Struct InheritedNotNull 

pub struct InheritedNotNull {
    pub column: String,
    pub name: Option<String>,
    pub parents: usize,
}

A NOT NULL constraint the parents give a column: the first parent’s constraint name and how many parents give it.

Fields

column: String

name: Option<String>

parents: usize

Implementations

impl InheritedNotNull

pub fn record(inherited: &mut Vec<Self>, column: &str, name: Option<&str>)

Record a parent’s constraint on column after the ones earlier parents gave: the first parent’s name is kept, as AddRelationNotNullConstraints keeps the first name it comes across.

Trait Implementations

impl Clone for InheritedNotNull

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InheritedNotNull

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

Formats the value using the given formatter.

impl Eq for InheritedNotNull

impl PartialEq for InheritedNotNull

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for InheritedNotNull