Struct parquet_format_safe::ColumnChunk

pub struct ColumnChunk {
    pub file_path: Option<String>,
    pub file_offset: i64,
    pub meta_data: Option<ColumnMetaData>,
    pub offset_index_offset: Option<i64>,
    pub offset_index_length: Option<i32>,
    pub column_index_offset: Option<i64>,
    pub column_index_length: Option<i32>,
    pub crypto_metadata: Option<ColumnCryptoMetaData>,
    pub encrypted_column_metadata: Option<Vec<u8>>,
}

Fields

file_path: Option<String>

File where column data is stored. If not set, assumed to be same file as metadata. This path is relative to the current file.

file_offset: i64

Byte offset in file_path to the ColumnMetaData *

meta_data: Option<ColumnMetaData>

Column metadata for this chunk. This is the same content as what is at file_path/file_offset. Having it here has it replicated in the file metadata.

offset_index_offset: Option<i64>

File offset of ColumnChunk’s OffsetIndex *

offset_index_length: Option<i32>

Size of ColumnChunk’s OffsetIndex, in bytes *

column_index_offset: Option<i64>

File offset of ColumnChunk’s ColumnIndex *

column_index_length: Option<i32>

Size of ColumnChunk’s ColumnIndex, in bytes *

crypto_metadata: Option<ColumnCryptoMetaData>

Crypto metadata of encrypted columns *

encrypted_column_metadata: Option<Vec<u8>>

Encrypted column metadata for this chunk *

Implementations

impl ColumnChunk

pub fn new<F1, F3, F4, F5, F6, F7, F8, F9>( file_path: F1, file_offset: i64, meta_data: F3, offset_index_offset: F4, offset_index_length: F5, column_index_offset: F6, column_index_length: F7, crypto_metadata: F8, encrypted_column_metadata: F9 ) -> ColumnChunk

where F1: Into<Option<String>>, F3: Into<Option<ColumnMetaData>>, F4: Into<Option<i64>>, F5: Into<Option<i32>>, F6: Into<Option<i64>>, F7: Into<Option<i32>>, F8: Into<Option<ColumnCryptoMetaData>>, F9: Into<Option<Vec<u8>>>,

pub fn read_from_in_protocol<T: TInputProtocol>( i_prot: &mut T ) -> Result<ColumnChunk>

pub async fn stream_from_in_protocol<T: TInputStreamProtocol>( i_prot: &mut T ) -> Result<ColumnChunk>

pub fn write_to_out_protocol<T: TOutputProtocol>( &self, o_prot: &mut T ) -> Result<usize>

pub async fn write_to_out_stream_protocol<T: TOutputStreamProtocol>( &self, o_prot: &mut T ) -> Result<usize>

Trait Implementations

impl AsyncReadThrift for ColumnChunk

fn stream_from_in_protocol<'life0, 'async_trait, T>( i_prot: &'life0 mut T ) -> Pin<Box<dyn Future<Output = Result<ColumnChunk>> + Send + 'async_trait>>

where T: 'async_trait + TInputStreamProtocol, 'life0: 'async_trait,

impl Clone for ColumnChunk

fn clone(&self) -> ColumnChunk

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnChunk

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

Formats the value using the given formatter.

impl Hash for ColumnChunk

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ColumnChunk

fn cmp(&self, other: &ColumnChunk) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for ColumnChunk

fn eq(&self, other: &ColumnChunk) -> 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 PartialOrd for ColumnChunk

fn partial_cmp(&self, other: &ColumnChunk) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl ReadThrift for ColumnChunk

fn read_from_in_protocol<T: TInputProtocol>( i_prot: &mut T ) -> Result<ColumnChunk>

impl Eq for ColumnChunk

impl StructuralPartialEq for ColumnChunk