Lucas Cavalcanti & Edward Wible - Exploring four hidden superpowers of Datomic

What Hacker News said

Recommends sgrove · 2015-07 · on “Om Next – David Nolen [video]”

It's worthwhile watching Nubank's talk on how they manage these things with Datomic on the backend [0] - providing a "complete" (filtered) database to the client, http caches for queries based on tx-time, and syncing mobiles data via transactions-since. Takes care of said concerns nicely - I'm just implementing this stuff today however, so I'm not sure how well it'll work in practice. [0] - [this video]

Cites dmix · 2015-01 · on “Clojure 2014 Year in Review”

Not mentioned in the article but most interesting to me this year is how these guys are "building a bank from scratch in Brazil with Datomic and Clojure": [this video] The future looks bright for the language, especially with applications like this.

Cites onetom · 2015-09 · on “AWS US East is experiencing high error rates on several services”

nadam said 10 seconds, not minutes. we are using the starter version combined with dynamodb in production and we found the payment structure very clear; no obfuscation whatsoever, unlike a microsoft or adobe pricing matrix ;) (it's made by the same guy who made the very open source clojure programming language, btw, and he is very much against obfuscation) anyway, it's a competitive advantage for those guys' who are building a bank on top of it in brazil ( [this video] ). we feel we can avoid writing a lot of authorization and audit log code by using datomic, maybe u can save such work too.

Cites hardwaresofton · 2018-08 · on “Idempotence: What is it and why should I care?”

I do remember Datomic and I think it's a great tool but I fell out of love with the Clojure ecosystem and JVM-based languages as a whole and don't think I'll be getting back into it/them. I do remember wanting to check out Datomic (I believe after seeing a talk on how it was being used at a bank in southern america?[0]), but I found it unreasonably hard to find and download/experiment with the community edition -- compare this to something like Postgres which is much more obvious, more F/OSS compliant (I understand that they need to make money) and Datomic doesn't really look that appealing to me these days. At this point in my learning of software craftmanship I can't do non-statically type

Cites Chyzwar · 2021-09 · on “Ask HN: What could a modern database do that PostgreSQL and MySQL can't”

1. High performance read/write of Scylla/Cassandra with high availability[1]. It has some limitations for OLTP workloads and require careful planning. Postgres without Citus is not really HA and even then companies would often invent custom sharding/cluster management system. 2. Powerful graph query language like Cypher. It might not perform well in real life, but my personal experience left me amazed[2]. There is a number of issues with SQL that could be addressed[3], but current standard is way too much prevalent. 3. Zero impedance mismatch between database and application representation. In database like Smalltalk GemStone it is really seamless experience for developer to write database c

Cites stuarthalloway · 2024-05 · on “Jepsen: Datomic Pro 1.0.7075”

Ed Wible is a founder of Nubank and chose Datomic. He and Lucas Cavalcanti gave a talk on it at Clojure/conj 2014. [this video]