Enum Expression 

pub enum Expression {
    Column {
        table: &'static str,
        name: &'static str,
    },
    Value(Value),
    Subquery(SelectSubquery),
    Function {
        name: &'static str,
        arguments: Vec<Expression>,
    },
    Coalesce(Vec<Expression>),
    Least(Vec<Expression>),
    Cast {
        expression: Box<Expression>,
        sql_type: &'static str,
    },
    Alias {
        expression: Box<Expression>,
        alias: &'static str,
    },
    Wildcard,
    Window {
        expression: Box<Expression>,
        partition_by: Vec<Expression>,
        order_by: Vec<(Expression, OrderDirection)>,
        frame: Option<WindowFrame>,
    },
    Binary {
        left: Box<Expression>,
        operator: BinaryOperator,
        right: Box<Expression>,
    },
    Unary {
        operator: UnaryOperator,
        expression: Box<Expression>,
    },
    And(Vec<Expression>),
    Or(Vec<Expression>),
}

Variants

Column

Fields

table: &'static str

name: &'static str

Value(Value)

Subquery(SelectSubquery)

Function

Fields

name: &'static str

arguments: Vec<Expression>

Coalesce(Vec<Expression>)

Least(Vec<Expression>)

Cast

Fields

expression: Box<Expression>

sql_type: &'static str

Alias

Fields

expression: Box<Expression>

alias: &'static str

Wildcard

Window

Fields

expression: Box<Expression>

partition_by: Vec<Expression>

order_by: Vec<(Expression, OrderDirection)>

frame: Option<WindowFrame>

Binary

Fields

left: Box<Expression>

operator: BinaryOperator

right: Box<Expression>

Unary

Fields

operator: UnaryOperator

expression: Box<Expression>

And(Vec<Expression>)

Or(Vec<Expression>)

Implementations

impl Expression

pub fn and(self, other: Expression) -> Self

pub fn or(self, other: Expression) -> Self

Trait Implementations

impl Clone for Expression

fn clone(&self) -> Expression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Expression

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

Formats the value using the given formatter.