import type { ClickHouseExecutor } from './index.js';
export declare function waitForTable(executor: ClickHouseExecutor, database: string, tableName: string): Promise<void>;
export declare function waitForView(executor: ClickHouseExecutor, database: string, viewName: string): Promise<void>;
export declare function waitForDictionary(executor: ClickHouseExecutor, database: string, dictionaryName: string): Promise<void>;
export declare function waitForColumn(executor: ClickHouseExecutor, database: string, tableName: string, columnName: string): Promise<void>;
/**
 * Polls a query until its rows satisfy `predicate`, then returns them. Use for
 * reads that race DDL/DML propagation on managed ClickHouse (e.g. journal rows
 * written by a just-finished migration that aren't yet visible via FINAL).
 */
export declare function waitForRows<T>(executor: ClickHouseExecutor, sql: string, predicate: (rows: T[]) => boolean, label?: string): Promise<T[]>;
export declare function waitForTableAbsent(executor: ClickHouseExecutor, database: string, tableName: string): Promise<void>;
/**
 * Waits for DDL propagation based on the operation type and key.
 * Called after each DDL statement in the migration execution loop.
 */
export declare function waitForDDLPropagation(executor: ClickHouseExecutor, operationType: string, operationKey: string): Promise<void>;
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