Enum Item_result 

#[non_exhaustive]
#[repr(C)]
pub enum Item_result {
    INVALID_RESULT = -1,
    STRING_RESULT = 0,
    REAL_RESULT = 1,
    INT_RESULT = 2,
    ROW_RESULT = 3,
    DECIMAL_RESULT = 4,
}

Type of the user defined function return slot and arguments

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.

INVALID_RESULT = -1

Invalid value (not valid for UDFs)

STRING_RESULT = 0

Value representing a string (char *)

REAL_RESULT = 1

Value representing a real (double)

INT_RESULT = 2

Value representing an int (long long)

ROW_RESULT = 3

Value representing a row (not valid for UDFs)

DECIMAL_RESULT = 4

Value representing a decimal (char *)

Trait Implementations

impl Clone for Item_result

fn clone(&self) -> Item_result

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Item_result

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

Formats the value using the given formatter.

impl Hash for Item_result

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

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 PartialEq for Item_result

fn eq(&self, other: &Item_result) -> 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 TryFrom<i32> for Item_result

type Error = String

The type returned in the event of a conversion error.

fn try_from(value: i32) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for Item_result

impl Eq for Item_result

impl StructuralPartialEq for Item_result