Hacker News: mebcitto

New comment by mebcitto in "Postgres rewritten in Rust, now passing 100% of the Postgres regression tests"

mebcitto — Thu, 09 Jul 2026 09:45:38 +0000

Perhaps pure pgrx extensions would make sense as a first target?

New comment by mebcitto in "Postgres rewritten in Rust, now passing 100% of the Postgres regression tests"

mebcitto — Thu, 09 Jul 2026 07:37:58 +0000

Does it support the extension ecosystem? Or would extensions need to be rewritten as well?

New comment by mebcitto in "Postgres rewritten in Rust, now passing 100% of the Postgres regression tests"

mebcitto — Thu, 09 Jul 2026 07:36:40 +0000

Not sure it’s so simple. I think close to 100% of new ambitious projects are going to leverage AI at least to some degree. I know a couple that have strict no-AI policies (e.g. Zig), but it’s a tiny minority i think.

So how much AI usage does it make it an “AI rewrite”?

Open-source cloud-native Postgres platform

mebcitto — Sat, 27 Jun 2026 12:31:20 +0000

Article URL: https://github.com/xataio/xata

Comments URL: https://news.ycombinator.com/item?id=48697681

Points: 1

# Comments: 0

New comment by mebcitto in "Postmortem: TanStack NPM supply-chain compromise"

mebcitto — Tue, 12 May 2026 09:41:09 +0000

Unfortunately there is currently an issue in pnpm that makes `minimumReleaseAge` difficult: https://github.com/pnpm/pnpm/issues/11068

New comment by mebcitto in "Bun's experimental Rust rewrite hits 99.8% test compatibility on Linux x64 glibc"

mebcitto — Sat, 09 May 2026 19:57:39 +0000

That might be opus 4.7 behaviour because I also get that all the time in the past few weeks. Also complex code base, but likely an order of magnitude simpler than yours.

Postgres on K8s with fast data branching

mebcitto — Sat, 09 May 2026 13:06:54 +0000

Article URL: https://github.com/xataio/xata

Comments URL: https://news.ycombinator.com/item?id=48074691

Points: 3

# Comments: 0

Exposing ZFS volumes over the network via NVMe-oF

mebcitto — Sat, 02 May 2026 11:43:19 +0000

Article URL: https://xata.io/blog/xatastor-zfs-nvme-of-for-millions-of-postgres-databases

Comments URL: https://news.ycombinator.com/item?id=47985542

Points: 4

# Comments: 0

New comment by mebcitto in "Why C Remains the Gold Standard for Cryptographic Software"

mebcitto — Sun, 26 Apr 2026 07:37:52 +0000

This rings true to me. Rust is great but in environments where you need a lot of unsafe anyway, it’s still not memory safe, and adds complexity otherwise.

Xata OSS: Postgres platform with branching, now Apache 2.0

mebcitto — Sat, 18 Apr 2026 20:00:17 +0000

Article URL: https://xata.io/blog/open-source-postgres-branching-copy-on-write

Comments URL: https://news.ycombinator.com/item?id=47819050

Points: 1

# Comments: 0

New comment by mebcitto in "Benchmarking Postgres 17 vs. 18"

mebcitto — Fri, 24 Oct 2025 04:10:27 +0000

That explains why `sync` and `worker` have so similar results in almost all runs. The benchmarks from Tomas Vondra (https://vondra.me/posts/tuning-aio-in-postgresql-18/) showed some significant differences.

New comment by mebcitto in "Fixing UUIDv7 (for database use-cases)"

mebcitto — Thu, 23 Oct 2025 17:33:45 +0000

Yeah, I don't think "fixing" is really the right term here, since this brings a different set of tradeoffs. You don't leak timestamps, you get ok page locality, but you lose the ability to sort by the IDs. I do see how this might be a good choice for a general PK default (i.e. by default, don't leak stuff).

Fixing UUIDv7 (for database use-cases)

mebcitto — Thu, 23 Oct 2025 04:27:00 +0000

Article URL: https://brooker.co.za/blog/2025/10/22/uuidv7.html

Comments URL: https://news.ycombinator.com/item?id=45678169

Points: 4

# Comments: 1

New comment by mebcitto in "Liquibase continues to advertise itself as "open source" despite license switch"

mebcitto — Thu, 16 Oct 2025 13:42:28 +0000

It's Postgres specific but there is https://github.com/xataio/pgroll which takes the automation a step further.

Speeding up pgstream snapshots for PostgreSQL

mebcitto — Thu, 03 Jul 2025 20:17:17 +0000

Article URL: https://xata.io/blog/behind-the-scenes-speeding-up-pgstream-snapshots-for-postgresql

Comments URL: https://news.ycombinator.com/item?id=44458805

Points: 1

# Comments: 0

Database Branching for PostgreSQL: A Comparision

mebcitto — Sat, 14 Jun 2025 07:50:42 +0000

Article URL: https://xata.io/blog/neon-vs-supabase-vs-xata-postgres-branching-part-1

Comments URL: https://news.ycombinator.com/item?id=44274920

Points: 1

# Comments: 0

New comment by mebcitto in "Multigres: Vitess for Postgres"

mebcitto — Tue, 10 Jun 2025 15:31:46 +0000

This is very interesting, thanks for offering to answer questions. I'm curious of two things:

* Are you also considering going the Postgres extension route, like Citus? It is after all the best attempt at sharding Postgres so far.

* If you are willing to share, why not doing this from inside Planetscale? I assume it was at least considered over the years.

New comment by mebcitto in "Pglocks.org"

mebcitto — Sun, 18 May 2025 10:50:20 +0000

Other relevant talks/blogs that I found really useful for understanding Postgres locks are:

* Unlocking the Postgres Lock Manager by Bruce Momjian: https://momjian.us/main/writings/pgsql/locking.pdf

* Anatomy of table-level locks by Gulcin Yildirim Jelinek: https://xata.io/blog/anatomy-of-locks

Xata: Postgres at scale, with copy-on-write branching and anonymization

mebcitto — Sat, 17 May 2025 19:06:14 +0000

Article URL: https://xata.io/blog/xata-postgres-with-data-branching-and-pii-anonymization

Hacker News: mebcitto

New comment by mebcitto in "Postgres rewritten in Rust, now passing 100% of the Postgres regression tests"

New comment by mebcitto in "Postgres rewritten in Rust, now passing 100% of the Postgres regression tests"

New comment by mebcitto in "Postgres rewritten in Rust, now passing 100% of the Postgres regression tests"

Open-source cloud-native Postgres platform

New comment by mebcitto in "Postmortem: TanStack NPM supply-chain compromise"

New comment by mebcitto in "Bun's experimental Rust rewrite hits 99.8% test compatibility on Linux x64 glibc"

Postgres on K8s with fast data branching

Exposing ZFS volumes over the network via NVMe-oF

New comment by mebcitto in "Why C Remains the Gold Standard for Cryptographic Software"

Xata OSS: Postgres platform with branching, now Apache 2.0

New comment by mebcitto in "Benchmarking Postgres 17 vs. 18"

New comment by mebcitto in "Fixing UUIDv7 (for database use-cases)"

Fixing UUIDv7 (for database use-cases)

New comment by mebcitto in "Liquibase continues to advertise itself as "open source" despite license switch"

Speeding up pgstream snapshots for PostgreSQL

Database Branching for PostgreSQL: A Comparision

New comment by mebcitto in "Multigres: Vitess for Postgres"

New comment by mebcitto in "Pglocks.org"

Xata: Postgres at scale, with copy-on-write branching and anonymization

AI Agents and Observability