Enum Codec 

pub enum Codec {
    Zstd,
    Lz4,
    Uncompressed,
}

Compression codec applied when writing new array blocks.

The codec is stored per-variable in atlas.json so that each array can be reopened with the correct codec regardless of the store-level default. Existing blocks are always decompressed using whatever codec they were originally written with, so the choice only affects the write path.

Also reused for metadata compression via StoreConfig::meta_compression — the same three options apply.

Variants

Zstd

Zstd compression (default). Best compression ratio at moderate speed.

Lz4

LZ4 compression. Faster than Zstd, larger files.

Uncompressed

No compression. Fastest write path, no size reduction.

Trait Implementations

impl Clone for Codec

fn clone(&self) -> Codec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Codec

impl Debug for Codec

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

Formats the value using the given formatter.

impl Default for Codec

fn default() -> Codec

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Codec

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Codec

impl PartialEq for Codec

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Codec

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Codec