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 is_valid_join(&self, join_type: &JoinType) -> PolarsResult<()>

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

Formats the value using the given formatter.

impl Default for JoinValidation

fn default() -> JoinValidation

Returns the “default value” for a type.

impl Display for JoinValidation

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

Formats the value using the given formatter.

impl Eq for JoinValidation

impl<'_derivative_strum> From<&'_derivative_strum JoinValidation> for &'static str

fn from(x: &'_derivative_strum JoinValidation) -> &'static str

Converts to this type from the input type.

impl From<JoinValidation> for &'static str

fn from(x: JoinValidation) -> &'static str

Converts to this type from the input type.

impl Hash for JoinValidation

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 JoinValidation

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for JoinValidation