r2d2 VS rust-mysql-simple

Compare r2d2 vs rust-mysql-simple and see what are their differences.


A generic connection pool for Rust (by sfackler)


Mysql client library implemented in rust. (by blackbeam)
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r2d2 rust-mysql-simple
1 3
1,407 635
- -
2.3 5.1
8 months ago about 1 month ago
Rust Rust
Apache License 2.0 Apache License 2.0
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of r2d2. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-04-13.


Posts with mentions or reviews of rust-mysql-simple. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-07-22.
  • Diesel 2.0.0 RC1
    11 projects | /r/rust | 22 Jul 2022
    We use libmysqlclient mostly for historic reasons. The mysql crate did just not exist back then when diesel started and rewriting all the internal code now is just something that we did not have the time nor motivation for. That written: Diesel is designed in such a way that connections can be provided by third party crates, even for existing backends. Diesel 2.0 adds explicit documentation for this as part of the connection trait and we are definitively interested to see pure rust implementations for the postges and mysql backend there. Also there is this discussion in the rust-mysql crate repository about a potential diesel integration. If someone is interested in working on this (or the equivalent implementation for postgresql), please reach out to us. We definitively can provide some pointers where to look for stuff and how to generally approach such an implementation. It's likely nothing that's really hard, it just requires someone to spend some work on it.
  • Reviews of the Diesel ORM, are there better alternatives?
    11 projects | /r/rust | 15 May 2022
    I can understand that this can be frustrating and I know that the situation there is not ideal for diesel. There are certainly things to improve there by either providing a bundling support which builds the native library as part of the normal build process or by implementing a pure rust connection implementation. Both is possible with diesel, but requires some work. At least the pure rust connection implementation is something that can be provided by a third party crate now with upcoming diesel 2.0 release. If you are interested in that checkout this and this issue. As for the bundling support: This requires changes in the mysqlclient-sys and pq-sys crates. Again help there is welcome. In the end it makes me sad that some people have repeating decided that a solution to this problem is to write just another crate instead of helping to fix these issues. This just results in everyone have more work to do, as there are now two non-perfect solutions instead of having one slightly improved solution.

What are some alternatives?

When comparing r2d2 and rust-mysql-simple you can also consider the following projects:

mysql_async - Asyncronous Rust Mysql driver based on Tokio.

diesel - A safe, extensible ORM and Query Builder for Rust

redis-rs - Redis library for rust

mysql-proxy-rs - A highly scalable MySQL Proxy framework written in Rust

rust-postgres - Native PostgreSQL driver for the Rust programming language

rusqlite - Ergonomic bindings to SQLite for Rust

rust-etcd - An etcd client library for Rust.


rust-rocksdb - rust wrapper for rocksdb

SQLite - Interface to SQLite

sqlx - 🧰 The Rust SQL Toolkit. An async, pure Rust SQL crate featuring compile-time checked queries without a DSL. Supports PostgreSQL, MySQL, and SQLite.