import type { QueryBatch, QueryExecutionOptions, QueryResult } from './result-types.js';
export interface ConnectionConfig {
    driver: 'postgresql' | 'mysql' | 'sqlite' | 'bigquery' | 'snowflake' | 'duckdb' | 'mssql' | 'file' | 'redshift' | 'fabric' | 'clickhouse' | 'databricks' | 'athena' | 'trino';
    host?: string;
    port?: number;
    database?: string;
    catalog?: string;
    username?: string;
    password?: string;
    token?: string;
    ssl?: boolean;
    filepath?: string;
    projectId?: string;
    account?: string;
    warehouse?: string;
    workgroup?: string;
    schema?: string;
    role?: string;
    region?: string;
    outputLocation?: string;
    httpPath?: string;
    privateKey?: string;
    privateKeyPath?: string;
    privateKeyPassphrase?: string;
    connectionString?: string;
    accessUrl?: string;
    application?: string;
    browserActionTimeout?: number;
    clientRequestMFAToken?: boolean;
    clientStoreTemporaryCredential?: boolean;
    clientSessionKeepAlive?: boolean;
    clientSessionKeepAliveHeartbeatFrequency?: number;
    credentialCacheDir?: string;
    keepAlive?: boolean;
    noProxy?: string;
    oauthAuthorizationUrl?: string;
    oauthClientId?: string;
    oauthClientSecret?: string;
    oauthRedirectUri?: string;
    oauthScope?: string;
    oauthTokenRequestUrl?: string;
    passcode?: string;
    passcodeInPassword?: boolean;
    proxyHost?: string;
    proxyPassword?: string;
    proxyPort?: number;
    proxyProtocol?: string;
    proxyUser?: string;
    queryTag?: string;
    timeout?: number;
    workloadIdentityProvider?: string;
    workloadIdentityAzureClientId?: string;
    workloadIdentityImpersonationPath?: string[];
    waitTimeout?: string;
    byteLimit?: number;
    authMethod?: 'password' | 'key_pair' | 'external_browser' | 'mfa' | 'oauth' | 'oauth_authorization_code' | 'oauth_client_credentials' | 'programmatic_access_token' | 'workload_identity' | 'application_default' | 'service_account_key_file' | 'service_account_json' | 'aws_default' | 'aws_profile' | 'aws_access_key' | 'token';
    authenticator?: string;
    keyFilename?: string;
    serviceAccountJson?: string;
    credentials?: Record<string, unknown>;
    location?: string;
    accessKeyId?: string;
    secretAccessKey?: string;
    sessionToken?: string;
    profile?: string;
    moduleSearchPaths?: string[];
}
export type DriverName = ConnectionConfig['driver'];
export interface TableInfo {
    schema: string;
    name: string;
    type: string;
}
export interface ColumnInfo {
    schema: string;
    table: string;
    name: string;
    dataType: string;
    ordinalPosition: number;
}
export interface DatabaseConnector {
    readonly driverName: DriverName;
    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[]>;
}
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