Struct Partition 

pub struct Partition {
    pub idx: u64,
    pub count: u64,
    pub start_ord: u64,
    pub end_ord: u64,
    pub start_pct: f64,
    pub end_pct: f64,
    pub base_extent: u64,
}

A single resolved partition: an absolute ordinal range with derived percentage and index metadata.

cardinality() returns end_ord - start_ord — the number of ordinals the partition covers.

Fields

idx: u64

0-based position in the resolved partition list (generation order — stable under spec-level reordering).

count: u64

Total number of partitions in the list this one was resolved as part of. 1 for a single-partition spec. Carried per-partition so an iter-var or q.cursor projection can answer partition_count (and the status banner can render i/n) without the originating list.

start_ord: u64

Absolute ordinal at partition start (inclusive).

end_ord: u64

Absolute ordinal at partition end (exclusive).

start_pct: f64

Start as a percentage of the base extent, [0.0, 100.0).

end_pct: f64

End as a percentage of the base extent, (0.0, 100.0].

base_extent: u64

The base extent the partition was resolved against. Stored so consumers can recompute pcts or compare partitions resolved against different extents.

Implementations

impl Partition

pub fn cardinality(&self) -> u64

Number of ordinals in the partition: end_ord - start_ord.

Trait Implementations

impl Clone for Partition

fn clone(&self) -> Partition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Partition

impl Debug for Partition

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

Formats the value using the given formatter.

impl PartialEq for Partition

fn eq(&self, other: &Partition) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl ReflectedValue for Partition

fn type_name(&self) -> &str

Type name for diagnostics and describe output.

fn display(&self) -> String

Human-readable string representation. Used by stdout adapter, logging, and diagnostics.

fn to_json_value(&self) -> Value

JSON representation for serialization and HTTP bodies.

fn as_any(&self) -> &dyn Any

Downcast to the concrete type. Only works when the consuming code has the concrete type in scope (same crate or shared dep).

fn clone_reflected(&self) -> Box<dyn ReflectedValue>

Clone into a new boxed trait object.

fn try_as_str(&self) -> Option<String>

Try to represent as a string. Many types have a canonical string form (UUIDs, timestamps, IP addresses).

fn try_as_u64(&self) -> Option<u64>

Try to represent as u64.

fn try_as_f64(&self) -> Option<f64>

Try to represent as f64.

fn try_as_bytes(&self) -> Option<&[u8]>

Try to represent as bytes.

impl StructuralPartialEq for Partition