Enum mentat_query_algebrizer::ColumnConstraint

pub enum ColumnConstraint {
    Equals(QualifiedAlias, QueryValue),
    Inequality {
        operator: Inequality,
        left: QueryValue,
        right: QueryValue,
    },
    HasTypes {
        value: TableAlias,
        value_types: ValueTypeSet,
        check_value: bool,
    },
    NotExists(ComputedTable),
    Matches(QualifiedAlias, QueryValue),
}

Variants

Equals(QualifiedAlias, QueryValue)Inequality

Fields of Inequality

operator: Inequality
left: QueryValue
right: QueryValue

HasTypes

Fields of HasTypes

value: TableAlias
value_types: ValueTypeSet
check_value: bool

NotExists(ComputedTable)Matches(QualifiedAlias, QueryValue)

Methods

impl ColumnConstraint

pub fn has_unit_type(     value: TableAlias,     value_type: ValueType ) -> ColumnConstraint

Trait Implementations

impl PartialEq for ColumnConstraint

fn eq(&self, __arg_0: &ColumnConstraint) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &ColumnConstraint) -> bool

This method tests for !=.

impl Eq for ColumnConstraint

impl From<ColumnConstraint> for ColumnConstraintOrAlternation

fn from(thing: ColumnConstraint) -> Self

Performs the conversion.

impl Debug for ColumnConstraint

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

Formats the value using the given formatter.