README.md

LeiSQL

LeiSQL is a toy project written by a drunk programmer leiysky.

So far, it only supports limited SQL syntax, and can not even provide data persistence. So it's not recommended to use it in production environment.

Usage

You can build it from source code, with cargo:

cargo build

There is only a single binary executable file leisql in target/debug directory. You can run it with:

./target/debug/leisql

Which will start a LeiSQL server, listening on localhost:5432 by default(and cannot be configured at all).

After starting the server, you can connect to it with psql:

psql -h localhost -p 5432

Then you can run SQL statements in psql, here's an example:

leiysky=> create table t(a int);
Something good happened
leiysky=> insert into t values(1),(2),(3);
Something good happened
leiysky=> select * from t;
 a 
---
 1
 2
 3
(3 rows)

FAQ

Q: Why is it called LeiSQL? A: Lei is my last name, and SQL is a database query language. LeiSQL is a SQL database written by Lei.

Q: Why is it written in Rust? A: I have no idea.

Q: Why the data is gone after restarting the server? A: Because it's a toy project, and I'm too lazy to implement data persistence.

Q: Why is it so slow? A: Ditto.

Q: Why is it so buggy? A: Ditto.

Q: Why is it so ugly? A: I don't think so.

P.S. the last three Q&A are written by Copilot automatically.