Enum AggregateExpression 

pub enum AggregateExpression {
    Count {
        expr: Option<Box<Expression>>,
        distinct: bool,
    },
    Sum {
        expr: Box<Expression>,
        distinct: bool,
    },
    Avg {
        expr: Box<Expression>,
        distinct: bool,
    },
    Min {
        expr: Box<Expression>,
        distinct: bool,
    },
    Max {
        expr: Box<Expression>,
        distinct: bool,
    },
    GroupConcat {
        expr: Box<Expression>,
        distinct: bool,
        separator: Option<String>,
    },
    Sample {
        expr: Box<Expression>,
        distinct: bool,
    },
}

Aggregate expressions

Variants

Count

Fields

expr: Option<Box<Expression>>

distinct: bool

Sum

Fields

expr: Box<Expression>

distinct: bool

Avg

Fields

expr: Box<Expression>

distinct: bool

Min

Fields

expr: Box<Expression>

distinct: bool

Max

Fields

expr: Box<Expression>

distinct: bool

GroupConcat

Fields

expr: Box<Expression>

distinct: bool

separator: Option<String>

Sample

Fields

expr: Box<Expression>

distinct: bool

Trait Implementations

impl Clone for AggregateExpression

fn clone(&self) -> AggregateExpression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AggregateExpression

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AggregateExpression

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for AggregateExpression

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for AggregateExpression