frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Will It Mythos?

https://swelljoe.com/post/will-it-mythos/
129•mindingnever•3h ago•70 comments

Steam Machine launches today

https://store.steampowered.com/news/group/45479024/view/685257114654870245
1494•theschwa•14h ago•1310 comments

The new HTTP QUERY method explained

https://kreya.app/blog/new-http-query-method-explained/
28•CommonGuy•1h ago•3 comments

GLM-5.2 – How to Run Locally

https://unsloth.ai/docs/models/glm-5.2
342•TechTechTech•10h ago•147 comments

VibeThinker: 3B param model that beats Opus 4.5 on reasoning with novel SFT+GRPO

https://arxiv.org/abs/2606.16140
147•timhigins•5h ago•47 comments

Polymarket has flooded social media with deceptive videos by paid creators

https://www.wsj.com/business/media/polymarket-social-media-bets-prediction-market-441cdeb5?st=HhTZY2
227•Vaslo•2d ago•172 comments

In praise of memcached

https://jchri.st/blog/in-praise-of-memcached/
132•j03b•6h ago•49 comments

An Introduction to YOLO26

https://blog.roboflow.com/yolo26/
59•teleforce•5h ago•18 comments

OpenAI DayBreak – GPT-5.5-Cyber

https://openai.com/index/daybreak-securing-the-world/
61•AaronO•6h ago•22 comments

Ultralytics YOLO26: Unified Real-Time End-to-End Vision Models

https://arxiv.org/abs/2606.03748
36•teleforce•5h ago•5 comments

Optocam Zero: a Pi Zero based digital camera made using off the shelf components

https://github.com/dorukkumkumoglu/optocamzero
161•iamnothere•12h ago•41 comments

My Mathematical Regression

https://blog.dahl.dev/posts/my-mathematical-regression/
276•aleda145•3d ago•103 comments

Ask HN: Anthropic banned me from using Claude Code and I don't know what to do

33•ayi•1h ago•21 comments

Cyberdecks, going analog, and convivial technology

https://blog.hydroponictrash.solar/cyberdecks-going-analog-and-convivial-technology/
93•akkartik•3d ago•49 comments

Japanese symbols that speak without words

https://arun.is/blog/japan-symbols/
167•msephton•12h ago•88 comments

Show HN: A pure ARM64 Assembly web server, now on Linux with CGI for no reason

https://github.com/imtomt/ymawky/tree/linux
8•imtomt•3h ago•1 comments

Moebius: 0.2B image inpainting model with 10B-level performance

https://hustvl.github.io/Moebius/
278•DSemba•17h ago•69 comments

Windows NT for GameCube/Wii

https://github.com/Wack0/entii-for-workcubes
59•zdw•3d ago•10 comments

How Lume Works: The Retrieval Primitives

https://deepbluedynamics.com/blog/lume-retrieval-primitives
6•kordlessagain•2d ago•0 comments

Show HN: Oak – Git alternative designed for agents

https://oak.space/oak/oak
182•zdgeier•16h ago•162 comments

Canada plans 'nuclear renaissance' with up to 10 reactors built by 2040

https://www.cbc.ca/news/politics/federal-nuclear-strategy-9.7244509
444•geox•12h ago•295 comments

Package Managers need global hooks

https://captnemo.in/blog/2026/06/17/package-managers-need-hooks/
17•evakhoury•4d ago•28 comments

Improvements to Std:Format in C++26

https://mariusbancila.ro/blog/2026/06/19/improvements-to-stdformat-in-c26/
4•jandeboevrie•2d ago•0 comments

Flock-Powered Police Chiefs Stalking Women Shows Why Warrants Are Needed

https://ipvm.com/reports/police-chiefs-track
491•jhonovich•12h ago•200 comments

Canyon HUD helmet for road riding

https://media-centre.canyon.com/en-INT/266866-new-canyon-heads-up-display-helmet-could-be-a-safet...
92•zh3•2d ago•103 comments

ytr: YouTube Radio for Emacs

https://xenodium.com/ytr-youtube-radio-for-emacs
113•xenodium•10h ago•9 comments

Kyber (YC W23) Is Hiring a Head of Engineering

https://www.ycombinator.com/companies/kyber/jobs/FGmI8mx-head-of-engineering
1•asontha•10h ago

1,700 free online courses from top universities

https://www.openculture.com/freeonlinecourses
173•momentmaker•5h ago•32 comments

Show HN: Got sick of ads, so I made my own logic puzzle site

https://puzzlelair.com/
185•HaxleRose•19h ago•112 comments

Help I accidentally a wigglegram

https://lmao.center/blog/wiggle-accidents/
526•gregsadetsky•3d ago•122 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.