Enum JoinValidation 

pub enum JoinValidation {
    ManyToMany,
    ManyToOne,
    OneToMany,
    OneToOne,
}

Variants

ManyToMany

No unique checks

ManyToOne

Check if join keys are unique in right dataset.

OneToMany

Check if join keys are unique in left dataset.

OneToOne

Check if join keys are unique in both left and right datasets

Implementations

impl JoinValidation

pub fn needs_checks(&self) -> bool

pub fn swap(self, swap: bool) -> JoinValidation

pub fn is_valid_join(&self, join_type: &JoinType) -> Result<(), PolarsError>

Trait Implementations

impl Clone for JoinValidation

fn clone(&self) -> JoinValidation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for JoinValidation

impl Debug for JoinValidation

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

Formats the value using the given formatter.

impl Default for JoinValidation

fn default() -> JoinValidation

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for JoinValidation

fn deserialize<__D>( __deserializer: __D, ) -> Result<JoinValidation, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for JoinValidation

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

Formats the value using the given formatter.

impl Eq for JoinValidation

impl Hash for JoinValidation

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

where __H: Hasher,

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 JoinValidation

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for JoinValidation

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for JoinValidation