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ColumnStatistics

parquet_lite::statistics

Struct ColumnStatistics

pub struct ColumnStatistics {
    pub column_name: String,
    pub physical_type: ParquetType,
    pub num_values: i64,
    pub null_count: i64,
    pub distinct_values: Option<i64>,
    pub min_value: Option<String>,
    pub max_value: Option<String>,
    pub size_bytes: i64,
    pub compression_ratio: f64,
}

Expand description

Per-column statistics summary

Fields§

§column_name: String§physical_type: ParquetType§num_values: i64§null_count: i64§distinct_values: Option<i64>§min_value: Option<String>§max_value: Option<String>§size_bytes: i64§compression_ratio: f64

Trait Implementations§

impl Clone for ColumnStatistics

fn clone(&self) -> ColumnStatistics

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

impl Debug for ColumnStatistics

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl Freeze for ColumnStatistics

impl RefUnwindSafe for ColumnStatistics

impl Send for ColumnStatistics

impl Sync for ColumnStatistics

impl Unpin for ColumnStatistics

impl UnsafeUnpin for ColumnStatistics

impl UnwindSafe for ColumnStatistics

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,