Struct MergeMetrics

pub struct MergeMetrics {

    pub num_source_rows: usize,
    pub num_target_rows_inserted: usize,
    pub num_target_rows_updated: usize,
    pub num_target_rows_deleted: usize,
    pub num_target_rows_copied: usize,
    pub num_output_rows: usize,
    pub num_target_files_scanned: usize,
    pub num_target_files_skipped_during_scan: usize,
    pub num_target_files_added: usize,
    pub num_target_files_removed: usize,
    pub execution_time_ms: u64,
    pub scan_time_ms: u64,
    pub rewrite_time_ms: u64,
}

Metrics for the Merge Operation

Fields

num_source_rows: usize

Number of rows in the source data

num_target_rows_inserted: usize

Number of rows inserted into the target table

num_target_rows_updated: usize

Number of rows updated in the target table

num_target_rows_deleted: usize

Number of rows deleted in the target table

num_target_rows_copied: usize

Number of target rows copied

num_output_rows: usize

Total number of rows written out

num_target_files_scanned: usize

Amount of files considered during table scan

num_target_files_skipped_during_scan: usize

Amount of files not considered (pruned) during table scan

num_target_files_added: usize

Number of files added to the sink(target)

num_target_files_removed: usize

Number of files removed from the sink(target)

execution_time_ms: u64

Time taken to execute the entire operation

scan_time_ms: u64

Time taken to scan the files for matches

rewrite_time_ms: u64

Time taken to rewrite the matched files

Trait Implementations

impl Debug for MergeMetrics

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

Formats the value using the given formatter.

impl Default for MergeMetrics

fn default() -> MergeMetrics

Returns the “default value” for a type.

impl Serialize for MergeMetrics

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.