[−][src]Struct parquet::file::properties::WriterProperties
Writer properties.
It is created as an immutable data structure, use WriterPropertiesBuilder to
assemble the properties.
Methods
impl WriterProperties[src]
impl WriterPropertiespub fn builder() -> WriterPropertiesBuilder[src]
pub fn builder() -> WriterPropertiesBuilderReturns builder for writer properties with default values.
pub fn data_pagesize_limit(&self) -> usize[src]
pub fn data_pagesize_limit(&self) -> usizeReturns data page size limit.
pub fn dictionary_pagesize_limit(&self) -> usize[src]
pub fn dictionary_pagesize_limit(&self) -> usizeReturns dictionary page size limit.
pub fn write_batch_size(&self) -> usize[src]
pub fn write_batch_size(&self) -> usizeReturns configured batch size for writes.
When writing a batch of data, this setting allows to split it internally into smaller batches so we can better estimate the size of a page currently being written.
pub fn max_row_group_size(&self) -> usize[src]
pub fn max_row_group_size(&self) -> usizeReturns max size for a row group.
pub fn writer_version(&self) -> WriterVersion[src]
pub fn writer_version(&self) -> WriterVersionReturns configured writer version.
pub fn created_by(&self) -> &str[src]
pub fn created_by(&self) -> &strReturns created_by string.
pub fn dictionary_data_page_encoding(&self) -> Encoding[src]
pub fn dictionary_data_page_encoding(&self) -> EncodingReturns encoding for a data page, when dictionary encoding is enabled. This is not configurable.
pub fn dictionary_page_encoding(&self) -> Encoding[src]
pub fn dictionary_page_encoding(&self) -> EncodingReturns encoding for dictionary page, when dictionary encoding is enabled. This is not configurable.
pub fn encoding(&self, col: &ColumnPath) -> Encoding[src]
pub fn encoding(&self, col: &ColumnPath) -> EncodingReturns encoding for a column. In case when dictionary is enabled, returns fallback encoding.
pub fn compression(&self, col: &ColumnPath) -> Compression[src]
pub fn compression(&self, col: &ColumnPath) -> CompressionReturns compression codec for a column.
pub fn dictionary_enabled(&self, col: &ColumnPath) -> bool[src]
pub fn dictionary_enabled(&self, col: &ColumnPath) -> boolReturns true if dictionary encoding is enabled for a column.
pub fn statistics_enabled(&self, col: &ColumnPath) -> bool[src]
pub fn statistics_enabled(&self, col: &ColumnPath) -> boolReturns true if statistics are enabled for a column.
pub fn max_statistics_size(&self, col: &ColumnPath) -> usize[src]
pub fn max_statistics_size(&self, col: &ColumnPath) -> usizeReturns max size for statistics. Only applicable if statistics are enabled.
Trait Implementations
impl Clone for WriterProperties[src]
impl Clone for WriterPropertiesfn clone(&self) -> WriterProperties[src]
fn clone(&self) -> WriterPropertiesReturns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)1.0.0[src]
fn clone_from(&mut self, source: &Self)Performs copy-assignment from source. Read more
impl Debug for WriterProperties[src]
impl Debug for WriterPropertiesAuto Trait Implementations
impl Send for WriterProperties
impl Send for WriterPropertiesimpl Sync for WriterProperties
impl Sync for WriterPropertiesBlanket Implementations
impl<T> From for T[src]
impl<T> From for Timpl<T, U> Into for T where
U: From<T>, [src]
impl<T, U> Into for T where
U: From<T>, impl<T> ToOwned for T where
T: Clone, [src]
impl<T> ToOwned for T where
T: Clone, type Owned = T
fn to_owned(&self) -> T[src]
fn to_owned(&self) -> TCreates owned data from borrowed data, usually by cloning. Read more
fn clone_into(&self, target: &mut T)[src]
fn clone_into(&self, target: &mut T)🔬 This is a nightly-only experimental API. (toowned_clone_into)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
impl<T, U> TryFrom for T where
T: From<U>, [src]
impl<T, U> TryFrom for T where
T: From<U>, type Error = !
try_from)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>try_from)Performs the conversion.
impl<T> Borrow for T where
T: ?Sized, [src]
impl<T> Borrow for T where
T: ?Sized, impl<T> Any for T where
T: 'static + ?Sized, [src]
impl<T> Any for T where
T: 'static + ?Sized, fn get_type_id(&self) -> TypeId[src]
fn get_type_id(&self) -> TypeId🔬 This is a nightly-only experimental API. (get_type_id)
this method will likely be replaced by an associated static
Gets the TypeId of self. Read more
impl<T> BorrowMut for T where
T: ?Sized, [src]
impl<T> BorrowMut for T where
T: ?Sized, fn borrow_mut(&mut self) -> &mut T[src]
fn borrow_mut(&mut self) -> &mut TMutably borrows from an owned value. Read more
impl<T, U> TryInto for T where
U: TryFrom<T>, [src]
impl<T, U> TryInto for T where
U: TryFrom<T>, type Error = <U as TryFrom<T>>::Error
try_from)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>try_from)Performs the conversion.
impl<T, U> TryInto for T where
U: TryFrom<T>,
impl<T, U> TryInto for T where
U: TryFrom<T>, impl<E> SpecializationError for E[src]
impl<E> SpecializationError for Efn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized, [src]
fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized, 🔬 This is a nightly-only experimental API. (rustc_private)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?
Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S is the encoder/decoder state type, T is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more
impl<T> Erased for T[src]
impl<T> Erased for Timpl<T> Send for T where
T: ?Sized, [src]
impl<T> Send for T where
T: ?Sized, impl<T> Sync for T where
T: ?Sized, [src]
impl<T> Sync for T where
T: ?Sized, impl<T> Erased for T
impl<T> Erased for T