These settings are available in system.merge_tree_settings and are autogenerated from the ClickHouse snapshot.
compact_parts_max_bytes_to_buffer
Only available in ClickHouse Cloud. Maximal number of bytes to write in a single stripe in compact parts
compact_parts_max_granules_to_buffer
Only available in ClickHouse Cloud. Maximal number of granules to write in a single stripe in compact parts
compact_parts_merge_max_bytes_to_prefetch_part
Only available in ClickHouse Cloud. Maximal size of compact part to read it in a whole to memory during merge.