Prela – A Compositional and Controllable Query Language

What it does

CIDR reviewers: please visit the cidr branch of the repository for example queries and steps to reproduce the experiments. Prela is an embedded query language focusing on compositionality and control. Its queries are concise, clear, and fast. It is implemented as a library of query combinators (think parser combinators ), allowing the user to freely intermix queries with code in the host programming language. The implementation follows continuation-passing style , resulting in a core engine under 1k lines of code that compiles to efficient columnar execution. Unlike almost all SQL databases, Prela does not come with its query optimizer, and executes queries exactly as they are written. This…from prela-lang.org

In the maker’s words, at launch

I'm excited to share "take 2" of the Prela query language. After sharing the previous version here, I've received some valuable feedback, the main one being the weird unicode-based syntax throwing people off. Prela now has a more familiar SQL-like syntax while adhering to the algebraic principle, which makes the…

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