Show HN: Automatic deduction of FlashAttention kernel from ~25 lines of SQL
0 comments
- Points5
- Comments0
–Rank now
#25Peak rank
1Days on list
–Score · 7d
Oct 30, 2026First seen
On Hacker News
In this demo, we automatically deduce a FlashAttention kernel with ~25 lines of SQL, which just expresses vanilla attention. This is possible due to three portable SQL extensions that we’re building: - xarray-sql: a library that efficiently represents petabyte scale array datasets in the cloud as tables (relations). - ddx: a database extension that adds automatic differentiation in the style of JAX to standard SQL, assuming the above array data model. - einfold: a modular query planner for…
- Points
- 5
- Comments
- 0
- Submitted by
- alxmrs
- Posted
- Oct 30, 2026
- Site
- github.com
Story details from Hacker News ↗ · linked article on github.com.
Trending history
Show HN: Automatic deduction of FlashAttention kernel from ~25 lines of SQL was first seen on Hacker News · Front page on Oct 30, 2026. Since then it has appeared in 12 checks on 1 different day. Its best position was #25 of 30, reached on Oct 30, 22:52 UTC. It dropped off the list after Oct 30, 23:22 UTC.
Rank history
Position on Hacker News · Front page at every check (lower is better).
Last 14 days
Best rank per day (UTC).
25
Oct 26today
Metric history
Platform metric as reported by Hacker News.
Featured in
Archived daily, weekly and monthly lists that include this entry.
Hacker News 1 day, best #25
Questions
Is Show HN: Automatic deduction of FlashAttention kernel from ~25 lines of SQL trending on Hacker News right now?
Not at the moment. It was last on the list on Oct 30, 23:22 UTC, after 1 day of trending.
What is the highest rank Show HN: Automatic deduction of FlashAttention kernel from ~25 lines of SQL reached?
#25 on Hacker News · Front page, on Oct 30, 22:52 UTC. Trendoday checks this list every 15 minutes.
How long has Show HN: Automatic deduction of FlashAttention kernel from ~25 lines of SQL been trending?
It was first seen on Oct 30, 2026 and has been on the list on 1 day (12 checks) since.
How much discussion did it get on Hacker News?
5 points and 0 comments; submitted by alxmrs on Oct 30, 2026.