Enum PredicateValue 

#[non_exhaustive]
pub enum PredicateValue {
    Numeric(f64),
    Integer(i64),
    String(String),
}

The value side of a scan predicate.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Numeric(f64)

A numeric threshold (f64 for float columns, or integral f64 for i64 columns whose value fits within ±2^53 exactly).

Integer(i64)

An exact integer threshold for i64/timestamp columns.

When the planner knows the predicate value is an integer it should use this variant so that values outside ±2^53 are compared losslessly against BlockStats.min_i64/max_i64.

String(String)

A string threshold for lexicographic comparison.

Trait Implementations

impl Clone for PredicateValue

fn clone(&self) -> PredicateValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PredicateValue

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

Formats the value using the given formatter.