Trait VortexExpr

pub trait VortexExpr:
    Debug
    + Send
    + Sync
    + DynEq
    + DynHash
    + Display
    + ExprSerializable {
    // Required methods
    fn as_any(&self) -> &dyn Any;
    fn unchecked_evaluate(&self, batch: &dyn Array) -> VortexResult<ArrayRef>;
    fn children(&self) -> Vec<&ExprRef> ;
    fn replacing_children(self: Arc<Self>, children: Vec<ExprRef>) -> ExprRef;
    fn return_dtype(&self, scope_dtype: &DType) -> VortexResult<DType>;

    // Provided method
    fn evaluate(&self, batch: &dyn Array) -> VortexResult<ArrayRef> { ... }
}

Represents logical operation on ArrayRefs

Required Methods

fn as_any(&self) -> &dyn Any

Convert expression reference to reference of Any type

fn unchecked_evaluate(&self, batch: &dyn Array) -> VortexResult<ArrayRef>

Compute result of expression on given batch producing a new batch

“Unchecked” means that this function lacks a debug assertion that the returned array matches the VortexExpr::return_dtype method. Use instead the VortexExpr::evaluate function which includes such an assertion.

fn children(&self) -> Vec<&ExprRef>

fn replacing_children(self: Arc<Self>, children: Vec<ExprRef>) -> ExprRef

fn return_dtype(&self, scope_dtype: &DType) -> VortexResult<DType>

Compute the type of the array returned by VortexExpr::evaluate.

Provided Methods

fn evaluate(&self, batch: &dyn Array) -> VortexResult<ArrayRef>

Compute result of expression on given batch producing a new batch

Trait Implementations

impl<'hash> Hash for dyn VortexExpr + 'hash

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

impl<'hash> Hash for dyn VortexExpr + Send + 'hash

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

impl<'hash> Hash for dyn VortexExpr + Send + Sync + 'hash

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

impl<'hash> Hash for dyn VortexExpr + Sync + 'hash

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

impl PartialEq for dyn VortexExpr

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for dyn VortexExpr

Implementors

impl VortexExpr for BinaryExpr

impl VortexExpr for GetItem

impl VortexExpr for Identity

impl VortexExpr for Like

impl VortexExpr for Literal

impl VortexExpr for Merge

impl VortexExpr for Not

impl VortexExpr for Pack

impl VortexExpr for Select