asami
datascript
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asami | datascript | |
---|---|---|
6 | 24 | |
626 | 5,352 | |
0.6% | - | |
0.0 | 7.7 | |
about 2 years ago | 5 days ago | |
Clojure | Clojure | |
Eclipse Public License 1.0 | Eclipse Public License 1.0 |
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asami
- Ask HN: What are some 'cool' but obscure data structures you know about?
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Ask HN: Why are relational DBs are the standard instead of graph-based DBs?
Unlike some other commenters, I agree that graph models are usually a better fit for most data than relational models. There's been some interesting work in recent years developing this idea: in the Clojure world there's Datomic, XTDB, and a host of competitors, all of which build on work from Semantic Web/SPARQL/triplestores and logic programming. Some are even intended to be used as primary datastores: they support some amount of schema and constraints, have well-defined consistency and ACID guarantees, etc. This makes them unlike graph databases like Neo4J and others, which fill an architectural role more like Elasticsearch as a read-optimization tool. Here's an interesting talk making a case for triple-based databases.
- Introduction to the Asami Graph Database
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How to query Datomic, Datascript, Asami, or other graph databases
Despite the documentation that exists, I've heard many people who have been confused about how to query Datomic, Datascript, Asami, or other graph databases. So I've made an attempt at explaining it https://github.com/threatgrid/asami/wiki/Introduction
- Introduction (To Graph Databases)
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Asami
The first Graph implementation for Asami was a simple in-memory data structure, described in my ClojureD talk. The code for this appears in asami.index. This file started much smaller (as referenced above), but has since expanded with the needs extended functionality, such as transactions, and transitive closure operations.
datascript
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Datalog in 100 lines of JavaScript (2022)
Hi pests, I don't think the criticism in the comments gives a full picture.
I wrote about a particular flavor of datalog, in common use today. [1] [2]. The earliest representation I know, which matches the syntax of my essay, was in SICP [3]
There's another, more academic form of datalog, which looks a lot more like prolog. Both have lots of similarities: both systems have a set of facts and rules. Both systems have can take a partially filled fact or rule, and find all matching facts. The more academic flavors of Datalog are useful for general logic, and particularly powerful for recursive questions. The variant I showed is more tailed for database queries.
[1] https://github.com/tonsky/datascript
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XTDB on Mobile Possible?
There is also datascript as a similar option.
- FoundationDB: A Distributed Key-Value Store
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wotbrew/relic: FRP for Clojure(Script)
What's the use case for relic? Sounds similar to https://github.com/tonsky/datascript ?
- Introduction to Datalog
- Clojure Turns 15 panel discussion video
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Show HN: Cozo – new Graph DB with Datalog, embedded like SQLite, written in Rust
This look nice !
Datascript seems to be another Datalog engine (in memory only)
https://github.com/tonsky/datascript
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Ergonomic inline SQL as a Python library
Inspired by past work: LINQ, inline-python, crepe, DataScript, Riffle.
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Working with large maps
An in-memory database like Datascript may be worth looking into. Otherwise you could take an indexing approach: put all the data into one big map indexed by some unique key, and have a bunch of supplementary indexes that are updated on insertion.
- Obsidian Dataview: Turn Obsidian Vault into a database which you can query from
What are some alternatives?
crux - General purpose bitemporal database for SQL, Datalog & graph queries. Backed by @juxt [Moved to: https://github.com/xtdb/xtdb]
datahike - A durable Datalog implementation adaptable for distribution.
datalevin - A simple, fast and versatile Datalog database
10000-markdown-files - 10,000 markdown files. Useful for stress testing note-taking tools.
Apache AGE - Graph database optimized for fast analysis and real-time data processing. It is provided as an extension to PostgreSQL. [Moved to: https://github.com/apache/age]
xtdb - An immutable database for application development and time-travel data compliance, with SQL and XTQL. Developed by @juxt
naga - Datalog based rules engine
grakn - TypeDB: the polymorphic database powered by types
Neo4j - Graphs for Everyone