hasql-0.7.3.1: A minimalistic general high level API for relational databases

A robust and concise yet powerful API for communication with arbitrary relational databases using SQL.

Features:

• Concise and crisp API. Just a few functions and two monads doing all the boilerplate job for you.
• A powerful transaction abstraction, which provides an automated resolution of conflicts. The API ensures that you're only able to perform a specific set of actions in the transaction context, which allows Hasql to safely resolve conflicting transactions by automatically retrying them. This is much inspired by STM and ST.
• Support for cursors. Allows to fetch virtually limitless result sets in a constant memory using streaming.
• Employment of prepared statements. Every statement you emit gets prepared and cached. This raises the performance of the backend.
• Automated management of resources related to connections, transactions and cursors.
• A built-in connection pool.
• Compile-time generation of templates. You just can't write a statement with an incorrect number of placeholders.
• Ability to map to any types actually supported by the backend.

Links:

• Benchmarks analysis.
• Basic tutorial-demo.
• PostgreSQL backend.