Struct Index 

pub struct Index {
    pub name: IndexName,
    pub columns: Vec<ColumnName>,
    pub unique: bool,
}

An index whose column order is semantic.

Fields

name: IndexName

Stable index name.

columns: Vec<ColumnName>

Indexed columns in key order.

unique: bool

Whether the provider must enforce uniqueness.

Trait Implementations

impl Clone for Index

fn clone(&self) -> Index

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Index

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

Formats the value using the given formatter.

impl Eq for Index

impl PartialEq for Index

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Index

impl ToRelationDatum for Index

fn to_datum(&self) -> Datum

Returns the record’s single fixed Datum::Node projection.

fn card_datum(&self) -> Datum

Returns the same ordinary-data projection for Card consumers.

fn lisp_datum(&self) -> Datum

Returns the same ordinary-data projection for Lisp codecs.