import * as mysql from 'mysql';
import { ITableDefinition } from '@datahu/core';
export interface IMysqlConfig {
    title: string;
    host: string;
    port: number;
    user: string;
    password: string;
    charset: string;
    database: string;
    ssl: boolean;
    sslCa: string;
    sslKey: string;
    sslCert: string;
    sslRejectUnauthorized: boolean;
}
export declare class MysqlHelper {
    config: IMysqlConfig;
    pool?: mysql.Pool;
    constructor(config: IMysqlConfig);
    createPool(): void;
    query(sql: string): any;
    private getColumnType;
    getTables(): Promise<Array<ITableDefinition>>;
    private getSql;
    getData(tables: Array<ITableDefinition>): Promise<Array<object>>;
    end(): void;
}