Top 8 Haskell SQL Projects

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1. postgrest

   1 112 25,115 9.5 Haskell

   REST API for any Postgres database

   

   Project mention: Generate an OpenAPI From Your Database | dev.to | 2024-12-27

   This is especially helpful because Supabase uses PostegREST under the hood, which does not support OpenAPI 3.x. Note that some Postgres specific features like enums are not converted to JSON Schema enums as Sequelize doesn't expose that information.

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3. hstream

   2 1 722 8.0 Haskell

   HStreamDB is an open-source, cloud-native streaming database for IoT and beyond. Modernize your data stack for real-time applications. (by hstreamdb)

   

4. beam

   3 7 596 8.7 Haskell

   A type-safe, non-TH Haskell SQL library and ORM (by haskell-beam)

   

   Project mention: Optimizing a Rust GPU matmul kernel | news.ycombinator.com | 2024-12-06

   I'm not familiar with GPUs specifically, but I have seen this for ORMs that support multiple SQL dialects (e.g. [0]).

   A great technique is called 'tagless final encoding' [1]. Using this technique, you can specify capabilities of an embedded domain-specific language (eDSL) such that you can have a shared (but narrow) common set of features, while allowing specializations of this eDSL to support extra features.

   [0]: https://github.com/haskell-beam/beam

   [1]: https://nrinaudo.github.io/articles/tagless_final.html

5. selda

   4 4 478 0.0 Haskell

   A type-safe, high-level SQL library for Haskell

   

6. squeal-postgresql

   5 5 371 4.6 Haskell

   Squeal, a deep embedding of SQL in Haskell

   

7. rel8

   6 5 158 6.2 Haskell

   Hey! Hey! Can u rel8?

   

8. codd

   7 2 39 6.2 Haskell

   Codd is a simple-to-use CLI tool that applies plain postgres SQL migrations atomically with strong and automatic cross-environment schema equality checks. (by mzabani)

   

9. InfluxDB

   influxdata.com featured

   InfluxDB high-performance time series database. Collect, organize, and act on massive volumes of high-resolution data to power real-time intelligent systems.

   

10. sql-simple-mysql

    8 0 1 0.0 Haskell

    common middle-level sql client.

    

Haskell SQL related posts

• Generate an OpenAPI From Your Database

  4 projects | dev.to | 27 Dec 2024

• Optimizing a Rust GPU matmul kernel

  2 projects | news.ycombinator.com | 6 Dec 2024

• How to use PostgreSQL with Haskell: beam

  2 projects | dev.to | 2 Oct 2023

• How to use PostgreSQL with Haskell: selda

  1 project | dev.to | 2 Oct 2023

• Choosing the right abstraction level for SQLite library.

  2 projects | /r/haskell | 17 Mar 2023

• Announcing codd - a tool to apply postgres SQL migrations

  3 projects | /r/haskell | 3 Mar 2023

• What's your favorite Database EDSL/library in Haskell?

  4 projects | /r/haskell | 28 Feb 2023
• A note from our sponsor - CodeRabbit
  coderabbit.ai | 17 Apr 2025

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