presto-base-jdbc/src/main/java/io/prestosql/plugin/jdbc/RemoteTableNameCacheKey.java/RemoteTableNameCacheKey/toString
class RemoteTableNameCacheKey:    @Override
    public String toString()
    {
        return toStringHelper(this)
                .add("identity", identity)
                .add("schema", schema)
                .toString();
    }