Enum OperatorClassItem 

pub enum OperatorClassItem {
    Operator {
        strategy_number: u64,
        operator_name: ObjectName,
        op_types: Option<OperatorArgTypes>,
        purpose: Option<OperatorPurpose>,
    },
    Function {
        support_number: u64,
        op_types: Option<Vec<DataType>>,
        function_name: ObjectName,
        argument_types: Vec<DataType>,
    },
    Storage {
        storage_type: DataType,
    },
}

An item in a CREATE OPERATOR CLASS statement

Variants

Operator

OPERATOR clause describing a specific operator implementation.

Fields

strategy_number: u64

Strategy number identifying the operator position in the opclass.

operator_name: ObjectName

The operator name referenced by this clause.

op_types: Option<OperatorArgTypes>

Optional operator argument types.

purpose: Option<OperatorPurpose>

Optional purpose such as FOR SEARCH or FOR ORDER BY.

Function

FUNCTION clause describing a support function for the operator class.

Fields

support_number: u64

Support function number for this entry.

op_types: Option<Vec<DataType>>

Optional function argument types for the operator class.

function_name: ObjectName

The function name implementing the support function.

argument_types: Vec<DataType>

Function argument types for the support function.

Storage

STORAGE clause specifying the storage type.

Fields

storage_type: DataType

The storage data type.

Trait Implementations

impl Clone for OperatorClassItem

fn clone(&self) -> OperatorClassItem

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OperatorClassItem

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

Formats the value using the given formatter.

impl Display for OperatorClassItem

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

Formats the value using the given formatter.

impl Hash for OperatorClassItem

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for OperatorClassItem

fn cmp(&self, other: &OperatorClassItem) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for OperatorClassItem

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for OperatorClassItem

fn partial_cmp(&self, other: &OperatorClassItem) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Visit for OperatorClassItem

fn visit<V>(&self, visitor: &mut V) -> ControlFlow<<V as Visitor>::Break>

where V: Visitor,

Visit this node with the provided Visitor.

impl VisitMut for OperatorClassItem

fn visit<V>(&mut self, visitor: &mut V) -> ControlFlow<<V as VisitorMut>::Break>

where V: VisitorMut,

Mutably visit this node with the provided VisitorMut.

impl Eq for OperatorClassItem

impl StructuralPartialEq for OperatorClassItem