/**
 * Arrow → row conversion shared by every engine adapter.
 *
 * DuckDB returns Arrow tables; drizzle / consumers want plain row objects.
 * `toArray()` yields Arrow row proxies; `.toJSON()` materializes them, but
 * some Arrow versions skip `.toJSON` and yield plain objects already.
 */
interface ArrowTableLike {
  toArray: () => Array<Record<string, unknown> & {
    toJSON?: () => Record<string, unknown>;
  }>;
}
declare function arrowToRows(result: unknown): Record<string, unknown>[];
export { ArrowTableLike, arrowToRows };