Enum ExprIr 

pub enum ExprIr {
    Column(String),
    Lit(LiteralValue),
    Eq(Box<ExprIr>, Box<ExprIr>),
    Ne(Box<ExprIr>, Box<ExprIr>),
    Gt(Box<ExprIr>, Box<ExprIr>),
    Ge(Box<ExprIr>, Box<ExprIr>),
    Lt(Box<ExprIr>, Box<ExprIr>),
    Le(Box<ExprIr>, Box<ExprIr>),
    EqNullSafe(Box<ExprIr>, Box<ExprIr>),
    And(Box<ExprIr>, Box<ExprIr>),
    Or(Box<ExprIr>, Box<ExprIr>),
    Not(Box<ExprIr>),
    Add(Box<ExprIr>, Box<ExprIr>),
    Sub(Box<ExprIr>, Box<ExprIr>),
    Mul(Box<ExprIr>, Box<ExprIr>),
    Div(Box<ExprIr>, Box<ExprIr>),
    Between {
        left: Box<ExprIr>,
        lower: Box<ExprIr>,
        upper: Box<ExprIr>,
    },
    IsIn(Box<ExprIr>, Box<ExprIr>),
    IsNull(Box<ExprIr>),
    IsNotNull(Box<ExprIr>),
    When {
        condition: Box<ExprIr>,
        then_expr: Box<ExprIr>,
        otherwise: Box<ExprIr>,
    },
    Call {
        name: String,
        args: Vec<ExprIr>,
    },
}

Expression IR: a single, serializable tree that backends convert to their native Expr.

Variants

Column(String)

Column reference: col("name")

Lit(LiteralValue)

Literal value

Eq(Box<ExprIr>, Box<ExprIr>)

Ne(Box<ExprIr>, Box<ExprIr>)

Gt(Box<ExprIr>, Box<ExprIr>)

Ge(Box<ExprIr>, Box<ExprIr>)

Lt(Box<ExprIr>, Box<ExprIr>)

Le(Box<ExprIr>, Box<ExprIr>)

EqNullSafe(Box<ExprIr>, Box<ExprIr>)

And(Box<ExprIr>, Box<ExprIr>)

Or(Box<ExprIr>, Box<ExprIr>)

Not(Box<ExprIr>)

Add(Box<ExprIr>, Box<ExprIr>)

Sub(Box<ExprIr>, Box<ExprIr>)

Mul(Box<ExprIr>, Box<ExprIr>)

Div(Box<ExprIr>, Box<ExprIr>)

Between

Fields

left: Box<ExprIr>

lower: Box<ExprIr>

upper: Box<ExprIr>

IsIn(Box<ExprIr>, Box<ExprIr>)

IsNull(Box<ExprIr>)

IsNotNull(Box<ExprIr>)

When

Fields

condition: Box<ExprIr>

then_expr: Box<ExprIr>

otherwise: Box<ExprIr>

Call

Function call: name and args (e.g. sum, count, upper, substring, cast).

Fields

name: String

args: Vec<ExprIr>

Trait Implementations

impl Clone for ExprIr

fn clone(&self) -> ExprIr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExprIr

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ExprIr

fn deserialize<__D>( __deserializer: __D, ) -> Result<ExprIr, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ExprIr

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

where __S: Serializer,

Serialize this value into the given Serde serializer.