Struct StatisticsSummary 

pub struct StatisticsSummary {
    pub total_rows: u64,
    pub live_data_percentage: Option<f64>,
    pub compression_efficiency: Option<f64>,
    pub timestamp_range_days: f64,
    pub largest_partition_mb: Option<f64>,
    pub data_efficiency: Option<f64>,
    pub query_performance_hints: Vec<String>,
    pub storage_recommendations: Vec<String>,
    pub health_score: f64,
}

Human-readable statistics summary

Fields

total_rows: u64

live_data_percentage: Option<f64>

Percentage of live (non-tombstoned) data, or None when not authoritatively available (the #1325 live_rows == 0 sentinel; see StatisticsAnalyzer::live_data_percentage and #1352).

compression_efficiency: Option<f64>

Compression efficiency (ratio × 100), or None when compression statistics are not authoritatively available (issue #1653 — the enhanced nb parser does not decode them; see SSTableStatistics::compression_stats).

timestamp_range_days: f64

largest_partition_mb: Option<f64>

Largest partition size in MB, or None when partition statistics are not authoritatively available (issue #1653; see SSTableStatistics::partition_stats).

data_efficiency: Option<f64>

Blended data-efficiency score, or None when the live-row ratio is not authoritatively available (the #1325 live_rows == 0 sentinel, or total_rows == 0); see StatisticsAnalyzer::calculate_data_efficiency and #1352.

query_performance_hints: Vec<String>

storage_recommendations: Vec<String>

health_score: f64

Trait Implementations

impl Clone for StatisticsSummary

fn clone(&self) -> StatisticsSummary

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StatisticsSummary

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StatisticsSummary

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for StatisticsSummary

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

where __S: Serializer,

Serialize this value into the given Serde serializer.