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LBADD

Let's build a distributed database.



LBADD is an experimental distributed SQL database, written in Go.

The goal of this project is to build a database from scratch which is well documented, fully tested, and easy to understand. Implementing as much as possible from the ground up.

It is also currently a work in progress. Feel free to follow along with the development of each component, from parser to pager.

Architecture

The database is made up of a few separate components. These handle the SQL parsing, the intermediary representation generation, the multi-node consensus, the execution of the IR, and the (persistent) storage.

For a brief overview of the purpose of each component, have a look at the overview.

Prior art

Inspiration has been taken from the brilliantly documented codebase of SQLite. However the codebase has been heavily optimized, and is difficult to follow without spending significant time.

Work has also already been done to build a distributed version of SQLite called rqlite. The project uses raft consensus in order to keep nodes consistent across the network.

LBADD aims to replicate these in a single project. LBADD doesn't aim to be nearly as performant as SQLite nor rqlite, and hopefully trades this instead for slightly more clarity and simplicity.

Contributing

Contributors are more than welcome and much appreciated. Please feel free to open a PR to improve anything you don't like, or would like to add. No PR is too small! Go check out our contributing guide for more detailed info about how to get started with a contribution.

License

This project is licensed under the MIT license.

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LBADD: An experimental, distributed SQL database

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