Struct parquet_format::SortingColumn

pub struct SortingColumn {
    pub column_idx: i32,
    pub descending: bool,
    pub nulls_first: bool,
}

Wrapper struct to specify sort order

Fields

column_idx: i32

The column index (in this row group) *

descending: bool

If true, indicates this column is sorted in descending order. *

nulls_first: bool

If true, nulls will come before non-null values, otherwise, nulls go at the end.

Implementations

impl SortingColumn

pub fn new(
    column_idx: i32,
    descending: bool,
    nulls_first: bool
) -> SortingColumn

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

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

Trait Implementations

impl Clone for SortingColumn

pub fn clone(&self) -> SortingColumn

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SortingColumn

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

Formats the value using the given formatter.

impl Eq for SortingColumn

impl Hash for SortingColumn

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

Feeds this value into the given Hasher.

pub 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 SortingColumn

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl PartialEq<SortingColumn> for SortingColumn

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

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

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

This method tests for !=.

impl PartialOrd<SortingColumn> for SortingColumn

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

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

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

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

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

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

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

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

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

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

impl StructuralEq for SortingColumn

impl StructuralPartialEq for SortingColumn