import type { DatabaseConnector, ConnectionConfig, TableInfo, ColumnInfo } from '../connector.js';
import { type QueryBatch, type QueryExecutionOptions, type QueryResult } from '../result-types.js';
export declare class SnowflakeConnector implements DatabaseConnector {
    readonly driverName = "snowflake";
    private connection;
    private sdk;
    connect(config: ConnectionConfig): Promise<void>;
    execute(sql: string, params?: unknown[], options?: QueryExecutionOptions): Promise<QueryResult>;
    stream(sql: string, params?: unknown[], options?: QueryExecutionOptions): AsyncIterable<QueryBatch>;
    disconnect(): Promise<void>;
    ping(): Promise<boolean>;
    listTables(): Promise<TableInfo[]>;
    listColumns(schema?: string, table?: string): Promise<ColumnInfo[]>;
}
export declare function normalizeSnowflakePrivateKeyForAuth(privateKey: string, passphrase?: string): string;
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