Enum CoverageTotalState 

pub enum CoverageTotalState {
    Exact(u32),
    AtLeast(u32),
    Unknown,
}

Typed cardinality knowledge for one bounded coverage page.

Variants

Exact(u32)

The bounded page proves the exact filtered total.

AtLeast(u32)

At least this many matching rows exist.

Unknown

An exact or lower-bound total is unavailable at this continuation.

Trait Implementations

impl Clone for CoverageTotalState

fn clone(&self) -> CoverageTotalState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CoverageTotalState

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

Formats the value using the given formatter.

impl PartialEq for CoverageTotalState

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for CoverageTotalState

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for CoverageTotalState

impl StructuralPartialEq for CoverageTotalState