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Jemalloc 5.4.0

https://github.com/jemalloc/jemalloc/releases/tag/5.4.0
133•gkfasdfasdf•5h ago•36 comments

The scourge of x86 emulation

https://fex-emu.com/Scourge-of-emulation/
133•dagmx•5h ago•20 comments

Astra for Law

https://openai.com/index/astra-for-law/
486•vertigoruntime•13h ago•521 comments

Bonsai 2 27B: Near-Lossless Compression in a 9x Smaller Footprint

https://prismml.com/news/bonsai-2-27b
439•JonSchneider•12h ago•127 comments

Bend – A language that blocks AI mistakes via proof, on CPU and GPU

https://bend-lang.com/
458•nicolas-siplis•13h ago•215 comments

Qwen 3.8 Omni Flash

https://qwen.ai/blog?id=qwen3.8-omni-flash
208•jjcm•10h ago•78 comments

When the fractional part of a float fixes your shader

https://crocidb.com/post/when-the-fractional-part-of-a-float-fixes-your-shader/
24•vinhnx•1d ago•1 comments

Hister: A private search engine for the pages you visit and the files you keep

https://github.com/asciimoo/hister
603•bookofjoe•17h ago•163 comments

Pre-Greek: The lost language hidden within Ancient Greek

https://linguisticdiscovery.com/posts/pre-greek/
80•axiologist•6h ago•33 comments

Wax motor

https://en.wikipedia.org/wiki/Wax_motor
402•mhb•1d ago•69 comments

Fujitsu launches made-in-Japan next-generation CPU FUJITSU-MONAKA

https://global.fujitsu/en-global/pr/news/2026/09/14-02
589•my123•2d ago•227 comments

A heap overflow and SSO misconfiguration to compromise OpenAI internal repos

https://www.hacktron.ai/blog/hacking-openai
350•Handy-Man•6h ago•145 comments

Shapelearn Qwen 3.8 27B (13.1 GB VRAM)

https://byteshape.com/blogs/Qwen3.8-27B/
63•syntaxing•7h ago•7 comments

How to Write with an LLM

https://sockpuppet.org/blog/2026/09/17/how-to-write-with-an-llm/
160•joeriddles•11h ago•92 comments

Ask A Monk – A digital wilderness for thoughts with no immediate answer

https://askamonk.online
40•13613288957•8h ago•23 comments

Why Does the Universe Expand?

https://cosmicave.org/2026/09/15/why-does-the-universe-expand/
59•the__alchemist•1d ago•50 comments

Flet 1.0 – Build cross-platform apps in Python

https://flet.dev/
120•absqueued•12h ago•56 comments

Telstra outage: The night a network decided the year was 2006

https://www.netnod.se/blog/telstra-outage-night-network-decided-year-was-2006
52•TMWNN•8h ago•23 comments

Diplodocus, Long Thought Exclusively American, Turns Up in Spain

https://www.sci.news/paleontology/spanish-diplodocus-15064.html
68•embedding-shape•2d ago•37 comments

Speeding up gearhash on ARM64

https://sam.dev/blog/gearhash-on-arm64
15•pranitha_m•2d ago•0 comments

Why I didn’t sign the Fields medallists’ letter

https://gowers.wordpress.com/2026/09/17/why-i-didnt-sign-the-fields-medallists-letter/
256•simianwords•1d ago•366 comments

Apple detectives solved mystery of ancient tree and rewrote the history of fruit

https://www.scientificamerican.com/article/how-apple-detectives-solved-the-mystery-of-an-ancient-...
42•nkurz•1d ago•9 comments

Fixing an NZXT Signal 4K30 part 2: the green/pink video bug

https://www.downtowndougbrown.com/2026/09/fixing-an-nzxt-signal-4k30-part-2-the-green-pink-video-...
32•zdw•4d ago•10 comments

CrowdSec Source Code Leak

https://www.crowdsec.net/blog/crowdsec-statement-source-code-exposure
151•eccgecko•18h ago•48 comments

The most important product decision is what you don't build

https://liamnugent.me/posts/what-you-dont-build/
104•ChrisArchitect•12h ago•36 comments

How do we prevent mathemathics from devolving into the Medieval Era of secrecy?

https://mathoverflow.net/questions/515260/how-do-we-prevent-mathematics-from-devolving-into-the-m...
119•jjgreen•2d ago•105 comments

Show HN: Snapdrop: Instantly share files between devices. No setup, no signup

https://snapdrop.me
75•Capira•12h ago•34 comments

Infinite-Parameter LLMs: Generating and Adapting Weights from Live Data

https://arxiv.org/abs/2609.18842
145•Betelbuddy•16h ago•39 comments

How Uber Protects Against Retry Storms

https://www.uber.com/us/en/blog/protecting-against-retry-storms/
97•iscmt•12h ago•41 comments

Khipu (Quipu) Field Guide

https://www.khipufieldguide.com/
18•SanjayMehta•2d ago•0 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.