# Rhai Extension for DuckDB [](https://duckdb.org/community_extensions/extensions/evalexpr_rhai.html) [](https://github.com/Query-farm/evalexpr_rhai/actions/workflows/MainDistributionPipeline.yml?query=branch%3Av1.5) This extension, `evalexpr_rhai`, adds functions that allow the [Rhai](https://rhai.rs) scripting language to be evaluated within [DuckDB](https://duckdb.org) SQL statements. ## Documentation Full documentation, including installation, usage, the function reference, and cookbook examples, is available at: **[https://query.farm/products/extensions/evalexpr_rhai](https://query.farm/products/extensions/evalexpr_rhai)** ## Installation ```sql INSTALL evalexpr_rhai FROM community; LOAD evalexpr_rhai; ``` ## Development For instructions on building the extension from source and running its tests, see [BUILDING.md](BUILDING.md).