Struct DistinctTracker 

pub struct DistinctTracker { /* private fields */ }

Helper struct for tracking distinct values

Uses AHashSet directly instead of converting to strings, avoiding allocation overhead for each value. AHash provides better performance for complex keys like Value.

Implementations

impl DistinctTracker

pub fn check_and_add(&mut self, value: &Value) -> bool

Check if a value has been seen before (returns true if new) Note: Caller must ensure value is not NULL before calling

pub fn check_and_add_with_null_check(&mut self, value: &Value) -> bool

Check if a value has been seen before, with null handling (returns true if new)

pub fn count(&self) -> usize

Get the count of distinct values

pub fn reset(&mut self)

Reset the tracker

Trait Implementations

impl Debug for DistinctTracker

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

Formats the value using the given formatter.

impl Default for DistinctTracker

fn default() -> DistinctTracker

Returns the “default value” for a type.