Struct JsonOptions 

pub struct JsonOptions {
    pub compression: CompressionTypeVariant,
    pub compression_level: Option<u32>,
    pub schema_infer_max_rec: Option<usize>,
    pub newline_delimited: bool,
}

Options controlling JSON format

Fields

compression: CompressionTypeVariant

compression_level: Option<u32>

Compression level for the output file. The valid range depends on the compression algorithm:

• ZSTD: 1 to 22 (default: 3)
• GZIP: 0 to 9 (default: 6)
• BZIP2: 0 to 9 (default: 6)
• XZ: 0 to 9 (default: 6) If not specified, the default level for the compression algorithm is used.

schema_infer_max_rec: Option<usize>

newline_delimited: bool

The JSON format to use when reading files.

When true (default), expects newline-delimited JSON (NDJSON):

{"key1": 1, "key2": "val"}
{"key1": 2, "key2": "vals"}

When false, expects JSON array format:

[
  {"key1": 1, "key2": "val"},
  {"key1": 2, "key2": "vals"}
]

Trait Implementations

impl Clone for JsonOptions

fn clone(&self) -> JsonOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ConfigField for JsonOptions

fn set(&mut self, key: &str, value: &str) -> Result<(), DataFusionError>

fn visit<V>(&self, v: &mut V, key_prefix: &str, _description: &'static str)

where V: Visit,

fn reset(&mut self, key: &str) -> Result<(), DataFusionError>

impl Debug for JsonOptions

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

Formats the value using the given formatter.

impl Default for JsonOptions

fn default() -> JsonOptions

Returns the “default value” for a type.

impl From<&JsonOptions> for JsonOptions

fn from(proto: &JsonOptions) -> JsonOptions

Converts to this type from the input type.

impl PartialEq for JsonOptions

fn eq(&self, other: &JsonOptions) -> 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 StructuralPartialEq for JsonOptions

impl TryFrom<&JsonOptions> for JsonWriterOptions

type Error = DataFusionError

The type returned in the event of a conversion error.

fn try_from(value: &JsonOptions) -> Result<JsonWriterOptions, DataFusionError>

Performs the conversion.

impl TryFrom<&JsonOptions> for JsonOptions

type Error = DataFusionError

The type returned in the event of a conversion error.

fn try_from( proto_opts: &JsonOptions, ) -> Result<JsonOptions, <JsonOptions as TryFrom<&JsonOptions>>::Error>

Performs the conversion.