Struct ColumnStatistics

pub struct ColumnStatistics {
    pub number_of_values: Option<u64>,
    pub int_statistics: Option<IntegerStatistics>,
    pub double_statistics: Option<DoubleStatistics>,
    pub string_statistics: Option<StringStatistics>,
    pub bucket_statistics: Option<BucketStatistics>,
    pub decimal_statistics: Option<DecimalStatistics>,
    pub date_statistics: Option<DateStatistics>,
    pub binary_statistics: Option<BinaryStatistics>,
    pub timestamp_statistics: Option<TimestampStatistics>,
    pub has_null: Option<bool>,
}

Fields

number_of_values: Option<u64>

int_statistics: Option<IntegerStatistics>

double_statistics: Option<DoubleStatistics>

string_statistics: Option<StringStatistics>

bucket_statistics: Option<BucketStatistics>

decimal_statistics: Option<DecimalStatistics>

date_statistics: Option<DateStatistics>

binary_statistics: Option<BinaryStatistics>

timestamp_statistics: Option<TimestampStatistics>

has_null: Option<bool>

Implementations

impl ColumnStatistics

pub fn number_of_values(&self) -> u64

Returns the value of number_of_values, or the default value if number_of_values is unset.

pub fn has_null(&self) -> bool

Returns the value of has_null, or the default value if has_null is unset.

Trait Implementations

impl Clone for ColumnStatistics

fn clone(&self) -> ColumnStatistics

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnStatistics

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

Formats the value using the given formatter.

impl Default for ColumnStatistics

fn default() -> Self

Returns the “default value” for a type.

impl Message for ColumnStatistics

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode<B>(&self, buf: &mut B) -> Result<(), EncodeError>

where B: BufMut, Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited<B>(&self, buf: &mut B) -> Result<(), EncodeError>

where B: BufMut, Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge<B>(&mut self, buf: B) -> Result<(), DecodeError>

where B: Buf, Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited<B>(&mut self, buf: B) -> Result<(), DecodeError>

where B: Buf, Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for ColumnStatistics

fn eq(&self, other: &ColumnStatistics) -> 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 ColumnStatistics