Enum parquet::basic::ColumnOrder

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pub enum ColumnOrder {
    TYPE_DEFINED_ORDER(SortOrder),
    UNDEFINED,
}

[−] Expand description

Column order that specifies what method was used to aggregate min/max values for statistics.

If column order is undefined, then it is the legacy behaviour and all values should be compared as signed values/bytes.

Variants

TYPE_DEFINED_ORDER(SortOrder)

[−] Expand description

Column uses the order defined by its logical or physical type (if there is no logical type), parquet-format 2.4.0+.

UNDEFINED

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Undefined column order, means legacy behaviour before parquet-format 2.4.0. Sort order is always SIGNED.

Methods

impl ColumnOrder

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pub fn get_sort_order(     logical_type: LogicalType,     physical_type: Type ) -> SortOrder

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Returns sort order for a physical/logical type.

pub fn sort_order(&self) -> SortOrder

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Returns sort order associated with this column order.

Trait Implementations

impl PartialEq<ColumnOrder> for ColumnOrder

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

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

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

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This method tests for !=.

impl Clone for ColumnOrder

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fn clone(&self) -> ColumnOrder

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Returns a copy of the value.

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

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Performs copy-assignment from source.

impl Copy for ColumnOrder

impl Debug for ColumnOrder

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

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Formats the value using the given formatter.

impl Display for ColumnOrder

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

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Formats the value using the given formatter.