Struct UserDefinedFunction 

pub struct UserDefinedFunction {
    children: Vec<BoxedExpression>,
    arg_types: Vec<DataType>,
    return_type: DataType,
    arg_schema: SchemaRef,
    runtime: Box<dyn UdfImpl>,
    arrow_convert: UdfArrowConvert,
    span: Span,
    metrics: Metrics,
}

Fields

children: Vec<BoxedExpression>

arg_types: Vec<DataType>

return_type: DataType

arg_schema: SchemaRef

runtime: Box<dyn UdfImpl>

arrow_convert: UdfArrowConvert

span: Span

metrics: Metrics

Implementations

impl UserDefinedFunction

async fn eval_inner(&self, input: &DataChunk) -> Result<ArrayRef>

impl UserDefinedFunction

fn build_inner( prost: &ExprNode, build_child: impl Fn(&ExprNode) -> Result<BoxedExpression>, ) -> Result<Self>

Trait Implementations

impl AsyncExpression for UserDefinedFunction

async fn eval(&self, input: &DataChunk) -> Result<ArrayRef>

Evaluate the expression in vectorized execution. Returns an array.

async fn eval_row(&self, input: &OwnedRow) -> Result<Datum>

Evaluate the expression in row-based execution. Returns a nullable scalar.

fn eval_v2<'a>( &'a self, input: &'a DataChunk, ) -> impl Future<Output = Result<ValueImpl>> + Send + 'a

Evaluate the expression in vectorized execution. Returns a value that can be either an array, or a scalar if all values in the array are the same.

impl BuildBoxed for UserDefinedFunction

fn build_boxed( prost: &ExprNode, build_child: impl Fn(&ExprNode) -> Result<BoxedExpression>, ) -> Result<BoxedExpression>

Build a boxed expression from protobuf.

impl Debug for UserDefinedFunction

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

Formats the value using the given formatter.

impl ExpressionInfo for UserDefinedFunction

fn return_type(&self) -> DataType

Get the return data type.

fn input_ref_index(&self) -> Option<usize>

Get the index if the expression is an InputRef.