import type { ClickHouseClient } from "@clickhouse/client";
import type { MigrationLogger } from "./logger.js";
export interface ConnectWithRetryOpts {
    label: string;
    signal?: AbortSignal;
    delays?: readonly number[];
    logger?: MigrationLogger;
}
/**
 * Waits for the ClickHouse server to answer `/ping`, retrying `unreachable`,
 * `indeterminate` and `busy` failures across `delays` and `denied` ONLY for
 * the auth-propagation case (516, up to `AUTH_FAILED_MAX_RETRIES` attempts);
 * every other `denied` fails closed at once with the classification in the
 * message.
 *
 * `/ping` does NOT authenticate — a wrong password or a missing user
 * surfaces at the first real query, not here.
 */
export declare function connectWithRetry(client: ClickHouseClient, opts: ConnectWithRetryOpts): Promise<void>;