Enum ParquetCompression 

#[non_exhaustive]
pub enum ParquetCompression {
    Uncompressed,
    Snappy,
    Gzip,
    Lz4Raw,
    Brotli,
    Zstd,
}

Parquet compression algorithm.

This enum is #[non_exhaustive]: new codec variants may be added in minor releases. Match with a wildcard arm to remain forward-compatible.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Uncompressed

No compression.

Snappy

Snappy compression (fast, moderate ratio).

Gzip

Gzip compression (levels 0-9).

Lz4Raw

LZ4 raw compression.

Brotli

Brotli compression (levels 0-11).

Zstd

Zstandard compression (levels 0-22).

Trait Implementations

impl Clone for ParquetCompression

fn clone(&self) -> ParquetCompression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParquetCompression

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

Formats the value using the given formatter.

impl Display for ParquetCompression

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

Formats the value using the given formatter.

impl FromStr for ParquetCompression

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a codec name (case-insensitive) into a ParquetCompression.

Accepted values: "uncompressed", "snappy", "gzip", "lz4-raw" (or "lz4raw"), "brotli", "zstd".

Errors

Returns ReadStatError::UnknownFormat for unrecognized codec names.

type Err = ReadStatError

The associated error which can be returned from parsing.

impl Hash for ParquetCompression

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ParquetCompression

fn eq(&self, other: &ParquetCompression) -> 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 Copy for ParquetCompression

impl Eq for ParquetCompression

impl StructuralPartialEq for ParquetCompression