frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Auto mode is now the default in Claude Code

https://claude.com/blog/auto-mode-default-in-claude-code
43•sbehere•1h ago•7 comments

What Happened to HackerOne?

https://blog.teknogeek.io/posts/what-happened-to-hackerone/
119•hipparchus•2h ago•37 comments

Long-Run Effects of H-1B Immigration on the U.S. Economy (July 2026)

https://www.nber.org/papers/w35560
22•ryzvonusef•58m ago•3 comments

How I use LLMs to learn complex topics

https://laurentiugabriel.github.io/blog/articles/how-i-use-llms-to-learn/
521•laurentiurad•9h ago•293 comments

Show HN: Voice driven murder mystery, Interview AI suspects with your voice

https://www.whodunnitai.com/
20•MrRowTheBoat•1h ago•2 comments

Turn satellite imagery into a paper globe you fold yourself

https://foldingglobes.com/
21•dango2506•2h ago•3 comments

Run Android ARM64 VR APKs on Apple Vision Pro

https://github.com/shinyquagsire23/Klepton
15•LorenDB•1h ago•0 comments

How We Pushed CDC into Postgres

https://www.snowflake.com/en/blog/engineering/postgres-to-snowflake-replication-mirroring/
57•craigkerstiens•4h ago•6 comments

Taxi drivers rarely die of Alzheimer's

https://theconversation.com/taxi-drivers-rarely-die-of-alzheimers-how-complex-mental-maps-and-spa...
227•jader201•13h ago•171 comments

Ask HN: What are you working on? (August 2026)

209•david927•11h ago•742 comments

ATProto for Distributed Systems Engineers

https://atproto.com/articles/atproto-for-distsys-engineers
35•LelouBil•3d ago•5 comments

Picophysics: Single file physics for games on platforms like N64, PSX, DC

https://gitlab.com/Kazade/picophysics
37•klaussilveira•4d ago•10 comments

Nearest Pint

https://knowwhereconsulting.co.uk/maps/pubs/
6•bookofjoe•5d ago•0 comments

Cool URIs Don't Change (1998)

https://www.w3.org/Provider/Style/URI
211•Klaster_1•14h ago•51 comments

Tuxedo No. 2 – Cocktail recipes

https://tuxedono2.com
72•smartmic•8h ago•16 comments

"The Persian MâR-Nâmeh Or, the Book for Taking Omens from Snakes" (1892)

https://publicdomainreview.org/collection/marnameh/
46•Thevet•3d ago•5 comments

The tragedy of the commons, AI edition

https://www.economist.com/britain/2026/08/06/the-tragedy-of-the-commons-ai-edition
95•simonpure•9h ago•53 comments

New Zealand lost its music media, and what we're building to replace it

https://propelmusic.co.nz/articles/the-sound-went-quiet-nz-music-media
93•berghoffer•8h ago•55 comments

Everything you do is being recorded

https://www.theatlantic.com/technology/2026/05/ai-wearable-surveillance-countermeasures/687203/
246•ike_usawa•17h ago•196 comments

Andrew Wiles on proving Fermat’s Last Theorem (1995) [video]

https://www.youtube.com/watch?v=GS7CxAtV5Ks
42•jackdoe•3d ago•31 comments

The Ambition Project

https://www.betonit.ai/p/the-ambition-project
21•herbertl•5h ago•1 comments

Japanese court overturns Red RAW video patent

https://www.dpreview.com/news/panasonic-did-what-apple-sony-and-nikon-couldnt-overturn-a-red-raw-...
74•anigbrowl•4h ago•11 comments

OpenChamber: An Agentic Development Environment

https://openchamber.dev/
128•hexomancer•11h ago•71 comments

The German Mittelstand

https://kieranvelasquez.substack.com/p/on-the-german-mittelstand
21•Michelangelo11•3d ago•4 comments

Windows 11's built-in Weather app wastes more than 1 GB of RAM

https://www.notebookcheck.net/Windows-11-s-built-in-Weather-app-wastes-more-than-1-GB-of-RAM.1364...
438•akyuu•13h ago•364 comments

Reviving a four year old reMarkable 2

https://oskrim.github.io/hardware/2026/08/09/remarkable-over-ssh.html
135•oskrim•17h ago•90 comments

How Golden Is Silence, Actually?

https://www.newyorker.com/magazine/2026/08/10/silence-kate-mcloughlin-book-review
52•tintinnabula•3d ago•26 comments

Taylor Farms recalls salsa and guacamole over salmonella risk

https://www.cnbc.com/2026/08/09/taylor-farms-recalls-salsa-and-guacamole-over-salmonella-risk.html
29•cramer4next•2h ago•6 comments

Show HN: A Project Oberon System version running on RISC-V instead of RISC-5

https://github.com/rochus-keller/OberonSystem/tree/op2-rv32
110•Rochus•16h ago•16 comments

Touring the Consensus, Six Months In

https://theconsensus.dev/blog/2026/08/05/touring-the-consensus-six-months-in.html
19•tosh•4d 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.