import { AnyType } from '@lightdash/common';
import { Connection, Submittable } from 'pg';
import { Readable } from 'stream';
interface QueryStreamConfig {
    batchSize?: number;
    highWaterMark?: number;
    rowMode?: 'array';
    types?: AnyType;
}
declare class QueryStream extends Readable implements Submittable {
    cursor: AnyType;
    _result: AnyType;
    handleRowDescription: Function;
    handleDataRow: Function;
    handlePortalSuspended: Function;
    handleCommandComplete: Function;
    handleReadyForQuery: Function;
    handleError: Function;
    handleEmptyQuery: Function;
    constructor(text: string, values?: AnyType[], config?: QueryStreamConfig);
    submit(connection: Connection): void;
    _destroy(_err: Error, cb: Function): void;
    _read(size: number): void;
}
export default QueryStream;
//# sourceMappingURL=PgQueryStream.d.ts.map