Struct OrcReadOptions 

pub struct OrcReadOptions {
    pub batch_size: Option<usize>,
    pub pushdown_predicate: bool,
    pub metadata_size_hint: Option<usize>,
}

Options that control how ORC files are read.

Fields

batch_size: Option<usize>

Optional batch size override used when a scan does not specify one.

pushdown_predicate: bool

Enable converting predicates into ORC stripe-level filters.

metadata_size_hint: Option<usize>

Optional metadata size hint for ORC footer reads.

Implementations

impl OrcReadOptions

pub fn with_batch_size(self, batch_size: usize) -> Self

Set a default batch size for ORC scans.

pub fn with_pushdown_predicate(self, pushdown_predicate: bool) -> Self

Enable or disable predicate pushdown into the ORC reader.

pub fn with_metadata_size_hint(self, metadata_size_hint: usize) -> Self

Provide a hint for how many bytes to read when fetching ORC metadata.

Trait Implementations

impl Clone for OrcReadOptions

fn clone(&self) -> OrcReadOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OrcReadOptions

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

Formats the value using the given formatter.

impl Default for OrcReadOptions

fn default() -> Self

Returns the “default value” for a type.