Enum StatisticColumn 

pub enum StatisticColumn {
    Column(Identifier),
    Expression(NormalizedExpr),
}

A single entry in the statistic’s column list.

Variants

Column(Identifier)

Plain column_name reference.

Expression(NormalizedExpr)

Expression statistic (PG 14+): (lower(name)). Canonicalized via NormalizedExpr (same canon as CHECK / USING / WITH CHECK).

Trait Implementations

impl Clone for StatisticColumn

fn clone(&self) -> StatisticColumn

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StatisticColumn

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StatisticColumn

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for StatisticColumn

fn eq(&self, other: &StatisticColumn) -> 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 StatisticColumn

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 StatisticColumn

impl StructuralPartialEq for StatisticColumn