Enum ValueHandle 

pub enum ValueHandle<'a> {
    Direct(&'a [u8]),
    BlockOffset {
        block_id: u32,
        offset: u32,
        len: u32,
    },
    ArenaSlot {
        arena_id: u32,
        slot: u32,
    },
}

Handle for late value materialization

Instead of copying values upfront, we store a handle that can materialize the value on-demand when needed.

Variants

Direct(&'a [u8])

Direct reference (zero-copy for inmemory data)

BlockOffset

Offset in a data block (for disk-resident data)

Fields

block_id: u32

offset: u32

len: u32

ArenaSlot

Deferred load from arena

Fields

arena_id: u32

slot: u32

Implementations

impl<'a> ValueHandle<'a>

pub fn materialize(&self) -> Option<&'a [u8]>

Materialize the value (called only for visible rows)

Trait Implementations

impl<'a> Clone for ValueHandle<'a>

fn clone(&self) -> ValueHandle<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for ValueHandle<'a>

impl<'a> Debug for ValueHandle<'a>

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

Formats the value using the given formatter.