/**
 * PostgreSQL storage backend for RecCall
 * Provides enterprise-grade storage with ACID compliance and query capabilities
 */
import type { IContextStorage, ShortcutId, Shortcut } from '../core/interfaces.js';
type Pool = any;
export interface PostgresStorageConfig {
    pool?: Pool;
    connectionString?: string;
    tableName?: string;
}
export declare class PostgresStorage implements IContextStorage {
    private pool;
    private tableName;
    constructor(config: PostgresStorageConfig);
    /**
     * Initialize database schema
     */
    initialize(): Promise<void>;
    record(shortcut: ShortcutId, context: string, options?: Record<string, any>): Promise<void>;
    get(shortcut: ShortcutId): Promise<Shortcut | null>;
    list(): Promise<Shortcut[]>;
    update(shortcut: ShortcutId, context: string, options?: Record<string, any>): Promise<void>;
    delete(shortcut: ShortcutId): Promise<void>;
    purge(): Promise<void>;
    exists(shortcut: ShortcutId): Promise<boolean>;
    getByCategory(category: string): Promise<Shortcut[]>;
    /**
     * Close database connections
     */
    close(): Promise<void>;
    /**
     * Get database pool instance
     */
    getPool(): Pool;
}
export {};
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