Enum RowAddrRemap 

pub enum RowAddrRemap {
    Compact(CompactRowAddrRemap),
    Direct(HashMap<u64, Option<u64>>),
}

A queryable row-address remapping with the exact semantics of HashMap<u64, Option<u64>>::get(&addr).copied():

• None — the address is not affected by this remap (keep it unchanged)
• Some(None) — the row was deleted
• Some(Some(addr)) — the row moved to addr

Variants

Compact(CompactRowAddrRemap)

Compact, O(#fragments) remap built from per-group rewritten-row bitmaps and new-fragment layouts.

Direct(HashMap<u64, Option<u64>>)

Full materialized old-to-new address map. Uses O(#rows) memory.

Implementations

impl RowAddrRemap

pub fn compact(groups: impl IntoIterator<Item = GroupInput>) -> Result<Self>

pub fn direct(map: HashMap<u64, Option<u64>>) -> Self

Build a remap from a fully materialized old-to-new address map.

pub fn chained(remaps: impl IntoIterator<Item = Self>) -> Self

Build an ordered remap chain, flattening nested chains and omitting empty remaps.

pub fn empty() -> Self

An empty remap that leaves every address unchanged.

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

Look up addr. See RowAddrRemap for the tri-state return semantics.

pub fn remap_in_place(&self, row_addrs: &mut [Option<u64>])

Apply this remap to a batch in place.

A None input remains deleted. An address missing from a remap remains unchanged. Chained remaps are applied version-by-version so this path is suitable for bulk index and transaction remapping without materializing a composed per-row map.

pub fn is_empty(&self) -> bool

pub fn affected_fragments(&self) -> RoaringBitmap

pub fn fully_deleted_fragments(&self) -> Option<RoaringBitmap>

Trait Implementations

impl Clone for RowAddrRemap

fn clone(&self) -> RowAddrRemap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RowAddrRemap

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

Formats the value using the given formatter.

impl DeepSizeOf for RowAddrRemap

fn deep_size_of_children(&self, context: &mut Context) -> usize

fn deep_size_of(&self) -> usize

impl Eq for RowAddrRemap

impl PartialEq for RowAddrRemap

fn eq(&self, other: &RowAddrRemap) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for RowAddrRemap