Enum Agg 

pub enum Agg {
    CountStar {
        distinct: bool,
    },
    Count(String, bool),
    Sum(String),
    Avg(String),
    Min(String),
    Max(String),
    Sample(String),
    GroupConcat(String, String, bool),
}

A supported aggregate function.

Variants

CountStar

COUNT(*) — number of solutions in the group.

Fields

distinct: bool

Count(String, bool)

COUNT(?v) — number of (optionally distinct) bound values.

Sum(String)

Avg(String)

Min(String)

Max(String)

Sample(String)

SAMPLE(?v) — any one value from the group.

GroupConcat(String, String, bool)

GROUP_CONCAT([DISTINCT] ?v; SEPARATOR=…) — values joined by the separator (deduplicated when distinct).

Trait Implementations

impl Clone for Agg

fn clone(&self) -> Agg

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Agg

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

Formats the value using the given formatter.