Enum ColumnType 

pub enum ColumnType {
    Bool,
    Int,
    Float,
    Text,
    Timestamp,
    Unknown,
}

Coarse SQL type taxonomy used during validation and lowering.

Variants

Bool

Boolean.

Int

Signed integer.

Float

Floating-point.

Text

UTF-8 text.

Timestamp

Timestamp (with or without timezone).

Unknown

Type couldn’t be inferred yet — treat as compatible with anything.

Implementations

impl ColumnType

pub const fn is_numeric(self) -> bool

True for Self::Int and Self::Float.

pub fn is_compatible_with(self, other: Self) -> bool

Whether two column types are interchangeable in a comparison or arithmetic context. Unknown is compatible with everything; numerics promote to each other.

Trait Implementations

impl Clone for ColumnType

fn clone(&self) -> ColumnType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ColumnType

impl Debug for ColumnType

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

Formats the value using the given formatter.

impl Eq for ColumnType

impl Hash for ColumnType

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 Ord for ColumnType

fn cmp(&self, other: &ColumnType) -> 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 ColumnType

fn eq(&self, other: &ColumnType) -> 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 ColumnType

fn partial_cmp(&self, other: &ColumnType) -> 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 StructuralPartialEq for ColumnType