type Join<K, P> = K extends string ? (P extends string ? `${K}${'' extends P ? '' : '.'}${P}` : never) : never;
type Prev = [never, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ...0[]];
export type Column<T, D extends number = 2> = [D] extends [never] ? never : T extends Record<string, any> ? {
    [K in keyof T]-?: K extends string ? T[K] extends Date ? `${K}` : T[K] extends Array<infer U> ? `${K}` | Join<K, Column<U, Prev[D]>> : `${K}` | Join<K, Column<T[K], Prev[D]>> : never;
}[keyof T] : '';
export type RelationColumn<T> = Extract<Column<T>, {
    [K in Column<T>]: K extends `${infer R}.${string}` ? R : never;
}[Column<T>]>;
export type Order<T> = [Column<T>, 'ASC' | 'DESC'];
export type SortBy<T> = Order<T>[];
export {};