import type { AbstractConnection, ConnectionOptions } from '@sequelize-orm/core';
import { AbstractConnectionManager } from '@sequelize-orm/core';
import type { ClientConfig } from 'pg';
import * as Pg from 'pg';
import type { TypeId, TypeParser } from 'pg-types';
import type { PostgresDialect } from './dialect.js';
type TypeFormat = 'text' | 'binary';
export type PgModule = typeof Pg;
export interface PostgresConnection extends AbstractConnection, Pg.Client {
    _invalid?: boolean;
    standard_conforming_strings?: boolean;
    _ending?: boolean;
}
export interface PostgresConnectionOptions extends Omit<ClientConfig, 'types' | 'connectionString'> {
    /**
     * !! DO NOT SET THIS TO TRUE !!
     * (unless you know what you're doing)
     * see [http://www.postgresql.org/message-id/flat/bc9549a50706040852u27633f41ib1e6b09f8339d845@mail.gmail.com#bc9549a50706040852u27633f41ib1e6b09f8339d845@mail.gmail.com]
     */
    binary?: boolean;
    /**
     * see [http://www.postgresql.org/docs/9.3/static/runtime-config-logging.html#GUC-APPLICATION-NAME]
     * choose the SSL mode with the PGSSLMODE environment variable
     * object format: [https://github.com/brianc/node-postgres/blob/ee19e74ffa6309c9c5e8e01746261a8f651661f8/lib/connection.js#L79]
     * see also [http://www.postgresql.org/docs/9.3/static/libpq-ssl.html]
     * In addition to the values accepted by the corresponding server,
     * you can use "auto" to determine the right encoding from the
     * current locale in the client (LC_CTYPE environment variable on Unix systems)
     */
    client_encoding?: string;
    /**
     * This should help with backends incorrectly considering idle clients to be dead and prematurely disconnecting them.
     * this feature has been added in pg module v6.0.0, check pg/CHANGELOG.md
     * Times out queries after a set time in milliseconds in the database end. Added in pg v7.3
     * Times out queries after a set time in milliseconds in client end, query would be still running in database end.
     * Number of milliseconds to wait for connection, default is no timeout.
     * Terminate any session with an open transaction that has been idle for longer than the specified duration in milliseconds. Added in pg v7.17.0 only supported in postgres >= 10
     * Maximum wait time for lock requests in milliseconds. Added in pg v8.8.0.
     */
    lock_timeout?: number;
}
export declare class PostgresConnectionManager extends AbstractConnectionManager<PostgresDialect, PostgresConnection> {
    #private;
    constructor(dialect: PostgresDialect);
    connect(config: ConnectionOptions<PostgresDialect>): Promise<PostgresConnection>;
    disconnect(connection: PostgresConnection): Promise<void>;
    validate(connection: PostgresConnection): boolean;
    getTypeParser(oid: TypeId, format?: TypeFormat): TypeParser<any, any>;
    /**
     * Refreshes the local registry of Custom Types (e.g. enum) OIDs
     */
    refreshDynamicOids(): Promise<void>;
}
export {};