Struct MemtableRange 

pub struct MemtableRange {
    context: MemtableRangeContextRef,
    stats: MemtableStats,
}

A range in the memtable.

Fields

context: MemtableRangeContextRef

Shared context.

stats: MemtableStats

Statistics for this memtable range.

Implementations

impl MemtableRange

pub fn new(context: MemtableRangeContextRef, stats: MemtableStats) -> Self

Creates a new range from context and stats.

pub fn stats(&self) -> &MemtableStats

Returns the statistics for this range.

pub fn id(&self) -> MemtableId

Returns the id of the memtable to read.

pub fn build_prune_iter( &self, time_range: FileTimeRange, metrics: Option<MemScanMetrics>, ) -> Result<BoxedBatchIterator>

Builds an iterator to read the range. Filters the result by the specific time range, this ensures memtable won’t return rows out of the time range when new rows are inserted.

pub fn build_iter(&self) -> Result<BoxedBatchIterator>

Builds an iterator to read all rows in range.

pub fn build_record_batch_iter( &self, time_range: Option<FileTimeRange>, metrics: Option<MemScanMetrics>, ) -> Result<BoxedRecordBatchIterator>

Builds a record batch iterator to read rows in range.

For mutable memtables (adapter path), applies time-range pruning to ensure rows outside the time range are filtered, matching the behavior of build_prune_iter.

pub fn record_batch_schema_hint(&self) -> Option<SchemaRef>

Returns a cheap schema hint for record batches yielded by this range.

pub fn is_record_batch(&self) -> bool

Returns whether the iterator is a record batch iterator.

pub fn num_rows(&self) -> usize

pub fn encoded(&self) -> Option<EncodedRange>

Returns the encoded range if available.

Trait Implementations

impl Clone for MemtableRange

fn clone(&self) -> MemtableRange

Returns a duplicate of the value.

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

Performs copy-assignment from source.