Struct SegmentDescriptor 

pub struct SegmentDescriptor {
    pub id: u64,
    pub level: u32,
    pub col_refs: HashMap<String, ColumnStripeRef>,
    pub min_row_id: RowId,
    pub max_row_id: RowId,
    pub row_count: u64,
    pub min_timestamp: u64,
    pub max_timestamp: u64,
    pub is_tombstone: bool,
}

Segment descriptor with column stripe references

Instead of storing all column data inline, the segment stores references to column stripes which may be at different levels.

Fields

id: u64

Segment ID

level: u32

Level

col_refs: HashMap<String, ColumnStripeRef>

Column stripe references (column name -> stripe ref)

min_row_id: RowId

Min row ID in segment

max_row_id: RowId

Max row ID in segment

row_count: u64

Row count

min_timestamp: u64

Min timestamp

max_timestamp: u64

Max timestamp

is_tombstone: bool

Is tombstone (deleted after compaction)

Trait Implementations

impl Clone for SegmentDescriptor

fn clone(&self) -> SegmentDescriptor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SegmentDescriptor

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SegmentDescriptor

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SegmentDescriptor

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

where __S: Serializer,

Serialize this value into the given Serde serializer.