Enum Format 

pub enum Format {
    CsvGz,
    Csv,
    Parquet,
}

The storage encoding of a data object, inferred from its leading bytes.

Variants

CsvGz

gzip-compressed CSV — the default per-symbol/panel write format (.csv.gz).

Csv

Uncompressed CSV text (.csv).

Parquet

Apache Parquet (.parquet).

Implementations

impl Format

pub fn detect(bytes: &[u8]) -> Format

Infer the format from a buffer’s magic bytes. gzip starts 1f 8b, Parquet files start (and end) with the ASCII marker PAR1; anything else is treated as plain CSV text.

Trait Implementations

impl Clone for Format

fn clone(&self) -> Format

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Format

impl Debug for Format

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

Formats the value using the given formatter.

impl Eq for Format

impl PartialEq for Format

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Format