Enum CastTarget 

pub enum CastTarget {
    Integer,
    Float,
    Boolean,
    Varchar,
    DateTime,
}

The set of target types CAST supports. We deliberately collapse SQL’s large “zoo” of character/numeric types down to the handful of types our engine actually stores in DataValue. This keeps CAST close to DuckDB’s observable behaviour without dragging in fixed-width CHAR, DECIMAL precision, etc.

Variants

Integer

Float

Boolean

Varchar

Any character type (VARCHAR/CHAR/TEXT/STRING/…) maps here.

DateTime

Any temporal type (DATE/DATETIME/TIMESTAMP/…) maps here.

Implementations

impl CastTarget

pub fn from_name(name: &str) -> Option<Self>

Map a SQL type name (already stripped of any precision/scale) onto one of our supported target types. Returns None for types we cannot represent.

Trait Implementations

impl Clone for CastTarget

fn clone(&self) -> CastTarget

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CastTarget

impl Debug for CastTarget

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

Formats the value using the given formatter.

impl PartialEq for CastTarget

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CastTarget