import { DatabaseSync } from 'node:sqlite';
export type ContentIndexDatabase = DatabaseSync;
/** @deprecated Use {@link ContentIndexDatabase}. */
export type MediaIndexDatabase = ContentIndexDatabase;
export declare function openIndexDatabase(dbPath: string, options?: {
    memory?: boolean;
}): ContentIndexDatabase;
/** SQLite user-defined function for filename regex (pattern, value) → 0|1 */
export declare function registerRegexpFunction(db: DatabaseSync): void;
export declare function getMeta(db: ContentIndexDatabase, key: string): string | null;
export declare function setMeta(db: ContentIndexDatabase, key: string, value: string): void;
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