import { DbAdapter } from "./adapter.ts";
/**
 * In order to ignore the items (types, views, etc.) that belong to extensions,
 * we use these queries to figure out what the OID's of those are. We can then
 * ignore them in fetchClasses.
 * @returns the oids of the Postgres extension classes and types
 */
export default function fetchExtensionItemIds(db: DbAdapter): Promise<{
    extClassOids: number[];
    extTypeOids: number[];
    extProcOids: number[];
}>;