pub struct ReadOptions {
pub prefix_hint: Option<Bytes>,
pub prefetch_options: PrefetchOptions,
pub cache_policy: CachePolicy,
pub retention_seconds: Option<u32>,
pub table_id: TableId,
pub read_version_from_backup: bool,
pub read_committed: bool,
}
Fields§
§prefix_hint: Option<Bytes>
A hint for prefix key to check bloom filter.
If the prefix_hint
is not None, it should be included in
key
or key_range
in the read API.
prefetch_options: PrefetchOptions
§cache_policy: CachePolicy
§retention_seconds: Option<u32>
§table_id: TableId
§read_version_from_backup: bool
Read from historical hummock version of meta snapshot backup.
It should only be used by StorageTable
for batch query.
read_committed: bool
Trait Implementations§
source§impl Clone for ReadOptions
impl Clone for ReadOptions
source§fn clone(&self) -> ReadOptions
fn clone(&self) -> ReadOptions
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Default for ReadOptions
impl Default for ReadOptions
source§fn default() -> ReadOptions
fn default() -> ReadOptions
Returns the “default value” for a type. Read more
source§impl From<ReadOptions> for TracedReadOptions
impl From<ReadOptions> for TracedReadOptions
source§fn from(value: ReadOptions) -> Self
fn from(value: ReadOptions) -> Self
Converts to this type from the input type.
source§impl From<TracedReadOptions> for ReadOptions
impl From<TracedReadOptions> for ReadOptions
source§fn from(value: TracedReadOptions) -> Self
fn from(value: TracedReadOptions) -> Self
Converts to this type from the input type.
Auto Trait Implementations§
impl !Freeze for ReadOptions
impl RefUnwindSafe for ReadOptions
impl Send for ReadOptions
impl Sync for ReadOptions
impl Unpin for ReadOptions
impl UnwindSafe for ReadOptions
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> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
.§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.§impl<T> DowncastSync for T
impl<T> DowncastSync for T
§impl<T> FutureExt for T
impl<T> FutureExt for T
§fn with_context(self, otel_cx: Context) -> WithContext<Self>
fn with_context(self, otel_cx: Context) -> WithContext<Self>
§fn with_current_context(self) -> WithContext<Self>
fn with_current_context(self) -> WithContext<Self>
§impl<T> Instrument for T
impl<T> Instrument for T
§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<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> 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
§impl<T> IntoResult<T> for T
impl<T> IntoResult<T> for T
type Err = Infallible
fn into_result(self) -> Result<T, <T as IntoResult<T>>::Err>
Creates a shared type from an unshared type.
source§impl<M> MetricVecRelabelExt for M
impl<M> MetricVecRelabelExt for M
source§fn relabel(
self,
metric_level: MetricLevel,
relabel_threshold: MetricLevel,
) -> RelabeledMetricVec<M>
fn relabel( self, metric_level: MetricLevel, relabel_threshold: MetricLevel, ) -> RelabeledMetricVec<M>
Equivalent to
RelabeledMetricVec::with_metric_level
.source§fn relabel_n(
self,
metric_level: MetricLevel,
relabel_threshold: MetricLevel,
relabel_num: usize,
) -> RelabeledMetricVec<M>
fn relabel_n( self, metric_level: MetricLevel, relabel_threshold: MetricLevel, relabel_num: usize, ) -> RelabeledMetricVec<M>
Equivalent to
RelabeledMetricVec::with_metric_level_relabel_n
.source§fn relabel_debug_1(
self,
relabel_threshold: MetricLevel,
) -> RelabeledMetricVec<M>
fn relabel_debug_1( self, relabel_threshold: MetricLevel, ) -> RelabeledMetricVec<M>
Equivalent to
RelabeledMetricVec::with_metric_level_relabel_n
with metric_level
set to
MetricLevel::Debug
and relabel_num
set to 1.