Enum Compression 

pub enum Compression {
    On {
        level: i32,
        min_len: usize,
    },
    Off,
}

Per-collection write-side compression policy. Reads always honor the per-row format byte regardless of policy, so flipping the policy never strands existing rows.

Variants

On

Compress rows of at least min_len encoded bytes at level, keeping the result only when it is strictly smaller than storing raw.

Fields

level: i32

zstd level (see DEFAULT_COMPRESSION_LEVEL).

min_len: usize

Encoded-value floor below which compression is not attempted.

Off

Never compress. Required for collections whose rows mix user-secret and attacker-influenced bytes (the length side-channel rule above).

Trait Implementations

impl Clone for Compression

fn clone(&self) -> Compression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Compression

impl Debug for Compression

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

Formats the value using the given formatter.

impl Default for Compression

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Compression

impl PartialEq for Compression

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Compression