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[ARTICLE · art-98755] src=discourse.haskell.org ↗ pub= topic=developer-tools verified=true sentiment=· neutral

Hasql v2: the Native Era

Hasql v2, a Haskell database library, is now available and can run natively in Haskell with no external dependencies, or continue using libpq, with no performance degradation and minimal API changes. The release gives users the choice between the two modes, as detailed in a post by the developer explaining the reasoning and implementation.

read1 min views3 publishedAug 16, 2026
Hasql v2: the Native Era
Image: Discourse (auto-discovered)

Hasql v2 is out. It can now run natively in Haskell with no external dependencies, or the same way it always has, using “libpq”. It’s the user’s choice now. No performance degradation and minimal changes to the API.

I’ve written up the post explaining the reasoning and how it was achieved:

23 Likes

What’s the difference between pqi and hpgsql? cc @mzabani

source & further reading
discourse.haskell.org — original article Safety of LLM generated code [ANN] ychr is on Hackage History of DH (Dependent Types in Haskell) contributions
── more in #developer-tools 4 stories · sorted by recency
── more on @hasql 3 stories trending now
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