pub struct StatsCollector { /* private fields */ }Expand description
Statistics collector for building table stats
Implementations§
Source§impl StatsCollector
impl StatsCollector
Sourcepub fn new() -> StatsCollector
pub fn new() -> StatsCollector
Create new collector
Sourcepub fn add_column(&mut self, name: &str)
pub fn add_column(&mut self, name: &str)
Start collecting for a column
Sourcepub fn observe_row(&mut self, row_size: usize)
pub fn observe_row(&mut self, row_size: usize)
Observe a row
Sourcepub fn observe_value(&mut self, column: &str, value: Option<&ObservedValue>)
pub fn observe_value(&mut self, column: &str, value: Option<&ObservedValue>)
Observe a value
Sourcepub fn build(self, table_name: String) -> TableStats
pub fn build(self, table_name: String) -> TableStats
Build final statistics
Trait Implementations§
Source§impl Default for StatsCollector
impl Default for StatsCollector
Source§fn default() -> StatsCollector
fn default() -> StatsCollector
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl Freeze for StatsCollector
impl RefUnwindSafe for StatsCollector
impl Send for StatsCollector
impl Sync for StatsCollector
impl Unpin for StatsCollector
impl UnsafeUnpin for StatsCollector
impl UnwindSafe for StatsCollector
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§impl<T> IntoRequest<T> for T
impl<T> IntoRequest<T> for T
Source§fn into_request(self) -> Request<T>
fn into_request(self) -> Request<T>
Wrap the input message
T in a tonic::Request