Enum RowCountKind 

pub enum RowCountKind {
    Exact,
    Estimated,
    Partial,
    Unavailable,
}

Classification for a reported row count.

Variants

Exact

The count is exact for the reported scope.

Estimated

The count is an estimate from metadata, planning, or another non-exact source.

Partial

The count is an observed partial total and must not be treated as exact.

Unavailable

No row count is available.

Implementations

impl RowCountKind

pub const fn as_str(self) -> &'static str

Returns a stable lower-snake-case code for report serialization.

Trait Implementations

impl Clone for RowCountKind

fn clone(&self) -> RowCountKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RowCountKind

impl Debug for RowCountKind

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

Formats the value using the given formatter.

impl Display for RowCountKind

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

Formats the value using the given formatter.

impl Eq for RowCountKind

impl PartialEq for RowCountKind

fn eq(&self, other: &RowCountKind) -> 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 StructuralPartialEq for RowCountKind