Struct Pi 

pub struct Pi;

Trait Implementations

impl Clone for Pi

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Pi

impl Debug for Pi

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

Formats the value using the given formatter.

impl Eq for Pi

impl PartialEq for Pi

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

Equality operator ==.

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

Inequality operator !=.

impl ScalarFunction for Pi

type State = ()

State that gets passed to the function during execute.

fn bind(&self, inputs: Vec<Expression>) -> Result<BindState<Self::State>>

Compute the return type from the expression inputs and return a function state.

fn execute( _state: &Self::State, input: &Batch, output: &mut Array, ) -> Result<()>

Execute the function the input batch, writing the output for each row into output at the same index.

const VOLATILITY: FunctionVolatility = FunctionVolatility::Consistent

impl StructuralPartialEq for Pi