Enum IndexKeyPart 

pub enum IndexKeyPart {
    Column {
        name: &'static str,
        length: Option<u32>,
        order: Option<IndexOrder>,
    },
    Expression {
        sql: &'static str,
        order: Option<IndexOrder>,
    },
}

One column or trusted SQL expression in a generated MySQL index.

Variants

Column

A named table column.

Fields

name: &'static str

Physical column name.

length: Option<u32>

Optional prefix length.

order: Option<IndexOrder>

Optional key-part direction.

Expression

A trusted functional-index SQL expression.

Fields

sql: &'static str

Raw expression SQL without the outer MySQL key-part parentheses.

order: Option<IndexOrder>

Optional key-part direction.

Trait Implementations

impl Clone for IndexKeyPart

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for IndexKeyPart

impl Debug for IndexKeyPart

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

Formats the value using the given formatter.

impl Eq for IndexKeyPart

impl Hash for IndexKeyPart

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 IndexKeyPart

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for IndexKeyPart