Enum ColumnIndexMetaData

pub enum ColumnIndexMetaData {
    NONE,
    BOOLEAN(PrimitiveColumnIndex<bool>),
    INT32(PrimitiveColumnIndex<i32>),
    INT64(PrimitiveColumnIndex<i64>),
    INT96(PrimitiveColumnIndex<Int96>),
    FLOAT(PrimitiveColumnIndex<f32>),
    DOUBLE(PrimitiveColumnIndex<f64>),
    BYTE_ARRAY(ByteArrayColumnIndex),
    FIXED_LEN_BYTE_ARRAY(ByteArrayColumnIndex),
}

Parsed ColumnIndex information for a Parquet file.

See ParquetColumnIndex for more information.

Variants

NONE

Sometimes reading page index from parquet file will only return pageLocations without min_max index, NONE represents this lack of index information

BOOLEAN(PrimitiveColumnIndex<bool>)

Boolean type index

INT32(PrimitiveColumnIndex<i32>)

32-bit integer type index

INT64(PrimitiveColumnIndex<i64>)

64-bit integer type index

INT96(PrimitiveColumnIndex<Int96>)

96-bit integer type (timestamp) index

FLOAT(PrimitiveColumnIndex<f32>)

32-bit floating point type index

DOUBLE(PrimitiveColumnIndex<f64>)

64-bit floating point type index

BYTE_ARRAY(ByteArrayColumnIndex)

Byte array type index

FIXED_LEN_BYTE_ARRAY(ByteArrayColumnIndex)

Fixed length byte array type index

Implementations

impl ColumnIndexMetaData

pub fn is_sorted(&self) -> bool

Return min/max elements inside ColumnIndex are ordered or not.

pub fn get_boundary_order(&self) -> Option<BoundaryOrder>

Get boundary_order of this page index.

pub fn null_counts(&self) -> Option<&Vec<i64>>

Returns array of null counts, one per page.

Returns None if now null counts have been set in the index

pub fn num_pages(&self) -> u64

Returns the number of pages

pub fn null_count(&self, idx: usize) -> Option<i64>

Returns the number of null values in the page indexed by idx

Returns None if no null counts have been set in the index

pub fn repetition_level_histogram(&self, idx: usize) -> Option<&[i64]>

Returns the repetition level histogram for the page indexed by idx

pub fn definition_level_histogram(&self, idx: usize) -> Option<&[i64]>

Returns the definition level histogram for the page indexed by idx

pub fn is_null_page(&self, idx: usize) -> bool

Returns whether the page indexed by idx consists of all null values

Trait Implementations

impl Clone for ColumnIndexMetaData

fn clone(&self) -> ColumnIndexMetaData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnIndexMetaData

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

Formats the value using the given formatter.

impl PartialEq for ColumnIndexMetaData

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ColumnIndexMetaData