Trait polars_core::datatypes::LogicalType

pub trait LogicalType {
    fn dtype(&self) -> &DataType;
    fn cast(&self, dtype: &DataType) -> PolarsResult<Series>;

    fn get_any_value(&self, _i: usize) -> PolarsResult<AnyValue<'_>> { ... }
    unsafe fn get_any_value_unchecked(&self, _i: usize) -> AnyValue<'_> { ... }
}

Required Methods

fn dtype(&self) -> &DataType

Get data type of ChunkedArray.

fn cast(&self, dtype: &DataType) -> PolarsResult<Series>

Provided Methods

fn get_any_value(&self, _i: usize) -> PolarsResult<AnyValue<'_>>

Gets AnyValue from LogicalType

unsafe fn get_any_value_unchecked(&self, _i: usize) -> AnyValue<'_>

Safety

Does not do any bound checks.

Implementors

impl LogicalType for CategoricalChunked

Available on crate feature dtype-categorical only.

impl LogicalType for StructChunked

Available on crate feature dtype-struct only.

impl LogicalType for DateChunked

Available on crate feature dtype-date only.

impl LogicalType for DatetimeChunked

Available on crate feature dtype-datetime only.

impl LogicalType for DurationChunked

Available on crate feature dtype-duration only.

impl LogicalType for TimeChunked

Available on crate feature dtype-time only.