These settings are available in system.merge_tree_settings and are autogenerated from the ClickHouse snapshot.
min_rows_for_full_part_storage
Minimal number of rows to use full type of storage for data part instead of packed
min_rows_for_wide_part
Minimal number of rows to create a data part in Wide format instead of Compact.
min_rows_to_fsync_after_merge
Minimal number of rows to do fsync for part after merge (0 - disabled)