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Database Entry

EchoDB

Abandoned

EchoDB is an in-memory, multi-versioned key-value embedded DBMS.

Website
https://crates.io/crates/echodb[01]
Source Code
https://github.com/surrealdb/echodb[02]
Tech Docs
https://docs.rs/echodb/latest/echodb/[03]
Developer
Country of Origin
GB
Start Year
2021
End Year
2025
Project Type
Open Source
Written in
Rust
License
Apache v2

Database Entry

EchoDB

Abandoned

EchoDB is an in-memory, multi-versioned key-value embedded DBMS.

History

The system's source code repository has not been updated since 2025 and is now considered abandoned.

Data Model

Key-Value

Indexes

B+Tree

Query Execution

Tuple-at-a-Time Model

Query Interface

Custom API

Storage Architecture

In-Memory

Storage Model

N-ary Storage Model (Row/Record)

System Architecture

Embedded
Compatible Systems
SurrealDB SurrealDB
Embeddings
SurrealDB SurrealDB
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Citations

3 sources
  1. https://crates.io/crates/echodb crates.io Dead — Check Archive
  2. GitHub - surrealdb/echodb: An embedded, in-memory, immutable, copy-on-write, key-value database engine · GitHub github.com
  3. echodb - Rust docs.rs
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