Struct datafusion::config::ColumnOptions

pub struct ColumnOptions {
    pub bloom_filter_enabled: Option<bool>,
    pub encoding: Option<String>,
    pub dictionary_enabled: Option<bool>,
    pub compression: Option<String>,
    pub statistics_enabled: Option<String>,
    pub bloom_filter_fpp: Option<f64>,
    pub bloom_filter_ndv: Option<u64>,
    pub max_statistics_size: Option<usize>,
}

Fields

bloom_filter_enabled: Option<bool>

Sets if bloom filter is enabled for the column path.

encoding: Option<String>

Sets encoding for the column path. Valid values are: plain, plain_dictionary, rle, bit_packed, delta_binary_packed, delta_length_byte_array, delta_byte_array, rle_dictionary, and byte_stream_split. These values are not case-sensitive. If NULL, uses default parquet options

dictionary_enabled: Option<bool>

Sets if dictionary encoding is enabled for the column path. If NULL, uses default parquet options

compression: Option<String>

Sets default parquet compression codec for the column path. Valid values are: uncompressed, snappy, gzip(level), lzo, brotli(level), lz4, zstd(level), and lz4_raw. These values are not case-sensitive. If NULL, uses default parquet options

statistics_enabled: Option<String>

Sets if statistics are enabled for the column Valid values are: “none”, “chunk”, and “page” These values are not case sensitive. If NULL, uses default parquet options

bloom_filter_fpp: Option<f64>

Sets bloom filter false positive probability for the column path. If NULL, uses default parquet options

bloom_filter_ndv: Option<u64>

Sets bloom filter number of distinct values. If NULL, uses default parquet options

max_statistics_size: Option<usize>

Sets max statistics size for the column path. If NULL, uses default parquet options

Trait Implementations

impl Clone for ColumnOptions

fn clone(&self) -> ColumnOptions

Returns a copy of the value.

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

Performs copy-assignment from source.

impl ConfigField for ColumnOptions

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,

impl Debug for ColumnOptions

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

Formats the value using the given formatter.

impl Default for ColumnOptions

fn default() -> ColumnOptions

Returns the “default value” for a type.

impl PartialEq for ColumnOptions

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ColumnOptions