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ExprBuiltins

vortex_array::builtins

Trait ExprBuiltins 

Source 
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 mask(&self, mask: Expression) -> VortexResult<Expression>;
    fn not(&self) -> VortexResult<Expression>;
    fn zip(
        &self,
        if_false: Expression,
        mask: Expression,
    ) -> VortexResult<Expression>;
}
Expand description

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

Required Methods§

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

Cast to the given data type.

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

Replace null values with the given fill value.

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

Get item by field name (for struct types).

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

Is null check.

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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.

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

Boolean negation.

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

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

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§