Trait ExprBuiltins 

pub trait ExprBuiltins: Sized {
    // Required methods
    fn cast(&self, dtype: DType) -> Result<Expression, VortexError>;
    fn get_item(
        &self,
        field_name: impl Into<FieldName>,
    ) -> Result<Expression, VortexError>;
    fn is_null(&self) -> Result<Expression, VortexError>;
    fn mask(&self, mask: Expression) -> Result<Expression, VortexError>;
    fn not(&self) -> Result<Expression, VortexError>;
}

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

Required Methods

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

Cast to the given data type.

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

Get item by field name (for struct types).

fn is_null(&self) -> Result<Expression, VortexError>

Is null check.

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

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) -> Result<Expression, VortexError>

Boolean negation.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl ExprBuiltins for Expression