Struct mz_persist_types::stats::NoneStats
source · pub struct NoneStats;
Expand description
Empty set of statistics.
Trait Implementations§
source§impl<T: Data> ColumnStats<T> for NoneStats
impl<T: Data> ColumnStats<T> for NoneStats
source§fn lower<'a>(&'a self) -> Option<<T as Data>::Ref<'a>>
fn lower<'a>(&'a self) -> Option<<T as Data>::Ref<'a>>
An inclusive lower bound on the data contained in the column, if known. Read more
source§fn upper<'a>(&'a self) -> Option<<T as Data>::Ref<'a>>
fn upper<'a>(&'a self) -> Option<<T as Data>::Ref<'a>>
Same as Self::lower but an (also inclusive) upper bound.
source§fn none_count(&self) -> usize
fn none_count(&self) -> usize
The number of
None
s if this column is optional or 0 if it isn’t.source§impl DynStats for NoneStats
impl DynStats for NoneStats
source§fn into_proto(&self) -> ProtoDynStats
fn into_proto(&self) -> ProtoDynStats
source§fn debug_json(&self) -> Value
fn debug_json(&self) -> Value
Formats these statistics for use in
INSPECT SHARD
and debugging.source§impl RustType<()> for NoneStats
impl RustType<()> for NoneStats
source§fn into_proto(&self)
fn into_proto(&self)
Convert a
Self
into a Proto
value.source§fn from_proto(_proto: ()) -> Result<Self, TryFromProtoError>
fn from_proto(_proto: ()) -> Result<Self, TryFromProtoError>
Auto Trait Implementations§
impl Freeze for NoneStats
impl RefUnwindSafe for NoneStats
impl Send for NoneStats
impl Sync for NoneStats
impl Unpin for NoneStats
impl UnwindSafe for NoneStats
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<R, O, T> CopyOnto<ConsecutiveOffsetPairs<R, O>> for T
impl<R, O, T> CopyOnto<ConsecutiveOffsetPairs<R, O>> for T
source§fn copy_onto(
self,
target: &mut ConsecutiveOffsetPairs<R, O>
) -> <ConsecutiveOffsetPairs<R, O> as Region>::Index
fn copy_onto( self, target: &mut ConsecutiveOffsetPairs<R, O> ) -> <ConsecutiveOffsetPairs<R, O> as Region>::Index
Copy self into the target container, returning an index that allows to
look up the corresponding read item.
source§impl<T> FutureExt for T
impl<T> FutureExt for T
source§fn with_context(self, otel_cx: Context) -> WithContext<Self>
fn with_context(self, otel_cx: Context) -> WithContext<Self>
source§fn with_current_context(self) -> WithContext<Self>
fn with_current_context(self) -> WithContext<Self>
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> 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
source§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<P, R> ProtoType<R> for Pwhere
R: RustType<P>,
impl<P, R> ProtoType<R> for Pwhere
R: RustType<P>,
source§fn into_rust(self) -> Result<R, TryFromProtoError>
fn into_rust(self) -> Result<R, TryFromProtoError>
See
RustType::from_proto
.source§fn from_rust(rust: &R) -> P
fn from_rust(rust: &R) -> P
See
RustType::into_proto
.