Struct parquet2::metadata::ColumnDescriptor

pub struct ColumnDescriptor { /* private fields */ }

A descriptor for leaf-level primitive columns. This encapsulates information such as definition and repetition levels and is used to re-assemble nested data.

Implementations

impl ColumnDescriptor

pub fn new(
    primitive_type: ParquetType,
    max_def_level: i16,
    max_rep_level: i16,
    path_in_schema: Vec<String>,
    base_type: ParquetType
) -> Self

Creates new descriptor for leaf-level column.

pub fn max_def_level(&self) -> i16

Returns maximum definition level for this column.

pub fn max_rep_level(&self) -> i16

Returns maximum repetition level for this column.

pub fn path_in_schema(&self) -> &[String]

pub fn base_type(&self) -> &ParquetType

pub fn type_(&self) -> &ParquetType

Returns self type ParquetType for this leaf column.

pub fn physical_type(&self) -> &PhysicalType

Returns self type PhysicalType for this leaf column.

Panic

This function panics if the corresponding ParquetType is not a primitive type

pub fn name(&self) -> &str

Returns column name.

Trait Implementations

impl Clone for ColumnDescriptor

fn clone(&self) -> ColumnDescriptor

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnDescriptor

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

Formats the value using the given formatter.

impl PartialEq<ColumnDescriptor> for ColumnDescriptor

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

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

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

This method tests for !=.

impl StructuralPartialEq for ColumnDescriptor