Enum Generated 

pub enum Generated {
    No,
    Virtual,
    Stored,
}

Whether a column is computed, and if so whether the file holds it.

The distinction decides where every later column’s value sits in the record, so it is a variant rather than a flag: a stored generated column occupies a slot like any other column, a virtual one occupies none. A generated column with neither keyword written out is virtual, which was checked against a file rather than assumed.

Variants

No

Virtual

Stored

Implementations

impl Generated

pub fn is_generated(self) -> bool

pub fn is_virtual(self) -> bool

Whether the file holds no value for this column at all.

Trait Implementations

impl Clone for Generated

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 Generated

impl Debug for Generated

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

Formats the value using the given formatter.

impl Eq for Generated

impl PartialEq for Generated

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Generated