Struct datafusion::physical_plan::test::exec::StatisticsExec
source · pub struct StatisticsExec { /* private fields */ }
Expand description
A mock execution plan that simply returns the provided statistics
Implementations§
source§impl StatisticsExec
impl StatisticsExec
pub fn new(stats: Statistics, schema: Schema) -> StatisticsExec
Trait Implementations§
source§impl Clone for StatisticsExec
impl Clone for StatisticsExec
source§fn clone(&self) -> StatisticsExec
fn clone(&self) -> StatisticsExec
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 Debug for StatisticsExec
impl Debug for StatisticsExec
source§impl DisplayAs for StatisticsExec
impl DisplayAs for StatisticsExec
source§impl ExecutionPlan for StatisticsExec
impl ExecutionPlan for StatisticsExec
source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Returns the execution plan as
Any
so that it can be
downcast to a specific implementation.source§fn properties(&self) -> &PlanProperties
fn properties(&self) -> &PlanProperties
Return properties of the output of the
ExecutionPlan
, such as output
ordering(s), partitioning information etc. Read moresource§fn children(&self) -> Vec<&Arc<dyn ExecutionPlan>>
fn children(&self) -> Vec<&Arc<dyn ExecutionPlan>>
Get a list of children
ExecutionPlan
s that act as inputs to this plan.
The returned list will be empty for leaf nodes such as scans, will contain
a single value for unary nodes, or two values for binary nodes (such as
joins).source§fn with_new_children(
self: Arc<StatisticsExec>,
_: Vec<Arc<dyn ExecutionPlan>>,
) -> Result<Arc<dyn ExecutionPlan>, DataFusionError>
fn with_new_children( self: Arc<StatisticsExec>, _: Vec<Arc<dyn ExecutionPlan>>, ) -> Result<Arc<dyn ExecutionPlan>, DataFusionError>
Returns a new
ExecutionPlan
where all existing children were replaced
by the children
, in ordersource§fn execute(
&self,
_partition: usize,
_context: Arc<TaskContext>,
) -> Result<Pin<Box<dyn RecordBatchStream<Item = Result<RecordBatch, DataFusionError>> + Send>>, DataFusionError>
fn execute( &self, _partition: usize, _context: Arc<TaskContext>, ) -> Result<Pin<Box<dyn RecordBatchStream<Item = Result<RecordBatch, DataFusionError>> + Send>>, DataFusionError>
source§fn statistics(&self) -> Result<Statistics, DataFusionError>
fn statistics(&self) -> Result<Statistics, DataFusionError>
Returns statistics for this
ExecutionPlan
node. If statistics are not
available, should return Statistics::new_unknown
(the default), not
an error.source§fn name(&self) -> &'static strwhere
Self: Sized,
fn name(&self) -> &'static strwhere
Self: Sized,
Short name for the ExecutionPlan, such as ‘ParquetExec’.
source§fn static_name() -> &'static strwhere
Self: Sized,
fn static_name() -> &'static strwhere
Self: Sized,
Short name for the ExecutionPlan, such as ‘ParquetExec’.
Like
name
but can be called without an instance.source§fn required_input_distribution(&self) -> Vec<Distribution>
fn required_input_distribution(&self) -> Vec<Distribution>
Specifies the data distribution requirements for all the
children for this
ExecutionPlan
, By default it’s [Distribution::UnspecifiedDistribution] for each child,source§fn required_input_ordering(&self) -> Vec<Option<Vec<PhysicalSortRequirement>>>
fn required_input_ordering(&self) -> Vec<Option<Vec<PhysicalSortRequirement>>>
Specifies the ordering required for all of the children of this
ExecutionPlan
. Read moresource§fn maintains_input_order(&self) -> Vec<bool>
fn maintains_input_order(&self) -> Vec<bool>
Returns
false
if this ExecutionPlan
’s implementation may reorder
rows within or between partitions. Read moresource§fn benefits_from_input_partitioning(&self) -> Vec<bool>
fn benefits_from_input_partitioning(&self) -> Vec<bool>
Specifies whether the
ExecutionPlan
benefits from increased
parallelization at its input for each child. Read moresource§fn repartitioned(
&self,
_target_partitions: usize,
_config: &ConfigOptions,
) -> Result<Option<Arc<dyn ExecutionPlan>>, DataFusionError>
fn repartitioned( &self, _target_partitions: usize, _config: &ConfigOptions, ) -> Result<Option<Arc<dyn ExecutionPlan>>, DataFusionError>
If supported, attempt to increase the partitioning of this
ExecutionPlan
to
produce target_partitions
partitions. Read moresource§fn metrics(&self) -> Option<MetricsSet>
fn metrics(&self) -> Option<MetricsSet>
Return a snapshot of the set of
Metric
s for this
ExecutionPlan
. If no Metric
s are available, return None. Read moreAuto Trait Implementations§
impl Freeze for StatisticsExec
impl !RefUnwindSafe for StatisticsExec
impl Send for StatisticsExec
impl Sync for StatisticsExec
impl Unpin for StatisticsExec
impl !UnwindSafe for StatisticsExec
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> 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 more