Enum ScalarValue 

pub enum ScalarValue {
    Boolean(Option<bool>),
    Int8(Option<i8>),
    Int16(Option<i16>),
    Int32(Option<i32>),
    Int64(Option<i64>),
    UInt8(Option<u8>),
    UInt16(Option<u16>),
    UInt32(Option<u32>),
    UInt64(Option<u64>),
    Float32(Option<f32>),
    Float64(Option<f64>),
    Varchar(Option<String>),
}

Variants

Boolean(Option<bool>)

Int8(Option<i8>)

Int16(Option<i16>)

Int32(Option<i32>)

Int64(Option<i64>)

UInt8(Option<u8>)

UInt16(Option<u16>)

UInt32(Option<u32>)

UInt64(Option<u64>)

Float32(Option<f32>)

Float64(Option<f64>)

Varchar(Option<String>)

Implementations

impl ScalarValue

pub fn new_empty(data_type: DataType) -> Self

pub fn data_type(&self) -> DataType

pub fn is_null(&self) -> bool

pub fn cast_to(&self, data_type: &DataType) -> QuillSQLResult<Self>

Try to cast this value to a ScalarValue of type data_type

pub fn as_boolean(&self) -> QuillSQLResult<Option<bool>>

pub fn wrapping_add(&self, other: Self) -> QuillSQLResult<Self>

pub fn wrapping_sub(&self, other: Self) -> QuillSQLResult<Self>

pub fn wrapping_mul(&self, other: Self) -> QuillSQLResult<Self>

pub fn wrapping_div(&self, other: Self) -> QuillSQLResult<Self>

pub fn from_string(string: &str, data_type: DataType) -> QuillSQLResult<Self>

Trait Implementations

impl Clone for ScalarValue

fn clone(&self) -> ScalarValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScalarValue

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

Formats the value using the given formatter.

impl Display for ScalarValue

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

Formats the value using the given formatter.

impl From<Option<String>> for ScalarValue

fn from(value: Option<String>) -> Self

Converts to this type from the input type.

impl From<Option<bool>> for ScalarValue

fn from(value: Option<bool>) -> Self

Converts to this type from the input type.

impl From<Option<f32>> for ScalarValue

fn from(value: Option<f32>) -> Self

Converts to this type from the input type.

impl From<Option<f64>> for ScalarValue

fn from(value: Option<f64>) -> Self

Converts to this type from the input type.

impl From<Option<i16>> for ScalarValue

fn from(value: Option<i16>) -> Self

Converts to this type from the input type.

impl From<Option<i32>> for ScalarValue

fn from(value: Option<i32>) -> Self

Converts to this type from the input type.

impl From<Option<i64>> for ScalarValue

fn from(value: Option<i64>) -> Self

Converts to this type from the input type.

impl From<Option<i8>> for ScalarValue

fn from(value: Option<i8>) -> Self

Converts to this type from the input type.

impl From<Option<u16>> for ScalarValue

fn from(value: Option<u16>) -> Self

Converts to this type from the input type.

impl From<Option<u32>> for ScalarValue

fn from(value: Option<u32>) -> Self

Converts to this type from the input type.

impl From<Option<u64>> for ScalarValue

fn from(value: Option<u64>) -> Self

Converts to this type from the input type.

impl From<Option<u8>> for ScalarValue

fn from(value: Option<u8>) -> Self

Converts to this type from the input type.

impl From<String> for ScalarValue

fn from(value: String) -> Self

Converts to this type from the input type.

impl From<bool> for ScalarValue

fn from(value: bool) -> Self

Converts to this type from the input type.

impl From<f32> for ScalarValue

fn from(value: f32) -> Self

Converts to this type from the input type.

impl From<f64> for ScalarValue

fn from(value: f64) -> Self

Converts to this type from the input type.

impl From<i16> for ScalarValue

fn from(value: i16) -> Self

Converts to this type from the input type.

impl From<i32> for ScalarValue

fn from(value: i32) -> Self

Converts to this type from the input type.

impl From<i64> for ScalarValue

fn from(value: i64) -> Self

Converts to this type from the input type.

impl From<i8> for ScalarValue

fn from(value: i8) -> Self

Converts to this type from the input type.

impl From<u16> for ScalarValue

fn from(value: u16) -> Self

Converts to this type from the input type.

impl From<u32> for ScalarValue

fn from(value: u32) -> Self

Converts to this type from the input type.

impl From<u64> for ScalarValue

fn from(value: u64) -> Self

Converts to this type from the input type.

impl From<u8> for ScalarValue

fn from(value: u8) -> Self

Converts to this type from the input type.

impl Hash for ScalarValue

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 ScalarValue

fn eq(&self, other: &Self) -> 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 ScalarValue

fn partial_cmp(&self, other: &Self) -> 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 Eq for ScalarValue