Trait ExprBuiltins 

pub trait ExprBuiltins: Sized {
    // Required methods
    fn cast(&self, dtype: DType) -> VortexResult<Expression>;
    fn fill_null(&self, fill_value: Expression) -> VortexResult<Expression>;
    fn get_item(
        &self,
        field_name: impl Into<FieldName>,
    ) -> VortexResult<Expression>;
    fn is_null(&self) -> VortexResult<Expression>;
    fn is_not_null(&self) -> VortexResult<Expression>;
    fn mask(&self, mask: Expression) -> VortexResult<Expression>;
    fn not(&self) -> VortexResult<Expression>;
    fn list_contains(&self, value: Expression) -> VortexResult<Expression>;
    fn zip(
        &self,
        if_true: Expression,
        if_false: Expression,
    ) -> VortexResult<Expression>;
    fn binary(&self, rhs: Expression, op: Operator) -> VortexResult<Expression>;
}

A collection of built-in scalar functions that can be applied to expressions or arrays.

Required Methods

fn cast(&self, dtype: DType) -> VortexResult<Expression>

Cast to the given data type.

fn fill_null(&self, fill_value: Expression) -> VortexResult<Expression>

Replace null values with the given fill value.

fn get_item(&self, field_name: impl Into<FieldName>) -> VortexResult<Expression>

Get item by field name (for struct types).

fn is_null(&self) -> VortexResult<Expression>

Is null check.

fn is_not_null(&self) -> VortexResult<Expression>

Is not null check.

fn mask(&self, mask: Expression) -> VortexResult<Expression>

Mask the expression using the given boolean mask. The resulting expression’s validity is the intersection of the original expression’s validity.

fn not(&self) -> VortexResult<Expression>

Boolean negation.

fn list_contains(&self, value: Expression) -> VortexResult<Expression>

Check if a list contains a value.

fn zip( &self, if_true: Expression, if_false: Expression, ) -> VortexResult<Expression>

Conditional selection: result[i] = if mask[i] then if_true[i] else if_false[i].

fn binary(&self, rhs: Expression, op: Operator) -> VortexResult<Expression>

Apply a binary operator to this expression and another.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl ExprBuiltins for Expression