import * as mysql from 'mysql2/promise';
import { PoolOptions } from 'mysql2';
import { BatchUpdateItem, ObjectType, OrignDataBaseClient } from '../DataBaseClient';
export type UpdateResult = {
    fieldCount: number;
    affectedRows: number;
    insertId: number;
    serverStatus: number;
    warningCount: number;
    message: string;
    protocol41: boolean;
    changedRows: number;
};
export declare class MysqlClient implements OrignDataBaseClient {
    pool: mysql.Pool;
    constructor(config: PoolOptions);
    getPool(): mysql.Pool;
    getConnection(): Promise<mysql.PoolConnection>;
    printSql: boolean;
    disablePrintSql(): void;
    enablePrintSql(): void;
    private logSql;
    private formatQueryResult;
    private executeSqlByConnection;
    executeSql<T>(sql: string, arrayValues?: any[]): Promise<T>;
    getTableMeta(tableName: string): Promise<Record<string, any>[]>;
    private queryUpdate;
    batchUpdate(batchUpdates: BatchUpdateItem[]): Promise<number[]>;
    private transToObject;
    find<T>(entityClass: ObjectType<T> | null, sql: string, arrayValues?: any[]): Promise<T[] | any[]>;
    update(sql: string, arrayValues?: any[]): Promise<number>;
    limitPageList(sql: string, orderBy: string, pageSize: number, currentPage: number): string;
    destory(): Promise<void>;
}