export default abstract class Query {
    protected type: string;
    protected whereStatement: string;
    protected whereParams: Array<string>;
    protected queryParams: Array<string>;
    protected tableName: string | undefined;
    protected static safeOperators: Array<string>;
    constructor(type: string);
    table(table: string): Query;
    where(key: string, value: Array<any> | any, operator: string): Query;
    orWhere(key: string, value: Array<any> | any, operator: string): Query;
    andWhere(key: string, value: Array<any> | any, operator: string): Query;
    private parseWhere;
    exec(cback: Function): void;
    abstract toString(): string;
}