EnsoDB

EnsoDB is a lightweight, embedded-first database written in Rust, designed for learning, hacking, and building developer-friendly systems from the ground up.

It focuses on:

• simple internals
• explicit abstractions
• clean APIs
• and a gradual path from local usage → networked database

⚠️ EnsoDB is experimental and currently in early development.

Features

• File-backed storage engine
• Schema-based tables
• Primary key indexing
• Insert / Select / Delete support
• Custom SQL-like DSL (in progress)
• Interactive REPL
• TCP server for remote connections
• Rust-first API design

Installation

Linux

curl -fsSL https://raw.githubusercontent.com/aether-flux/ensodb/main/install/linux/install.sh | sh

Windows

Powershell:

iwr -useb https://raw.githubusercontent.com/aether-flux/ensodb/main/install/windows/install.bat | iex

This starts:

• the EnsoDB REPL
• a TCP server (default: 127.0.0.1:5432)

Example (REPL)

[test_db] > INSERT INTO users VALUES(1, "user_name");
1 row(s) affected

[test_db] > SELECT * FROM users;
| id | name |
|----|------|
| 1  | user_name |

TCP Server

EnsoDB exposes a simple text-based TCP protocol.

• One query per line
• Results returned as text
• Responses terminated with a protocol EOF marker

This allows external clients (CLI tools, SDKs) to connect.

Motivation

EnsoDB exists to:

• understand database internals
• explore Rust system design
• and build a database feels good to use

License

MIT