Enum tidb_query_datatype::def::eval_type::EvalType

pub enum EvalType {
    Int,
    Real,
    Decimal,
    Bytes,
    DateTime,
    Duration,
    Json,
    Enum,
    Set,
}

Function implementations’ parameter data types.

It is similar to the EvalType in TiDB, but doesn’t provide type Timestamp, which is handled by the same type as DateTime here, instead of a new type. Also, String is called Bytes here to be less confusing.

Variants

Int

Real

Decimal

Bytes

DateTime

Duration

Json

Enum

Set

Implementations

impl EvalType

pub fn into_certain_field_type_tp_for_test(self) -> FieldTypeTp

Converts EvalType into one of the compatible FieldTypeTps.

This function should be only useful in test scenarios that only cares about EvalType but accepts a FieldTypeTp.

Trait Implementations

impl Clone for EvalType

fn clone(&self) -> EvalType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for EvalType

impl Debug for EvalType

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

Formats the value using the given formatter.

impl Display for EvalType

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

Formats the value using the given formatter.

impl PartialEq<EvalType> for EvalType

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

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

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl StructuralPartialEq for EvalType

impl TryFrom<FieldTypeTp> for EvalType

type Error = DataTypeError

The type returned in the event of a conversion error.

fn try_from(tp: FieldTypeTp) -> Result<Self, DataTypeError>

Performs the conversion.