Struct ColumnChange 

#[non_exhaustive]
pub struct ColumnChange {
    pub name: String,
    pub null_pct_a: Option<f64>,
    pub null_pct_b: Option<f64>,
    pub null_pct_delta: Option<f64>,
}

One column’s change. Serialized as an entry of the columns object, keyed by the column’s name. Each side’s number covers what that side’s scan read; see ReportReference::evidence.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

name: String

The column’s name.

null_pct_a: Option<f64>

Null percentage in a, or None when a has no such column or the column holds no values.

null_pct_b: Option<f64>

Null percentage in b, under the same rules.

null_pct_delta: Option<f64>

null_pct_b - null_pct_a, when both are present. Positive means more nulls.

Trait Implementations

impl Clone for ColumnChange

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnChange

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

Formats the value using the given formatter.

impl PartialEq for ColumnChange

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ColumnChange

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ColumnChange