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- dbdb.io - Database of Databases
- CQL - categorial databases. Open-source CQL and its integrated development environment (IDE) performs data-related tasks — such as querying, combining, migrating, and evolving databases — using category theory
- Database Companies (2024)
Databases
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Pinecone is a vector database written in Rust. Found it via — Rewriting a high performance vector database in Rust; Oct 2022.
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Pebble — a key-value store implemented in Go by CockroachDB.
From this tweet by Phil Eaton, databases since 2017
- Materialize
We put a streaming engine in a database, so your team can build real-time data products without the cost, complexity, and development time of stream processing.
- duckdb
- redpanda (a Kafka replacement; have their own storage layer)
- tigerbeetle (written in ziglang)
- Neon — Serverless, Fault-Tolerant, Branchable Postgres
- Dragonfly ; drop-in replacement for Redis.
- risingwavelabs/risingwave: 🚀SQL stream processing with Postgres-like experience. 🪄More than a modern alternative to Apache Flink.
- Endatabas
- SlateDB - An embedded storage engine built on object storage | SlateDB