Struct arrow2::io::parquet::read::indexes::ColumnPageStatistics

pub struct ColumnPageStatistics {
    pub min: Box<dyn Array>,
    pub max: Box<dyn Array>,
    pub null_count: UInt64Array,
}

Available on crate feature io_parquet only.

ColumnPageStatistics contains the minimum, maximum, and null_count of each page of a parquet column, as an Array. This struct has the following invariants:

• min, max and null_count have the same length (equal to the number of pages in the column)
• min, max and null_count are guaranteed to be non-null
• min and max have the same logical type

Fields

min: Box<dyn Array>

The minimum values in the pages

max: Box<dyn Array>

The maximum values in the pages

null_count: UInt64Array

The number of null values in the pages.

Trait Implementations

impl Debug for ColumnPageStatistics

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

Formats the value using the given formatter.

impl From<ColumnPageStatistics> for FieldPageStatistics

fn from(column: ColumnPageStatistics) -> Self

Converts to this type from the input type.

impl PartialEq<ColumnPageStatistics> for ColumnPageStatistics

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

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

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

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

impl StructuralPartialEq for ColumnPageStatistics