Enum AggSpec 

pub enum AggSpec<'a> {
    Single(Cow<'a, str>),
    Multiple(Cow<'a, str>, Vec<ColumnType>),
}

Specification for an aggregate function.

Aggregates can either take no additional arguments (AggSpec::Single) or require column type arguments (AggSpec::Multiple).

Variants

Single(Cow<'a, str>)

An aggregate function with no additional arguments.

Multiple(Cow<'a, str>, Vec<ColumnType>)

An aggregate function that requires column type arguments.

Trait Implementations

impl<'a> Debug for AggSpec<'a>

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

Formats the value using the given formatter.

impl<'de, 'a> Deserialize<'de> for AggSpec<'a>

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.