[−][src]Enum parquet::column::page::Page
Parquet Page definition.
List of supported pages.
These are 1-to-1 mapped from the equivalent Thrift definitions, except buf
which
used to store uncompressed bytes of the page.
Variants
DataPage
Fields of DataPage
buf: ByteBufferPtr | |
num_values: u32 | |
encoding: Encoding | |
def_level_encoding: Encoding | |
rep_level_encoding: Encoding | |
statistics: Option<Statistics> |
DataPageV2
Fields of DataPageV2
buf: ByteBufferPtr | |
num_values: u32 | |
encoding: Encoding | |
num_nulls: u32 | |
num_rows: u32 | |
def_levels_byte_len: u32 | |
rep_levels_byte_len: u32 | |
is_compressed: bool | |
statistics: Option<Statistics> |
DictionaryPage
Fields of DictionaryPage
buf: ByteBufferPtr | |
num_values: u32 | |
encoding: Encoding | |
is_sorted: bool |
Methods
impl Page
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impl Page
pub fn page_type(&self) -> PageType
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pub fn page_type(&self) -> PageType
Returns PageType
for this page.
pub fn buffer(&self) -> &ByteBufferPtr
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pub fn buffer(&self) -> &ByteBufferPtr
Returns internal byte buffer reference for this page.
pub fn num_values(&self) -> u32
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pub fn num_values(&self) -> u32
Returns number of values in this page.
pub fn encoding(&self) -> Encoding
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pub fn encoding(&self) -> Encoding
Returns this page Encoding
.
pub fn statistics(&self) -> Option<&Statistics>
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pub fn statistics(&self) -> Option<&Statistics>
Returns optional Statistics
.
Auto Trait Implementations
Blanket Implementations
impl<T> From for T
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impl<T> From for T
impl<T, U> Into for T where
U: From<T>,
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impl<T, U> Into for T where
U: From<T>,
impl<T, U> TryFrom for T where
T: From<U>,
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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>
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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,
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impl<T> Borrow for T where
T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId
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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,
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impl<T> BorrowMut for T where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T, U> TryInto for T where
U: TryFrom<T>,
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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>
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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
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impl<E> SpecializationError for E
fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized,
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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
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impl<T> Sync for T where
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impl<T> Erased for T
impl<T> Erased for T