Struct RowMap 

pub struct RowMap {
    pub num_rows: usize,
    /* private fields */
}

Fields

num_rows: usize

Implementations

impl RowMap

pub fn key(&self, row_idx: usize) -> u64

Get a key at the given row index. Requires keys_data to be loaded (via load_full_keys). For point queries, use ColumnarSSTable::find_row_by_key which uses the sparse fence index instead.

pub fn has_full_keys_loaded(&self) -> bool

Check if full keys data has been loaded (for scan paths).

pub fn keys_file_offset(&self) -> u64

Get the file offset where the full keys array starts.

pub fn fence_keys(&self) -> &[u64]

Get the sparse fence keys for binary search.

pub fn fence_interval(&self) -> usize

Get the fence interval (rows per fence entry).

pub fn timestamp(&self, _row_idx: usize) -> u64

Read a timestamp at the given row index. Timestamps are NOT stored in the RowMap. Use timestamp_loaded() after load_all_timestamps().

pub fn has_timestamps_loaded(&self) -> bool

Check if timestamps have been lazy-loaded.

pub fn timestamp_loaded(&self, row_idx: usize) -> u64

Get a timestamp from the lazy-loaded buffer.

pub fn find_fence_range(&self, target: u64) -> Option<(usize, usize)>

Binary search using sparse fence index. Returns a row index RANGE [start, end) where the target key MAY exist. The caller reads a block of keys from disk to do the final lookup within this range. Returns None if the key is definitely not present.

pub fn find_key(&self, target: u64) -> Option<usize>

Binary search for a key. Requires full keys to be loaded (scan path). For point queries, use ColumnarSSTable::find_row_by_key instead.

pub fn is_deleted(&self, row_idx: usize) -> bool

pub fn has_any_deleted(&self) -> bool

Check if ANY row is marked deleted. O(1) when deleted_bitmap is None (the common case — no deletions). Previously this was O(N/8) scanning the bitmap bytes on every scan.

Trait Implementations

impl Clone for RowMap

fn clone(&self) -> RowMap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RowMap

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

Formats the value using the given formatter.