Enum udf::SqlType

#[non_exhaustive]
#[repr(i8)]
pub enum SqlType {
    Int,
    Real,
    String,
    Decimal,
}

Enum representing possible SQL result types

This simply represents the possible types, but does not contain any values. SqlResult is the corresponding enum that actually contains data.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Int

Integer result

Real

Real result

String

String result

Decimal

Decimal result

Implementations

impl SqlType

pub fn to_item_result(&self) -> Item_result

Convert this enum to a SQL Item_result. This is only useful if you work with udf_sys bindings directly.

pub fn display_name(&self) -> &'static str

Small helper function to get a displayable type name.

Trait Implementations

impl Clone for SqlType

fn clone(&self) -> SqlType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SqlType

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

Formats the value using the given formatter.

impl PartialEq<SqlType> for SqlType

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

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

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

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

impl TryFrom<&SqlResult<'_>> for SqlType

fn try_from(tag: &SqlResult<'_>) -> Result<Self, Self::Error>

Create an SqlType from an SqlResult

type Error = String

The type returned in the event of a conversion error.

impl TryFrom<Item_result> for SqlType

fn try_from(tag: Item_result) -> Result<Self, Self::Error>

Create an SqlType from an Item_result, located in the bindings module.

type Error = String

The type returned in the event of a conversion error.

impl TryFrom<i8> for SqlType

fn try_from(tag: i8) -> Result<Self, Self::Error>

Create an SqlType from an integer

type Error = String

The type returned in the event of a conversion error.

impl Copy for SqlType

impl Eq for SqlType

impl StructuralEq for SqlType

impl StructuralPartialEq for SqlType