Cozo
Data
graph database
SHOW HN2022
425points
67comments
#78of 2,570 in 2022
Top 4%of 2022 by points
How HN took it
LovedMost comments that take a side are positive
16 positive, 17 neutral or asking, 2 mixed, 2 critical, out of 37 comments about the project. Thread score +0.39.
Idea: 8 for, 0 againstDesign: 3 for, 0 againstDocs: 2 for, 0 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Datalog-based embedded design is appealing
From 2 comments
How I have waited for this: A simple, accessible library for graph-like data with datalog (also in a statically compiled language, yay). Have even pondered using SWI-prolog for…
samuell on HNReally nice! I like the design choices of Datalog for the query language and Relations for the data model. This contrasts with the typical choices made for graph databases where…
dwenzek on HN
Graph queries over relational data are useful
From 1 comment
Graph query over relational data, brilliant. I need this yesterday.
mola on HN
Objections
License (AGPL) concerns for embedding in other software
From 2 comments
This is a really impressive piece of work! Congratulations! I note that it appears to be a library, but it's licensed under the Affero GPL. I believe this means that if I link…
ekidd on HNits also odd then re the python bindings being MIT, as the AGPL will convey throughout any aggregation or library usage, as would GPL, the primary delta for GPL vs AGPL is the…
kapilvt on HN
Documentation is scattered and needs examples
From 3 comments
Awesome work, congrats. For someone who never did anything datalog I didn't see an example in the repo and the docs (docs.rs) could need some more content. I hope to see a 1.0 at…
OtomotO on HNGood job! How to transact? The examples only show queries.
pgt on HNI nitpick for the README: consider converting examples from images to code blocks (you can even directly copy-paste them into the code blocks and they should retain their…
dmitriid on HN
Requests
Better documentation and examples
From 2 comments
Awesome work, congrats. For someone who never did anything datalog I didn't see an example in the repo and the docs (docs.rs) could need some more content. I hope to see a 1.0 at…
OtomotO on HNI nitpick for the README: consider converting examples from images to code blocks (you can even directly copy-paste them into the code blocks and they should retain their…
dmitriid on HN
Scalability to large datasets
From 2 comments
How I have waited for this: A simple, accessible library for graph-like data with datalog (also in a statically compiled language, yay). Have even pondered using SWI-prolog for…
samuell on HNThis does look very nice! Especially (from my point of view) having the Python interface. What's the max practical graph sizes you anticipate?
stevesimmons on HN
Questions
How well it scales to large datasets
From 2 comments
How I have waited for this: A simple, accessible library for graph-like data with datalog (also in a statically compiled language, yay). Have even pondered using SWI-prolog for…
samuell on HNThis does look very nice! Especially (from my point of view) having the Python interface. What's the max practical graph sizes you anticipate?
stevesimmons on HN
How it compares to Souffle and differential-datalog
From 2 comments
Very cool! I love the sqlite install everywhere model. Could you compare use case with Souffle? https://souffle-lang.github.io/ I'd suggest putting the link to the docs more…
philzook on HNThis is amazing! Have you looked at differential-datalog? It's rust-based, maintained by VMWare, and has a very rich, well-typed Datalog language. differential-datalog is…
jitl on HN
Whether Datalog can express negation queries
From 1 comment
I thought there was a big class of queries Datalog could not express -- something about negation, queries like "all X for which not Y". Is that not true? Or if it is, is Datalog…
Jeff_Brown on HN
Alternatives named
Datascript
From 1 comment
This look nice ! Datascript seems to be another Datalog engine (in memory only) https://github.com/tonsky/datascript
abc3354 on HN
Souffle
From 1 comment
Very cool! I love the sqlite install everywhere model. Could you compare use case with Souffle? https://souffle-lang.github.io/ I'd suggest putting the link to the docs more…
philzook on HN
differential-datalog
From 1 comment
This is amazing! Have you looked at differential-datalog? It's rust-based, maintained by VMWare, and has a very rich, well-typed Datalog language. differential-datalog is…
jitl on HN
Datomic
From 1 comment
Apache AGE for Postgres
From 1 comment
You mention how Cypher is not much of an improvement over CTE in SQL, I was wondering if you could expand on this point a bit if possible? Some part of me is considering using…
canadiantim on HN