import type { StdbExport, ExportOptions, SchemaMetadata } from '../types';
import type { ManagedConnection } from '../client/connection';
/**
 * Database export engine
 */
export declare class DatabaseExporter {
    private readonly connection;
    private introspector;
    constructor(connection: ManagedConnection);
    /**
     * Export entire database or specific tables
     */
    export(options: ExportOptions): Promise<StdbExport>;
    /**
     * Export a single table
     */
    private exportTable;
    /**
     * Estimate size of serialized row
     */
    private estimateRowSize;
    /**
     * Build export metadata
     */
    private buildMetadata;
    /**
     * Report progress to callback
     */
    private reportProgress;
}
/**
 * Estimate memory required for export
 */
export declare function estimateExportSize(schema: SchemaMetadata): {
    estimatedRows: number;
    estimatedBytes: number;
};
/**
 * Validate export options
 */
export declare function validateExportOptions(options: ExportOptions): {
    valid: boolean;
    errors: string[];
};
//# sourceMappingURL=exporter.d.ts.map