Struct ZoneMapIndex 

pub struct ZoneMapIndex { /* private fields */ }

Collection of zone maps for all chunks of a property column.

Use filter_equal or filter_range to get chunk IDs that might contain matching values.

Implementations

impl ZoneMapIndex

pub fn new(property: impl Into<String>) -> Self

Creates a new zone map index for a property.

pub fn property(&self) -> &str

Returns the property name.

pub fn insert(&mut self, chunk_id: u64, entry: ZoneMapEntry)

Adds or updates a zone map entry for a chunk.

pub fn get(&self, chunk_id: u64) -> Option<&ZoneMapEntry>

Gets the zone map entry for a chunk.

pub fn remove(&mut self, chunk_id: u64) -> Option<ZoneMapEntry>

Removes the zone map entry for a chunk.

pub fn len(&self) -> usize

Returns the number of chunks with zone maps.

pub fn is_empty(&self) -> bool

Returns true if there are no zone maps.

pub fn filter_equal<'a>( &'a self, value: &'a Value, chunk_ids: impl Iterator<Item = u64> + 'a, ) -> impl Iterator<Item = u64> + 'a

Filters chunk IDs that might match an equality predicate.

pub fn filter_range<'a>( &'a self, lower: Option<&'a Value>, upper: Option<&'a Value>, lower_inclusive: bool, upper_inclusive: bool, chunk_ids: impl Iterator<Item = u64> + 'a, ) -> impl Iterator<Item = u64> + 'a

Filters chunk IDs that might match a range predicate.

pub fn chunks_ordered_by_min(&self) -> Vec<u64>

Returns chunk IDs sorted by their minimum value.

pub fn overall_stats(&self) -> (Option<Value>, Option<Value>, u64, u64)

Returns overall statistics across all chunks.