Enum CompactionTrigger 

pub enum CompactionTrigger {
    L0Overlap,
    LevelSize,
    MultiTableLevel,
    TombstoneDebt,
}

Reason the compaction picker selected a compaction input.

Variants

L0Overlap

Level-0 tables overlapped each other or the next level and needed to be closed into a safe output range.

LevelSize

A non-level-0 table level was above its configured byte target.

MultiTableLevel

No higher-priority trigger existed, but a shallow non-level-0 level had multiple tables in the requested range that could be merged downward.

TombstoneDebt

A non-bottom table carried range tombstones with overlapping lower-level data, so it was compacted downward to let the tombstone meet and drop the data it covers instead of lingering on the read path.

Trait Implementations

impl Clone for CompactionTrigger

fn clone(&self) -> CompactionTrigger

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CompactionTrigger

impl Debug for CompactionTrigger

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

Formats the value using the given formatter.

impl Eq for CompactionTrigger

impl Ord for CompactionTrigger

fn cmp(&self, other: &CompactionTrigger) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for CompactionTrigger

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for CompactionTrigger

fn partial_cmp(&self, other: &CompactionTrigger) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for CompactionTrigger