Struct KeyGcOptions 

pub struct KeyGcOptions {
    pub max_versions_examined: usize,
    pub collapse_final_tombstones: bool,
}

Options for a read-only, single-key garbage-collection plan.

Fields

max_versions_examined: usize

Maximum number of obsolete, pre-keeper version timestamps to examine.

The planner also performs a fixed number of bounded point lookups to locate the safe-point keeper and determine whether it is the latest committed version. Those point lookups do not consume this history-page budget.

collapse_final_tombstones: bool

Explicit opt-in retention policy for final tombstones.

Callers using this opt-in feature MUST ensure that the safe point is derived from a monotonic log index and that no future read or write will occur below this safe point, as collapsing final tombstones changes read_with_version and guard history semantics below the safe point.

Trait Implementations

impl Clone for KeyGcOptions

fn clone(&self) -> KeyGcOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for KeyGcOptions

impl Debug for KeyGcOptions

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

Formats the value using the given formatter.

impl Eq for KeyGcOptions

impl PartialEq for KeyGcOptions

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for KeyGcOptions