/**
 * DuckLake Space Adapter - Bridges Space Context with DuckLake functionality
 * @internal - Not documented publicly
 */
import { DuckDBService } from '../duckdb/service.js';
import { DuckLakeCatalog } from '../service/ducklake.js';
import { SpaceContext } from '../context/SpaceContext.js';
/**
 * Adapter that connects Space Context with DuckLake features
 * @internal
 */
export declare class DuckLakeSpaceAdapter {
    private duckdb;
    private ducklakeService;
    private spaceCatalogs;
    constructor(duckdb: DuckDBService);
    /**
     * Initialize DuckLake for a space
     */
    initializeForSpace(space: SpaceContext): Promise<DuckLakeCatalog | null>;
    /**
     * Create a DuckLake managed table in a space
     */
    createSpaceTable(space: SpaceContext, tableName: string, schema: string, partitionBy?: string[]): Promise<void>;
    /**
     * Time travel query for a space table
     */
    timeTravelQuery(space: SpaceContext, tableName: string, timestamp: Date | number): Promise<any[]>;
    /**
     * Get table version in a space
     */
    getSpaceTableVersion(space: SpaceContext, tableName: string): Promise<number>;
    /**
     * List all snapshots for a space table
     */
    listSnapshots(space: SpaceContext, tableName: string): Promise<Array<{
        version: number;
        timestamp: Date;
        operation: string;
    }>>;
    /**
     * Migrate existing space data to DuckLake
     */
    migrateSpaceToDuckLake(space: SpaceContext, tableName: string, sourceParquetPath: string): Promise<void>;
    /**
     * Clone a table at a specific version
     */
    cloneTableAtVersion(space: SpaceContext, sourceTalbleName: string, targetTableName: string, version: number): Promise<void>;
    /**
     * Get or initialize catalog for a space
     */
    private getCatalogForSpace;
    /**
     * Execute a federated query across multiple space catalogs
     */
    federatedTimeTravel(spaces: SpaceContext[], query: string, timestamp: Date): Promise<any[]>;
    /**
     * Vacuum all tables in a space
     */
    vacuumSpace(space: SpaceContext): Promise<void>;
    /**
     * Get space-level statistics
     */
    getSpaceStatistics(space: SpaceContext): Promise<any>;
}
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