import type { QuerySelectItem } from "./types.ts";
declare function uniqueColumnSelect(table: string, columns: readonly string[]): QuerySelectItem[];
declare function projectPluck<T extends object, K extends keyof T & string>(rows: readonly T[], column: K): Array<T[K]>;
declare function projectPluck<T extends object, K extends keyof T & string, KK extends keyof T & string>(rows: readonly T[], column: K, keyBy: KK): Map<T[KK], T[K]>;
export { projectPluck, uniqueColumnSelect };