fn pick_unbalanced_count_first(
sorted_runs: Vec<SortedRun<FileHandle>>,
max_output_file_size: Option<u64>,
mapper: &PrimaryKeyRangeMapper,
) -> Vec<FileHandle>Expand description
Last-resort pick for inactive windows with no balance requirement at all. Callers must only pass single-level (L0) files so the rewrite stays bounded by their bytes.