Struct RowGroup

pub struct RowGroup {
    pub columns: Vec<ColumnChunk>,
    pub total_byte_size: i64,
    pub num_rows: i64,
    pub sorting_columns: Option<Vec<SortingColumn>>,
    pub file_offset: Option<i64>,
    pub total_compressed_size: Option<i64>,
    pub ordinal: Option<i16>,
}

Fields

columns: Vec<ColumnChunk>

Metadata for each column chunk in this row group. This list must have the same order as the SchemaElement list in FileMetaData.

total_byte_size: i64

Total byte size of all the uncompressed column data in this row group *

num_rows: i64

Number of rows in this row group *

sorting_columns: Option<Vec<SortingColumn>>

If set, specifies a sort ordering of the rows in this RowGroup. The sorting columns can be a subset of all the columns.

file_offset: Option<i64>

Byte offset from beginning of file to first page (data or dictionary) in this row group *

total_compressed_size: Option<i64>

Total byte size of all compressed (and potentially encrypted) column data in this row group *

ordinal: Option<i16>

Row group ordinal in the file *

Implementations

impl RowGroup

pub fn new<F4, F5, F6, F7>( columns: Vec<ColumnChunk>, total_byte_size: i64, num_rows: i64, sorting_columns: F4, file_offset: F5, total_compressed_size: F6, ordinal: F7, ) -> RowGroup

where F4: Into<Option<Vec<SortingColumn>>>, F5: Into<Option<i64>>, F6: Into<Option<i64>>, F7: Into<Option<i16>>,

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

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

Trait Implementations

impl Clone for RowGroup

fn clone(&self) -> RowGroup

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RowGroup

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

Formats the value using the given formatter.

impl Hash for RowGroup

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 RowGroup

fn cmp(&self, other: &RowGroup) -> 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,

Restrict a value to a certain interval.

impl PartialEq for RowGroup

fn eq(&self, other: &RowGroup) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for RowGroup

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl ReadThrift for RowGroup

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

impl Eq for RowGroup

impl StructuralPartialEq for RowGroup