

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

kreetx•9mo 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•9mo 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•9mo ago
I prefer "ess queue ell" these days, but the first DBA I ever worked with pronounced it "squirrel".
gopalv•9mo 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•9mo ago
This is really great!!
gavinray•9mo 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•9mo 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•9mo 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•9mo 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•9mo ago
This is a SQL to X library, though. I don’t think it’s what you need.
gavinray•9mo 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•9mo 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•9mo 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.