Struct parquet_format::RowGroup

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

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.

Implementations

impl RowGroup

pub fn new<F4>(
    columns: Vec<ColumnChunk>,
    total_byte_size: i64,
    num_rows: i64,
    sorting_columns: F4
) -> RowGroup where
    F4: Into<Option<Vec<SortingColumn>>>, 

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

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

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 Eq for RowGroup

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, 

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.

#[must_use]fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl PartialEq<RowGroup> for RowGroup

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl PartialOrd<RowGroup> 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: &RowGroup) -> bool

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

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

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

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

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

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

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

impl StructuralEq for RowGroup

impl StructuralPartialEq for RowGroup