std::unique_ptr< cudf::table > merge(std::vector< table_view > const &tables_to_merge, std::vector< cudf::size_type > const &key_cols, std::vector< cudf::order > const &column_order, std::vector< cudf::null_order > const &null_precedence={}, rmm::device_async_resource_ref mr=rmm::mr::get_current_device_resource())
Merge a set of sorted tables.