SQLRite , is a simple embedded database modeled off
SQLite, but developed with
Rust. The goal is get a better understanding of database internals by building one.
What I cannot create, I do not understand. — Richard Feynman
Read the series of posts about it:
What would SQLite look like if written in Rust?
- Part 0 - Overview
- Part 1 - Understanding SQLite and Setting up CLI Application and REPL
- Part 2 - SQL Statement and Meta Commands Parser + Error Handling
- Part 3 - Understanding the B-Tree and its role on database design
CREATE TABLE and INSERT Statements
Before you begin, ensure you have met the following requirements:
- Rust (latest stable) – How to install Rust
> ./rust_sqlite -- help SQLRite 0.1.0 Joao Henrique Machado Silva <email@example.com> Light version of SQLite developed with Rust USAGE: rust_sqlite FLAGS: -h, --help Prints help information -V, --version Prints version information
Not checked means I am currently working on.
- CLI and REPL Interface
- Parse meta commands and sql commands.
- Execute simple commands
- Standarized error handling
- Generic validation structure for SQL Commands.
Create TableCommand Parsing
- Improve error handling with https://github.com/dtolnay/thiserror
- Added support for parsing duplicate columns on CREATE TABLE
- Added support for parsing multiple PRIMARY KEY on CREATE TABLE
- In memory BTreeMap indexes initially only for PRIMARY KEYS.
- Simple INSERT queries command parsing.
- Implementation UNIQUE key constraints.
- Improve Error Handling and return without Panic!
- Simple SELECT queries (Single WHERE clause and no JOINS).
- Serialization | Deserialization to and from binary encodings (bincode).
Features that are in the roadmap of the project:
Ideally in order of priority, but nothing set in stone.
- Implement Open command to load database with a command
- INNER JOIN (or sometimes called simple join)
- LEFT OUTER JOIN (or sometimes called LEFT JOIN)
- CROSS JOIN
- The RIGHT OUTER JOIN and FULL OUTER JOIN are not supported in SQLite.
- WAL - Write Ahead Log Implementation
- Implementing transactional ACID properties
- Lock Manager
- Composite Indexing - cost and performance gain analysis
- Benchmarking vs SQLite for comparison
- Server Client / Connection Manager
- Different implementations of storage engines and data structures to optimize for different scenarios
- Write Heavy -
LSM Tree && SSTable
- Read Heavy -
- Write Heavy -
Pull requests are warmly welcome!!!
For major changes, please open an issue first and let's talk about it. We are all ears!
If you'd like to contribute, please fork the repository and make changes as you'd like and shoot a Pull Request our way!
Please make sure to update tests as appropriate.
If you feel like you need it go check the GitHub documentation on creating a pull request.
Code of Conduct
Contribution to the project is organized under the terms of the Contributor Covenant, the maintainer of SQLRite, @joaoh82, promises to intervene to uphold that code of conduct.
If you want to contact me you can reach me at firstname.lastname@example.org.