Struct MergeStats 

pub struct MergeStats {
    pub input_files: usize,
    pub output_partitions: u64,
    pub output_rows: u64,
    pub bytes_written: u64,
    pub elapsed: Duration,
    pub dropped_whole: Vec<PathBuf>,
}

Statistics collected during merge

Fields

input_files: usize

Number of input files

output_partitions: u64

Number of output partitions

output_rows: u64

Number of output rows

bytes_written: u64

Bytes written to output

elapsed: Duration

Elapsed time

dropped_whole: Vec<PathBuf>

SSTables DROPPED WHOLE by the fully-expired fast path (issue #1388), distinct from the merged inputs: each of these was proven fully expired by authoritative Statistics.db metadata (max_deletion_time < gcBefore) and overlap-safe, so it was EXCLUDED from the K-way merger’s input list (never read/decoded) and its components are reclaimed after the output publishes. Empty for a compaction that drops nothing (byte-identical to pre-#1388 behavior). Paths are input Data.db paths.

Trait Implementations

impl Clone for MergeStats

fn clone(&self) -> MergeStats

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MergeStats

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.