frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Kimi K3.1 Pro and K3.1 Pro Highspeed

https://www.kimi.ai/blog/kimi-k3-1-pro
799•Jowsey•11h ago•484 comments

Twelve years of distributed SQLite

https://philipotoole.com/twelve-years-of-distributed-sqlite/
81•otoolep•3h ago•8 comments

Apple Music 404 Not Found

https://music.apple.com/this-url-doesnt-exist
664•frizlab•16h ago•210 comments

Local Wikipedia: Wikipedia, but only for things a half hour walk from you

https://edjefferson.com/localwiki/
1311•sohkamyung•1d ago•228 comments

CVE Tracker

https://cve.0xosprey.com/
135•Group_B•7h ago•55 comments

Dessa: Conversation Model trained only on speech

https://block.xyz/dessa
306•dsr12•9h ago•114 comments

Bringing uv and ty together

https://astral.sh/blog/uv-ty-integration
70•Ravencentric•3d ago•18 comments

Today, we hacked what we'd set out to hack: the iPhone

https://blog.calif.io/p/iphone
792•pavel_lishin•12h ago•526 comments

The Quake Fan who built the map editor everybody uses

https://funcarena.com/articles/the-quake-fan-who-built-the-map-editor-everybody-uses
29•klaussilveira•1d ago•1 comments

The Real Kevin Bacon

https://pudding.cool/2026/10/kevin-bacon/
268•xnx•3d ago•75 comments

Canadians are running out of time to oppose Bill C-22

https://www.eff.org/deeplinks/2026/10/canadians-are-running-out-time-oppose-dangerous-c-22-survei...
370•hn_acker•1d ago•203 comments

One Man's Pan Am 747 Replica [video]

https://www.youtube.com/watch?v=vAFwHGGfPz4
10•Teever•7h ago•0 comments

C vs. C#: racing VLC's Gaussian blur

https://martinfinkel.com/blog/gaussian-blur-c-vs-csharp/
44•martz•2d ago•1 comments

The past, present, and future share a show floor at Pinball Expo 2026

https://arstechnica.com/gaming/2026/10/the-past-present-and-future-share-a-show-floor-at-pinball-...
20•civicpivot•2d ago•3 comments

Show HN: Corgi, a helpful {agent, terminal} multiplexer

https://corgi.computer/
60•eiopa•9h ago•13 comments

Air Purifiers as White Noise Machines

https://www.jefftk.com/p/air-purifiers-as-white-noise-machines
90•luu•11h ago•102 comments

Alzheimer's breakthrough: 2 hrs of sleep restored without clearing brain plaques

https://www.sciencedaily.com/releases/2026/10/261018084421.htm
52•amichail•2h ago•12 comments

UUIDv7: Timestamps aren’t time-ordered and other oddities

https://alexsci.com/blog/uuidv7-is-weird/
118•ibobev•12h ago•102 comments

Evolving Threat: http2shell is an RCE in Node, Python, and more

https://nitter.click/AikidoSecurity/status/2113759110625906950?__galadriel=lPmlGl9id4oAd5UeBwMhlY...
128•cowlevel•5h ago•68 comments

A Bicycle Journey Across Brazil to Find a Vanishing Savanna

https://e360.yale.edu/features/2026-film-contest-second-place-cerrado
36•throwaway2037•2d ago•9 comments

Elon Musk Acquires $1B Stake in CNN's Parent Company

https://symby.com/news?_cid=101605177&preferredLanguage=en
6•Alien1Being•10m ago•1 comments

Rise of collagen-eating microbes may help explain gaps in the fossil record

https://www.cam.ac.uk/research/news/rise-of-collagen-eating-microbes-may-help-explain-gaps-in-the...
23•gmays•3d ago•0 comments

How is music possible

https://www.henrikkarlsson.xyz/p/music
95•rafaelc•12h ago•68 comments

Rune 1.3: adds TypeScript, a Helix editor, Kitty graphics and OSC-7501

https://rune.build/blog/rune-1-3-release
44•ernestrc•9h ago•11 comments

Is this the new cyber normal?

https://drew.silcock.dev/blog/is-this-the-new-cyber-normal/
151•drewsberry•17h ago•168 comments

Animations for System Builders

https://brooker.co.za/blog/2026/10/23/animations.html
50•KraftyOne•11h ago•3 comments

DNS: A Replacement for Finger

https://altchan.org/sh/42
34•Bender•9h ago•25 comments

A whirlwind tour of systemd-nspawn containers (2025)

https://quantum5.ca/2025/03/22/whirlwind-tour-of-systemd-nspawn-containers/
36•ibobev•8h ago•7 comments

Securing our frontier model training environment

https://openai.com/index/securing-our-frontier-model-training-environment/
93•pretext•9h ago•99 comments

Show HN: Impossible Machines: declaratively program the physical world

https://www.impossiblemachines.xyz
74•bhaprayan•1d ago•17 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.