Struct datafusion::physical_plan::metrics::Timestamp

pub struct Timestamp { /* private fields */ }

Stores a single timestamp, stored as the number of nanoseconds elapsed from Jan 1, 1970 UTC

Implementations

impl Timestamp

pub fn new() -> Self

Create a new timestamp and sets its value to 0

pub fn record(&self)

Sets the timestamps value to the current time

pub fn set(&self, now: DateTime<Utc>)

Sets the timestamps value to a specified time

pub fn value(&self) -> Option<DateTime<Utc>>

return the timestamps value at the last time record() was called.

Returns None if record() has not been called

pub fn update_to_min(&self, other: &Timestamp)

sets the value of this timestamp to the minimum of this and other

pub fn update_to_max(&self, other: &Timestamp)

sets the value of this timestamp to the maximum of this and other

Trait Implementations

impl Clone for Timestamp

fn clone(&self) -> Timestamp

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Timestamp

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

Formats the value using the given formatter.

impl Default for Timestamp

fn default() -> Self

Returns the “default value” for a type.

impl Display for Timestamp

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

Formats the value using the given formatter.

impl PartialEq<Timestamp> for Timestamp

fn eq(&self, other: &Self) -> 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.