Struct PageStatistics 

pub(crate) struct PageStatistics {
    pub(crate) max: Option<Vec<u8>>,
    pub(crate) min: Option<Vec<u8>>,
    pub(crate) null_count: Option<i64>,
    pub(crate) distinct_count: Option<i64>,
    pub(crate) max_value: Option<Vec<u8>>,
    pub(crate) min_value: Option<Vec<u8>>,
    pub(crate) is_max_value_exact: Option<bool>,
    pub(crate) is_min_value_exact: Option<bool>,
}

Statistics for the page header.

This is a duplicate of the Statistics struct above. Because the page reader uses the Read API, we cannot read the min/max values as slices. This should not be a huge problem since this crate no longer reads the page header statistics by default.

Fields

max: Option<Vec<u8>>

min: Option<Vec<u8>>

null_count: Option<i64>

distinct_count: Option<i64>

max_value: Option<Vec<u8>>

min_value: Option<Vec<u8>>

is_max_value_exact: Option<bool>

is_min_value_exact: Option<bool>

Trait Implementations

impl Clone for PageStatistics

fn clone(&self) -> PageStatistics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PageStatistics

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

Formats the value using the given formatter.

impl PartialEq for PageStatistics

fn eq(&self, other: &PageStatistics) -> 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<'a, R: ThriftCompactInputProtocol<'a>> ReadThrift<'a, R> for PageStatistics

fn read_thrift(prot: &mut R) -> Result<Self>

Read an object of type Self from the input protocol object.

impl WriteThrift for PageStatistics

const ELEMENT_TYPE: ElementType = ElementType::Struct

The ElementType to use when a list of this object is written.

fn write_thrift<W: Write>( &self, writer: &mut ThriftCompactOutputProtocol<W>, ) -> Result<()>

Serialize this object to the given writer.

impl WriteThriftField for PageStatistics

fn write_thrift_field<W: Write>( &self, writer: &mut ThriftCompactOutputProtocol<W>, field_id: i16, last_field_id: i16, ) -> Result<i16>

Used to write struct fields (which may be primitive or IDL defined types). This will write the field marker for the given field_id, using last_field_id to compute the field delta used by the Thrift compact protocol. On success this will return field_id to be used in chaining.

impl Eq for PageStatistics

impl StructuralPartialEq for PageStatistics