Trait IsConstantFn

pub trait IsConstantFn<A> {
    // Required method
    fn is_constant(
        &self,
        array: A,
        opts: &IsConstantOpts,
    ) -> VortexResult<Option<bool>>;
}

Required Methods

fn is_constant( &self, array: A, opts: &IsConstantOpts, ) -> VortexResult<Option<bool>>

Preconditions

• All values are valid
• array.len() > 1

Returns Ok(None) to signal we couldn’t make an exact determination.

Implementors

impl IsConstantFn<&BoolArray> for BoolEncoding

impl IsConstantFn<&ChunkedArray> for ChunkedEncoding

impl IsConstantFn<&ExtensionArray> for ExtensionEncoding

impl IsConstantFn<&ListArray> for ListEncoding

impl IsConstantFn<&PrimitiveArray> for PrimitiveEncoding

impl IsConstantFn<&StructArray> for StructEncoding

impl IsConstantFn<&VarBinArray> for VarBinEncoding

impl IsConstantFn<&VarBinViewArray> for VarBinViewEncoding

impl<E> IsConstantFn<&dyn Array> for E

where E: for<'a> IsConstantFn<&'a E::Array> + Encoding,