Function GetExtTableEntry

src/backend/access/external/external.c:162–174

* Get the entry for an exttable relation (from pg_foreign_table) */

 * Get the entry for an exttable relation (from pg_foreign_table)
 */
ExtTableEntry*
GetExtTableEntry(Oid relid)
{
	ExtTableEntry *extentry;

	extentry = GetExtTableEntryIfExists(relid);
	if (!extentry)
		ereport(ERROR,
				(errcode(ERRCODE_UNDEFINED_OBJECT),
				 errmsg("missing pg_foreign_table entry for relation \"%s\"",
						get_rel_name(relid))));
	return extentry;
}

/*
 * Like GetExtTableEntry(Oid), but returns NULL instead of throwing