Enum polars_io::csv::read::NullValues

pub enum NullValues {
    AllColumnsSingle(String),
    AllColumns(Vec<String>),
    Named(Vec<(String, String)>),
}

Available on crate features csv or json only.

Variants

AllColumnsSingle(String)

A single value that’s used for all columns

AllColumns(Vec<String>)

Multiple values that are used for all columns

Named(Vec<(String, String)>)

Tuples that map column names to null value of that column

Trait Implementations

impl Clone for NullValues

fn clone(&self) -> NullValues

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NullValues

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for NullValues

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for NullValues

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 NullValues

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for NullValues

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for NullValues

impl StructuralPartialEq for NullValues