Struct CheckConstraint 

pub struct CheckConstraint {
    pub expr: String,
    pub owner_column: Option<String>,
}

A CHECK constraint together with its schema-level ownership.

SQLite drops a column-level CHECK with its owning column, while a table-level CHECK or a CHECK owned by another column remains a dependency that can prevent ALTER TABLE ... DROP COLUMN.

Fields

expr: String

Constraint expression as SQL text.

owner_column: Option<String>

Owning column for a column-level CHECK; None for table-level CHECKs.

Trait Implementations

impl Clone for CheckConstraint

fn clone(&self) -> CheckConstraint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CheckConstraint

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

Formats the value using the given formatter.

impl Eq for CheckConstraint

impl PartialEq for CheckConstraint

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CheckConstraint