Struct ReadConfig 

pub struct ReadConfig {
    pub infer_types: InferTypes,
    pub parquet_schema: ParquetSchema,
    pub decompress_in_memory: bool,
    pub temp_dir: Option<String>,
    pub follow_interval: Interval,
    pub exact_count_files: usize,
    pub memory_warning: ByteSize,
    pub audio_float: bool,
}

[read]: how files are read.

Fields

infer_types: InferTypes

Which string columns are typed: all, none, or those named.

parquet_schema: ParquetSchema

How a partitioned Parquet dataset’s schema is found.

decompress_in_memory: bool

Decompress a compressed CSV, TSV or PSV into memory instead of to a temp file.

temp_dir: Option<String>

Directory for decompression temp files. Unset: the system’s (e.g. TMPDIR).

follow_interval: Interval

--follow: how often a followed file is checked (on Linux, where changes are notified, the least time between reads). Appends within one interval are one refresh.

exact_count_files: usize

Datasets of more files than this show an estimated row count until asked to count exactly. 0 always counts.

memory_warning: ByteSize

Ask before reading more than this of a file whole into memory (JSON, Avro, ORC, Excel and other in-memory formats). 0 never asks.

audio_float: bool

Integer audio samples as float in [-1, 1].

Implementations

impl ReadConfig

pub fn memory_warning(&self) -> Option<u64>

The bytes past which an in-memory read asks first; None when 0.

Trait Implementations

impl Clone for ReadConfig

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ReadConfig

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

Formats the value using the given formatter.

impl Default for ReadConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ReadConfig

where ReadConfig: Default,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ReadConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.