Enum JoinKeys 

pub enum JoinKeys {
    On(Vec<String>),
    LeftRight {
        left_on: Vec<String>,
        right_on: Vec<String>,
    },
}

Join key specification.

Variants

On(Vec<String>)

Same column names on both sides.

LeftRight

Different column names for each side.

Fields

left_on: Vec<String>

right_on: Vec<String>

Trait Implementations

impl Clone for JoinKeys

fn clone(&self) -> JoinKeys

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JoinKeys

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

Formats the value using the given formatter.

impl From<(Vec<String>, Vec<String>)> for JoinKeys

fn from(_: (Vec<String>, Vec<String>)) -> JoinKeys

Converts to this type from the input type.

impl From<Vec<String>> for JoinKeys

fn from(cols: Vec<String>) -> JoinKeys

Converts to this type from the input type.

impl PartialEq for JoinKeys

fn eq(&self, other: &JoinKeys) -> 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 Eq for JoinKeys

impl StructuralPartialEq for JoinKeys