Struct datafusion_proto::generated::datafusion::ColumnStats

pub struct ColumnStats {
    pub min_value: Option<Precision>,
    pub max_value: Option<Precision>,
    pub null_count: Option<Precision>,
    pub distinct_count: Option<Precision>,
}

Fields

min_value: Option<Precision>

max_value: Option<Precision>

null_count: Option<Precision>

distinct_count: Option<Precision>

Trait Implementations

impl Clone for ColumnStats

fn clone(&self) -> ColumnStats

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnStats

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

Formats the value using the given formatter.

impl Default for ColumnStats

fn default() -> Self

Returns the “default value” for a type.

impl From<&ColumnStatistics> for ColumnStats

fn from(s: &ColumnStatistics) -> ColumnStats

Converts to this type from the input type.

impl From<&ColumnStats> for ColumnStatistics

fn from(cs: &ColumnStats) -> ColumnStatistics

Converts to this type from the input type.

impl Message for ColumnStats

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 ColumnStats

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