/**
 * schemaAssertion.ts
 *
 * Boot-time guard for GH #801: PR #785 added a `.sql` migration for
 * `author_subject`, the write path started reading the column, everything
 * passed CI, and the migration never ran on prod — every wiki write 400'd
 * (PGRST204) until it was hotfixed by hand. This makes that failure loud at
 * boot instead of silent until traffic.
 *
 * Single named list so adding a column the write path depends on is a
 * one-line change. Each entry names the migration file that supplies the
 * column so the boot-failure message points straight at the fix.
 */
import type { PostgresSearchIndex } from "./postgresIndex.js";
export declare const REQUIRED_WRITE_PATH_COLUMNS: ReadonlyArray<{
    table: string;
    column: string;
    migration: string;
}>;
/**
 * Verifies every column in REQUIRED_WRITE_PATH_COLUMNS exists on the live
 * schema. No-ops when Postgres isn't configured — an unconfigured deployment
 * (sqlite/scan backend) must still boot. Throws on the first missing column,
 * naming the table, column, and migration file that supplies it; does not
 * retry.
 */
export declare function assertWritePathColumns(index: PostgresSearchIndex): Promise<void>;
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