Enum Trigger 

pub enum Trigger {
    Shape {
        runs: u8,
        tables: u16,
    },
    Size,
    Never,
}

When a level compacts.

Variants

Shape

When its runs reach runs, or its tables reach tables: a level of runs that accumulate, read once per run, compacts by its shape.

Runs are counted as a read meets them: tables that overlap no table of a run join it, so batches of disjoint keys make one run, read once. tables is what bounds such a level’s size.

Fields

runs: u8

The run count that triggers it.

tables: u16

The table count that triggers it whatever the run count.

Size

When its bytes pass the target the level’s place in the tree gives it, by how far past.

Never

Never on its own: the level only receives compactions. It takes no free move either, into the level below or into the last.

Trait Implementations

impl Clone for Trigger

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Trigger

impl Debug for Trigger

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

Formats the value using the given formatter.

impl Eq for Trigger

impl PartialEq for Trigger

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Trigger