Enum TableConstraintType 

pub enum TableConstraintType<'a> {
    Unique {
        unique_span: Span,
        nulls_clause: Option<(Span, Option<Span>)>,
        cols: Vec<Identifier<'a>>,
    },
    PrimaryKey {
        primary_span: Span,
        key_span: Span,
        cols: Vec<Identifier<'a>>,
    },
    Check {
        check_span: Span,
        expr: Expression<'a>,
    },
}

Table constraint types for ADD CONSTRAINT

Variants

Unique

Fields

unique_span: Span

nulls_clause: Option<(Span, Option<Span>)>

cols: Vec<Identifier<'a>>

PrimaryKey

Fields

primary_span: Span

key_span: Span

cols: Vec<Identifier<'a>>

Check

Fields

check_span: Span

expr: Expression<'a>

Trait Implementations

impl<'a> Clone for TableConstraintType<'a>

fn clone(&self) -> TableConstraintType<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for TableConstraintType<'a>

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

Formats the value using the given formatter.