import { QueryParams, WhereCondition, OrderCondition } from './types';
export declare class QueryConfig<T extends {
    [key in string]: any;
}> {
    sqlCommand: string;
    private readonly schema?;
    private readonly table;
    private columnSet;
    private joinSet;
    private whereSet;
    private orderSet;
    private limit?;
    private offset?;
    private valueRefSet;
    constructor({ schema, table, columns, limit, offset }: QueryParams<T>);
    select(column: keyof T | Array<keyof T>): this;
    join(table: string, condition: string): this;
    leftJoin(table: string, condition: string): this;
    rightJoin(table: string, condition: string): this;
    where(whereCondition: WhereCondition<T>): this;
    orWhere(whereConditions: WhereCondition<T>[]): this;
    order(orderCondition: OrderCondition<T>): this;
    private buildWhereConditions;
    get text(): string;
    get values(): any[];
    private buildOrderConditions;
    private get sqlColumns();
    private get sqlFrom();
    private get sqlJoin();
    private get sqlWhere();
    private get sqlOrder();
    private get sqlLimit();
    private get sqlOffset();
}