Struct ZoneMapBuilder 

pub struct ZoneMapBuilder { /* private fields */ }

Incrementally builds a zone map entry as you add values.

Feed it values one at a time; it tracks min/max/nulls automatically.

By default, Bloom filters are enabled for efficient equality checks. Use without_bloom_filter if you don’t need them.

Implementations

impl ZoneMapBuilder

pub fn new() -> Self

Creates a new zone map builder with Bloom filter enabled by default.

Uses reasonable defaults:

• Expected items: 2048 (typical chunk size)
• False positive rate: 1%

pub fn without_bloom_filter() -> Self

Creates a builder without Bloom filter support.

Use this when you know you won’t need equality checks, or when memory is constrained and the Bloom filter overhead isn’t worth it.

pub fn with_bloom_filter( expected_items: usize, false_positive_rate: f64, ) -> Self

Creates a builder with custom Bloom filter settings.

Arguments

• expected_items - Expected number of items in the chunk
• false_positive_rate - Desired false positive rate (e.g., 0.01 for 1%)

pub fn add(&mut self, value: &Value)

Adds a value to the zone map.

pub fn build(self) -> ZoneMapEntry

Builds the zone map entry.

Trait Implementations

impl Default for ZoneMapBuilder

fn default() -> Self

Returns the “default value” for a type.