import type { QueryResult } from './types.js';
import type { MultiDbConfig } from '../config/config-loader.js';
export declare class PostgresClient {
    private pools;
    private configs;
    private activeDb;
    private defaultDb;
    constructor(multiConfig: MultiDbConfig);
    static fromEnv(): PostgresClient;
    connect(name?: string): Promise<void>;
    disconnect(name?: string): Promise<void>;
    query(sql: string, params?: unknown[]): Promise<QueryResult>;
    queryOn(name: string, sql: string, params?: unknown[]): Promise<QueryResult>;
    setActiveDatabase(name: string): void;
    getActiveDatabase(): string;
    getConfiguredDatabases(): string[];
    isConnected(name?: string): boolean;
    getPoolStatus(name?: string): Promise<{
        database: string;
        connected: boolean;
        totalCount: number;
        idleCount: number;
        waitingCount: number;
    }>;
}
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