Struct DFBool8 

pub struct DFBool8(/* private fields */);

Defines the extension type logic for the canonical arrow.bool8 extension type. This extension type allows storing a Boolean value in a single byte, instead of a single bit.

See DFExtensionType for information on DataFusion’s extension type mechanism. See also Bool8 for the implementation of arrow-rs, which this type uses internally.

https://arrow.apache.org/docs/format/CanonicalExtensions.html#bit-boolean

Implementations

impl DFBool8

pub fn try_new( data_type: &DataType, metadata: <Bool8 as ExtensionType>::Metadata, ) -> Result<Self>

Creates a new DFBool8, validating that the storage type is compatible with the extension type.

Even though DFBool8 only supports a single storage type (DataType::Int8), passing-in the storage type allows conveniently validating whether this extension type is compatible with a given DataType.

Trait Implementations

impl Clone for DFBool8

fn clone(&self) -> DFBool8

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl DFExtensionType for DFBool8

fn storage_type(&self) -> DataType

Returns the underlying storage type.

fn serialize_metadata(&self) -> Option<String>

Returns the serialized metadata.

fn create_array_formatter<'fmt>( &self, array: &'fmt dyn Array, options: &FormatOptions<'fmt>, ) -> Result<Option<ArrayFormatter<'fmt>>>

Returns an ArrayFormatter that can format values of this type.

impl Debug for DFBool8

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

Formats the value using the given formatter.