import Query from "../Query";
export default class Select extends Query {
    private readonly items;
    private joinStatement;
    private isDistinct;
    private groupItems;
    private orderItems;
    private orderAsc;
    constructor(items: Array<any>);
    distinct(): this;
    /**
     *
     * @param params join formatted as [{target: target table, from: field on main table, to: field on joining table, type: type of join}]
     * @returns {Select}
     */
    join(params: Array<any>): this;
    groupBy(items: Array<string>): this;
    orderBy(items: Array<string>, asc: boolean): this;
    toString(): string;
    exec(cback: Function): void;
}