Struct SummaryHeader 

pub struct SummaryHeader {
    pub min_index_interval: u32,
    pub entries_count: u32,
    pub summary_entries_size: u64,
    pub sampling_level: u32,
    pub size_at_full_sampling: u32,
}

Summary.db file header - Cassandra 5.0 format (24 bytes)

Fields

min_index_interval: u32

Lower bound for average partitions between index entries (e.g., 128)

entries_count: u32

Number of summary entries

summary_entries_size: u64

Total size of offset table + entry data in bytes

sampling_level: u32

Sampling level (1-128, typically 128)

size_at_full_sampling: u32

Entries count at full sampling

Trait Implementations

impl Clone for SummaryHeader

fn clone(&self) -> SummaryHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SummaryHeader

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SummaryHeader

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SummaryHeader

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

where __S: Serializer,

Serialize this value into the given Serde serializer.