Enum DataFormat 

pub enum DataFormat {
    Csv,
    Tsv,
    Adt,
    Parquet,
    Avro,
    JsonLines,
    Arrow,
    Json,
    JsonCompact,
    Excel,
    Orc,
}

Supported data formats for reading and writing

Variants

Csv

Comma-separated values

Tsv

Tab-separated values

Adt

ASCII Delimited Text (using ASCII control characters 28-31)

Parquet

Apache Parquet columnar format

Avro

Apache Avro row-based format

JsonLines

JSON Lines (newline-delimited JSON)

Arrow

Apache Arrow format

Json

Standard JSON (array of objects)

JsonCompact

Compact JSON (no pretty printing)

Excel

Microsoft Excel format (output only)

Orc

Apache ORC columnar format (output only)

Implementations

impl DataFormat

pub fn from_path(path: &Path) -> Result<DataFormat, Error>

Detect format from file extension

pub fn from_extension(ext: &str) -> Result<DataFormat, Error>

Detect format from file extension string

pub fn parse(s: &str) -> Result<DataFormat, Error>

Parse format from string (for CLI arguments)

pub fn default_extension(&self) -> &'static str

Get the default file extension for this format

pub fn supports_reading(&self) -> bool

Check if format supports reading

pub fn supports_writing(&self) -> bool

Check if format supports writing

pub fn supports_lazy_reading(&self) -> bool

Check if format supports lazy reading

pub fn supports_streaming(&self) -> bool

Check if format supports streaming

pub fn display_name(&self) -> &'static str

Get human-readable format name

Trait Implementations

impl Clone for DataFormat

fn clone(&self) -> DataFormat

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DataFormat

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DataFormat

fn deserialize<__D>( __deserializer: __D, ) -> Result<DataFormat, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for DataFormat

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

Formats the value using the given formatter.

impl FromStr for DataFormat

type Err = String

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<DataFormat, <DataFormat as FromStr>::Err>

Parses a string s to return a value of this type.

impl PartialEq for DataFormat

fn eq(&self, other: &DataFormat) -> 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 DataFormat

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for DataFormat

impl Eq for DataFormat

impl StructuralPartialEq for DataFormat