import { PoolConfig, Pool } from "pg";
import { ListKeyOptions, RecordManagerInterface, UpdateOptions } from "./base.js";
export type PostgresRecordManagerOptions = {
    postgresConnectionOptions: PoolConfig;
    pool?: Pool;
    tableName?: string;
    schema?: string;
};
export declare class PostgresRecordManager implements RecordManagerInterface {
    lc_namespace: string[];
    pool: Pool;
    tableName: string;
    namespace: string;
    finalTableName: string;
    constructor(namespace: string, config: PostgresRecordManagerOptions);
    createSchema(): Promise<void>;
    getTime(): Promise<number>;
    /**
     * Generates the SQL placeholders for a specific row at the provided index.
     *
     * @param index - The index of the row for which placeholders need to be generated.
     * @param numOfColumns - The number of columns we are inserting data into.
     * @returns The SQL placeholders for the row values.
     */
    private generatePlaceholderForRowAt;
    update(keys: string[], updateOptions?: UpdateOptions): Promise<void>;
    exists(keys: string[]): Promise<boolean[]>;
    listKeys(options?: ListKeyOptions): Promise<string[]>;
    deleteKeys(keys: string[]): Promise<void>;
    /**
     * Terminates the connection pool.
     * @returns {Promise<void>}
     */
    end(): Promise<void>;
}