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DeepSeek open-sources inference optimizations with 60–85% faster generation [pdf]

https://github.com/deepseek-ai/DeepSpec/blob/main/DSpark_paper.pdf
219•aurenvale•1h ago•44 comments

Fintech Engineering Handbook

https://w.pitula.me/fintech-engineering-handbook/
19•signa11•29m ago•0 comments

Previewing GPT‑5.6 Sol: a next-generation model

https://openai.com/index/previewing-gpt-5-6-sol/
1019•minimaxir•17h ago•641 comments

Linux on Older Hardware: The Complete Revival Guide

https://www.fosslinux.com/158206/linux-on-older-hardware-revival-guide.htm
66•tapanjk•2d ago•23 comments

Long Wave radio era set to end with switch-off

https://www.economist.com/britain/2026/06/25/the-bbc-switches-off-its-oldest-service
40•edward•1d ago•54 comments

Beer CSS – Build material design in record time

https://www.beercss.com
13•Seb-C•1h ago•1 comments

WordStar: A Writer's Word Processor (1996)

https://www.sfwriter.com/wordstar.htm
95•droidjj•7h ago•43 comments

Why does kinetic energy increase quadratically, not linearly, with speed? (2011)

https://physics.stackexchange.com/questions/535/why-does-kinetic-energy-increase-quadratically-no...
247•ProxyTracer•12h ago•121 comments

Faster KNN search in Manticore: 2-pass HNSW, batched distances, and AVX-512

https://medium.com/@s_nikolaev/faster-knn-search-in-manticore-2-pass-hnsw-batched-distances-and-a...
12•snikolaev•1d ago•1 comments

OpenTTD 16.0-Beta1

https://www.openttd.org/news/2026/06/25/openttd-16-0-beta1
169•untilted•6h ago•30 comments

U.S. allows Anthropic to release Mythos AI to ‘trusted’ US organizations

https://www.semafor.com/article/06/27/2026/us-releases-powerful-anthropic-model-mythos-to-some-us...
454•bobrenjc93•12h ago•540 comments

AI in mathematics is forcing big questions

https://spectrum.ieee.org/ai-in-mathematics
133•rbanffy•12h ago•101 comments

Jest/Vitest interactive course (runs in the browser)

https://howtotestfrontend.com/courses/jest-vitest-fundamentals
8•howToTestFE•2d ago•5 comments

Fusion Programming Language

https://fusion-lang.org/
80•efrecon•2d ago•37 comments

MicroVMs: Run isolated sandboxes with full lifecycle control

https://aws.amazon.com/blogs/aws/run-isolated-sandboxes-with-full-lifecycle-control-aws-lambda-in...
336•justincormack•4d ago•188 comments

Hellishly Slow Level 13 Deflate Compression

https://kirill.korins.ky/articles/hellishly-slow-level-13-deflate-compression/
63•zX41ZdbW•4d ago•19 comments

The US Army Issued Ocarinas to Soldiers in World War II

https://www.flutetunes.com/articles/my-flute-goes-to-war/
8•tomcam•2d ago•1 comments

U.S. government will decide who gets to use GPT-5.6

https://www.washingtonpost.com/technology/2026/06/26/openai-says-us-government-will-vet-users-its...
1047•alain94040•16h ago•1101 comments

IBM MCGA Gate Array Reverse Engineering

https://github.com/schlae/IBM_MCGA
35•userbinator•5h ago•5 comments

Anatomy of a Failed (Nation-State?) Attack

https://grack.com/blog/2026/06/25/dissecting-a-failed-nation-state-attack/
64•signa11•8h ago•10 comments

Show HN: Hacker News on a train station-style flip board

https://popflame.quickish.space/hn-flipboard/
77•PaybackTony•10h ago•17 comments

Ultrasound imaging of the brain

https://alephneuro.com/blog/ultrasound-brain
285•rossant•23h ago•114 comments

Om

https://daringfireball.net/2026/06/om
389•throw0101a•11h ago•18 comments

We can still stop California's 3D printer surveillance scheme

https://www.eff.org/deeplinks/2026/06/we-can-still-stop-californias-3d-printer-surveillance-scheme
407•hn_acker•13h ago•136 comments

SCC Technical Assistance Program

https://nerocam.com/scc_tap.asp
20•luu•3d ago•1 comments

The gap between open weights LLMs and closed source LLMs

https://blog.doubleword.ai/frontier-os-llm
217•kkm•13h ago•178 comments

Foreign funds help make housing unaffordable: research

https://news.mccombs.utexas.edu/research/foreign-funds-help-make-housing-unaffordable/
82•hhs•11h ago•26 comments

A C++ implementation of a fast hash map and hash set using hopscotch hashing

https://github.com/Tessil/hopscotch-map
93•gjvc•13h ago•16 comments

Show HN: DBOSify – Drop-in Temporal replacement built on Postgres

https://github.com/dbos-inc/dbosify-py
65•KraftyOne•2d ago•9 comments

What Is a Nomogram and Why Would It Interest Me?

https://lefakkomies.github.io/pynomo-doc/introduction/introduction.html#what-is-a-nomogram-and-wh...
124•Eridanus2•17h ago•20 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.