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Top 23 Haskell Postgresql Projects
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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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InfluxDB
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ihp
🔥 The fastest way to build type safe web apps. IHP is a new batteries-included web framework optimized for longterm productivity and programmer happiness
Project mention: IHP: Type-safe web framework in Haskell and Nix | news.ycombinator.com | 2025-01-15 -
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
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ArkhamHorror
An unofficial rules-compliant browser based version of Arkham Horror: The Card Game. Not produced, endorsed, or supported by, or affiliated with Fantasy Flight Games.
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shopping-cart-haskell
:gem: Haskell version of the Shopping Cart application developed in the book "Practical FP in Scala: A hands-on approach"
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codd
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)
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postgresql-simple-named
:question: Implementation of named parameters for `postgresql-simple` library
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Haskell Postgresql discussion
Haskell Postgresql related posts
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IHP: Type-safe web framework in Haskell and Nix
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Generate an OpenAPI From Your Database
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Optimizing a Rust GPU matmul kernel
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Top FP technologies
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IHP – The Haskell Framework for Non-Haskellers
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DB2Rest VS postgrest - a user suggested alternative
2 projects | 8 Jan 2024 -
How to use PostgreSQL with Haskell: beam
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A note from our sponsor - SaaSHub
www.saashub.com | 21 May 2025
Index
What are some of the best open-source Postgresql projects in Haskell? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | postgrest | 25,273 |
| 2 | ihp | 5,065 |
| 3 | beam | 597 |
| 4 | hasql | 532 |
| 5 | selda | 478 |
| 6 | squeal-postgresql | 371 |
| 7 | postgresql-simple | 206 |
| 8 | rel8 | 158 |
| 9 | ArkhamHorror | 154 |
| 10 | hasql-th | 112 |
| 11 | postgresql-typed | 85 |
| 12 | postgresql-orm | 77 |
| 13 | shopping-cart-haskell | 64 |
| 14 | postgresql-transactional | 60 |
| 15 | codd | 40 |
| 16 | postgresql-simple-named | 38 |
| 17 | postgresql-pure | 36 |
| 18 | fts | 28 |
| 19 | refurb | 26 |
| 20 | postgresql-libpq | 19 |
| 21 | postgresql-simple-queue | 16 |
| 22 | postgresql-resilient | 15 |
| 23 | postgresql-schema | 13 |
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