import { Pool } from 'pg';
import { DBAdapterOptions, IDBQuery, IDBResult, IDBBulkQuery, IPoolStatus, IDBStatFrame } from '../DBService';
import { ITransaction } from '../MysqlService';
import { IDBAdapter } from './IDBAdapter';
export declare class PostgresAdapter implements IDBAdapter {
    options: DBAdapterOptions;
    serviceStarted: boolean;
    reconnectionTimeout: number;
    reconnecting: boolean;
    pool: Pool | null;
    timeoutID: any;
    queries: never[];
    static nextTransactionID: number;
    transactions: ITransaction[];
    maxTransactionWaitTime: number;
    lastSuccessQueryTime: number;
    pingInterval: number;
    poolConnections: number;
    acquiredPoolConnections: number;
    statFrames: Map<number, IDBStatFrame>;
    constructor(options: DBAdapterOptions);
    stat(): Map<number, IDBStatFrame>;
    escape(value: string): string;
    tBegin?(): Promise<IDBResult>;
    tCommit?(trxid: number): Promise<IDBResult>;
    tRollback?(trxid: number): Promise<IDBResult>;
    poolStatus(): IPoolStatus;
    init(): Promise<void>;
    healthcheck(): Promise<boolean>;
    finish(): Promise<void>;
    prepareQuery(request: IDBQuery): string;
    query(request: IDBQuery): Promise<IDBResult>;
    bulk(request: IDBBulkQuery): Promise<IDBResult[]>;
}