Struct datafusion::physical_plan::test::exec::BarrierExec
source · pub struct BarrierExec { /* private fields */ }
Expand description
A Mock ExecutionPlan that does not start producing input until a barrier is called
Implementations§
source§impl BarrierExec
impl BarrierExec
sourcepub fn new(data: Vec<Vec<RecordBatch>>, schema: Arc<Schema>) -> BarrierExec
pub fn new(data: Vec<Vec<RecordBatch>>, schema: Arc<Schema>) -> BarrierExec
Create a new exec with some number of partitions.
Trait Implementations§
source§impl Debug for BarrierExec
impl Debug for BarrierExec
source§impl DisplayAs for BarrierExec
impl DisplayAs for BarrierExec
source§impl ExecutionPlan for BarrierExec
impl ExecutionPlan for BarrierExec
source§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>
Returns a stream which yields data
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<BarrierExec>,
_: Vec<Arc<dyn ExecutionPlan>>
) -> Result<Arc<dyn ExecutionPlan>, DataFusionError>
fn with_new_children( self: Arc<BarrierExec>, _: 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 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 BarrierExec
impl !RefUnwindSafe for BarrierExec
impl Send for BarrierExec
impl Sync for BarrierExec
impl Unpin for BarrierExec
impl !UnwindSafe for BarrierExec
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