/**
 * Index Manager
 *
 * Manages creation, maintenance, and query optimization using indexes.
 */
import type { IndexConfig, IndexQuery, IndexStats, QueryPlan } from './index-types.js';
export declare class IndexManager {
    private indexes;
    private config;
    private indexStats;
    /** Construct an empty index from its configuration. */
    private buildIndex;
    /**
     * Discard every indexed entry while keeping the index definitions.
     *
     * A caller that derives its indexes from a snapshot of the data needs to
     * rebuild them when that snapshot is replaced. Without this, entries for
     * records that are no longer present would linger and a query could return
     * ids the caller can no longer resolve.
     */
    resetEntries(): void;
    createIndex(config: IndexConfig): void;
    updateRecord(recordId: string, oldValue: Record<string, any> | null, newValue: Record<string, any>): void;
    queryIndex(name: string, query: IndexQuery): string[];
    listIndexes(): IndexConfig[];
    getStats(name: string): IndexStats | null;
    planQuery(fields: string[]): QueryPlan;
}
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