# polytropos-rel8 High-level type-safe PostgreSQL database mapping connecting [polytropos](https://github.com/NadiaYvette/polytropos) open rows to Oliver Charles' `rel8` framework. ## Overview `polytropos-rel8` exposes `PolyRow`, a higher-kinded `Rel8able` schema representation whose columns are derived directly from the row's type-level field specification into an `HProduct` tree. ## Features - **`PolyRow` Table Schema**: Higher-kinded record schema representation implementing `Rel8able`. - **Zero-Tuple Mapping**: Converts directly between `rel8` columnar tables and `SmallArray` row representations without intermediate Haskell tuples. - **Sub-Row Projection**: Slices wide SQL tables into compact view records via `projectRecord`. ## License Dual-licensed under `EUPL-1.2 OR Apache-2.0`.