[−][src]Struct parquet_format::DataPageHeaderV2
New page format allowing reading levels without decompressing the data Repetition and definition levels are uncompressed The remaining section containing the data is compressed if is_compressed is true
Fields
num_values: i32
Number of values, including NULLs, in this data page. *
num_nulls: i32
Number of NULL values, in this data page. Number of non-null = num_values - num_nulls which is also the number of values in the data section *
num_rows: i32
Number of rows in this data page. which means pages change on record boundaries (r = 0) *
encoding: Encoding
Encoding used for data in this page *
definition_levels_byte_length: i32
length of the definition levels
repetition_levels_byte_length: i32
length of the repetition levels
is_compressed: Option<bool>
whether the values are compressed. Which means the section of the page between definition_levels_byte_length + repetition_levels_byte_length + 1 and compressed_page_size (included) is compressed with the compression_codec. If missing it is considered compressed
statistics: Option<Statistics>
optional statistics for this column chunk
Implementations
impl DataPageHeaderV2
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pub fn new<F7, F8>(
num_values: i32,
num_nulls: i32,
num_rows: i32,
encoding: Encoding,
definition_levels_byte_length: i32,
repetition_levels_byte_length: i32,
is_compressed: F7,
statistics: F8
) -> DataPageHeaderV2 where
F7: Into<Option<bool>>,
F8: Into<Option<Statistics>>,
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num_values: i32,
num_nulls: i32,
num_rows: i32,
encoding: Encoding,
definition_levels_byte_length: i32,
repetition_levels_byte_length: i32,
is_compressed: F7,
statistics: F8
) -> DataPageHeaderV2 where
F7: Into<Option<bool>>,
F8: Into<Option<Statistics>>,
pub fn read_from_in_protocol(
i_prot: &mut dyn TInputProtocol
) -> Result<DataPageHeaderV2>
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i_prot: &mut dyn TInputProtocol
) -> Result<DataPageHeaderV2>
pub fn write_to_out_protocol(
&self,
o_prot: &mut dyn TOutputProtocol
) -> Result<()>
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&self,
o_prot: &mut dyn TOutputProtocol
) -> Result<()>
Trait Implementations
impl Clone for DataPageHeaderV2
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pub fn clone(&self) -> DataPageHeaderV2
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pub fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Debug for DataPageHeaderV2
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impl Eq for DataPageHeaderV2
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impl Hash for DataPageHeaderV2
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pub fn hash<__H: Hasher>(&self, state: &mut __H)
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pub fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
impl Ord for DataPageHeaderV2
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pub fn cmp(&self, other: &DataPageHeaderV2) -> Ordering
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#[must_use]pub fn max(self, other: Self) -> Self
1.21.0[src]
#[must_use]pub fn min(self, other: Self) -> Self
1.21.0[src]
#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self
1.50.0[src]
impl PartialEq<DataPageHeaderV2> for DataPageHeaderV2
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pub fn eq(&self, other: &DataPageHeaderV2) -> bool
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pub fn ne(&self, other: &DataPageHeaderV2) -> bool
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impl PartialOrd<DataPageHeaderV2> for DataPageHeaderV2
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pub fn partial_cmp(&self, other: &DataPageHeaderV2) -> Option<Ordering>
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pub fn lt(&self, other: &DataPageHeaderV2) -> bool
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pub fn le(&self, other: &DataPageHeaderV2) -> bool
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pub fn gt(&self, other: &DataPageHeaderV2) -> bool
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pub fn ge(&self, other: &DataPageHeaderV2) -> bool
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impl StructuralEq for DataPageHeaderV2
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impl StructuralPartialEq for DataPageHeaderV2
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Auto Trait Implementations
impl RefUnwindSafe for DataPageHeaderV2
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impl Send for DataPageHeaderV2
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impl Sync for DataPageHeaderV2
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impl Unpin for DataPageHeaderV2
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impl UnwindSafe for DataPageHeaderV2
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Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,