Enum ScanOrderTransform 

pub enum ScanOrderTransform {
    IdentityInt64,
    IdentityInt32,
    IdentityUtf8,
    CastUtf8ToInteger,
}

Value transformation to apply before sorting.

Used to enable sorting on columns that need type coercion or conversion.

Variants

IdentityInt64

Sort 64-bit integers as-is.

IdentityInt32

Sort 32-bit integers as-is.

IdentityUtf8

Sort strings lexicographically.

CastUtf8ToInteger

Parse strings as integers, then sort numerically.

Trait Implementations

impl Clone for ScanOrderTransform

fn clone(&self) -> ScanOrderTransform

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScanOrderTransform

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

Formats the value using the given formatter.

impl PartialEq for ScanOrderTransform

fn eq(&self, other: &ScanOrderTransform) -> 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 Copy for ScanOrderTransform

impl Eq for ScanOrderTransform

impl StructuralPartialEq for ScanOrderTransform