import { EventEmitter } from "events";
import { Pool } from "generic-pool";
import { IDbConn, IQueryColumnDef, ISOLATION_LEVEL, TDbConnConf } from "@simplysm/sd-orm-common";
export declare class PooledDbConn extends EventEmitter implements IDbConn {
    private readonly _pool;
    private readonly _initialConfig;
    private _rawConn?;
    constructor(_pool: Pool<IDbConn>, _initialConfig: TDbConnConf);
    get config(): TDbConnConf;
    get isConnected(): boolean;
    get isOnTransaction(): boolean;
    connectAsync(): Promise<void>;
    closeAsync(): Promise<void>;
    private readonly _onRawConnClose;
    beginTransactionAsync(isolationLevel?: ISOLATION_LEVEL): Promise<void>;
    commitTransactionAsync(): Promise<void>;
    rollbackTransactionAsync(): Promise<void>;
    executeAsync(queries: string[]): Promise<any[][]>;
    executeParametrizedAsync(query: string, params?: any[]): Promise<any[][]>;
    bulkInsertAsync(tableName: string, columnDefs: IQueryColumnDef[], records: Record<string, any>[]): Promise<void>;
    bulkUpsertAsync(tableName: string, columnDefs: IQueryColumnDef[], records: Record<string, any>[]): Promise<void>;
    private _checkConnected;
}