fn generate_splits_fast(
sstable_infos: &[&SstableInfo],
compaction_size: u64,
context: &CompactorContext,
max_sub_compaction: u32,
) -> Vec<KeyRange>fn generate_splits_fast(
sstable_infos: &[&SstableInfo],
compaction_size: u64,
context: &CompactorContext,
max_sub_compaction: u32,
) -> Vec<KeyRange>