Struct ColumnField

pub struct ColumnField { /* private fields */ }

This type is used to represent the metadata of a column in a table. Namely: it’s name and type.

This is the analog of a Field in Apache Arrow.

Implementations

impl ColumnField

pub fn new(name: Identifier, data_type: ColumnType) -> ColumnField

Create a new ColumnField from a name and a type

pub fn name(&self) -> Identifier

Returns the name of the column

pub fn data_type(&self) -> ColumnType

Returns the type of the column

Trait Implementations

impl Clone for ColumnField

fn clone(&self) -> ColumnField

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnField

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ColumnField

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<&ColumnField> for Field

Convert ColumnField values to arrow Field

fn from(column_field: &ColumnField) -> Self

Converts to this type from the input type.

impl Hash for ColumnField

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

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ColumnField

fn eq(&self, other: &ColumnField) -> 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 Serialize for ColumnField

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for ColumnField

impl Eq for ColumnField

impl StructuralPartialEq for ColumnField