Enum ColumnKey 

pub enum ColumnKey {
    NotKey,
    Primary,
    Unique,
    Multiple,
}

Variants

NotKey

This column is not the first column of any key

Primary

This column is part of the primary key

Unique

This column is the first column of a unique key

Multiple

This column is the first column of a non-unique key

Trait Implementations

impl Clone for ColumnKey

fn clone(&self) -> ColumnKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnKey

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

Formats the value using the given formatter.

impl PartialEq for ColumnKey

fn eq(&self, other: &ColumnKey) -> 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 StructuralPartialEq for ColumnKey