presto-tpch/src/main/java/io/prestosql/plugin/tpch/TpchHandleResolver.java/TpchHandleResolver/getPartitioningHandleClass
class TpchHandleResolver:    @Override
    public Class<? extends ConnectorPartitioningHandle> getPartitioningHandleClass()
    {
        return TpchPartitioningHandle.class;
    }