/**
 * Tables for the core search index. Fixed names, scoped by `app` and
 * `resource_type`, so several apps can share one database.
 */
import type { DbExec } from "../db/client.js";
export declare const SEARCH_RESOURCES_TABLE = "search_resources";
export declare const SEARCH_INDEX_STATE_TABLE = "search_index_state";
export declare const searchIndexStore: import("../db/store-registry.js").Store;
export declare function ensureSearchIndexTables(injectedClient?: DbExec): Promise<void>;
/**
 * Raises an index's target version, leaving the rebuild for the first drain
 * at that version to claim. A process on a lower version reads the index as
 * outdated from then on and serves its previous search. Returns the target
 * now in force, which is higher than `version` when a newer build raised it.
 */
export declare function raiseSearchIndexTarget(exec: DbExec, target: {
    app: string;
    type: string;
    version: number;
}): Promise<number>;
/**
 * Marks the index as needing a rebuild at its current version, including a
 * rebuild still queueing rows: its queue may predate the writes this
 * invalidation is for. Nothing to do before the search tables exist: there
 * is no index yet.
 */
export declare function invalidateSearchIndex(exec: DbExec, target: {
    app: string;
    type: string;
}): Promise<void>;