Struct datafusion::physical_plan::explain::ExplainExec
source · [−]pub struct ExplainExec { /* private fields */ }
Expand description
Explain execution plan operator. This operator contains the string values of the various plans it has when it is created, and passes them to its output.
Implementations
sourceimpl ExplainExec
impl ExplainExec
sourcepub fn new(
schema: SchemaRef,
stringified_plans: Vec<StringifiedPlan>,
verbose: bool
) -> Self
pub fn new(
schema: SchemaRef,
stringified_plans: Vec<StringifiedPlan>,
verbose: bool
) -> Self
Create a new ExplainExec
sourcepub fn stringified_plans(&self) -> &[StringifiedPlan]
pub fn stringified_plans(&self) -> &[StringifiedPlan]
The strings to be printed
Trait Implementations
sourceimpl Clone for ExplainExec
impl Clone for ExplainExec
sourcefn clone(&self) -> ExplainExec
fn clone(&self) -> ExplainExec
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresourceimpl Debug for ExplainExec
impl Debug for ExplainExec
sourceimpl ExecutionPlan for ExplainExec
impl ExecutionPlan for ExplainExec
sourcefn output_partitioning(&self) -> Partitioning
fn output_partitioning(&self) -> Partitioning
Get the output partitioning of this plan
sourcefn children(&self) -> Vec<Arc<dyn ExecutionPlan>>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A>where
A: Allocator,
fn children(&self) -> Vec<Arc<dyn ExecutionPlan>>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A>where
A: Allocator,
A: Allocator,
Get a list of child execution plans that provide the input for this plan. The returned list
will be empty for leaf nodes, will contain a single value for unary nodes, or two
values for binary nodes (such as joins). Read more
sourcefn output_ordering(&self) -> Option<&[PhysicalSortExpr]>
fn output_ordering(&self) -> Option<&[PhysicalSortExpr]>
If the output of this operator is sorted, returns
Some(keys)
with the description of how it was sorted. Read moresourcefn relies_on_input_order(&self) -> bool
fn relies_on_input_order(&self) -> bool
Returns
true
if this operator relies on its inputs being
produced in a certain order (for example that they are sorted
a particular way) for correctness. Read moresourcefn with_new_children(
self: Arc<Self>,
_: Vec<Arc<dyn ExecutionPlan>>
) -> Result<Arc<dyn ExecutionPlan>>
fn with_new_children(
self: Arc<Self>,
_: Vec<Arc<dyn ExecutionPlan>>
) -> Result<Arc<dyn ExecutionPlan>>
Returns a new plan where all children were replaced by new plans.
sourcefn execute(
&self,
partition: usize,
context: Arc<TaskContext>
) -> Result<SendableRecordBatchStream>
fn execute(
&self,
partition: usize,
context: Arc<TaskContext>
) -> Result<SendableRecordBatchStream>
creates an iterator
sourcefn fmt_as(&self, t: DisplayFormatType, f: &mut Formatter<'_>) -> Result
fn fmt_as(&self, t: DisplayFormatType, f: &mut Formatter<'_>) -> Result
sourcefn statistics(&self) -> Statistics
fn statistics(&self) -> Statistics
Returns the global output statistics for this
ExecutionPlan
node.sourcefn required_child_distribution(&self) -> Distribution
fn required_child_distribution(&self) -> Distribution
Specifies the data distribution requirements of all the
children for this operator Read more
sourcefn maintains_input_order(&self) -> bool
fn maintains_input_order(&self) -> bool
Returns
false
if this operator’s implementation may reorder
rows within or between partitions. Read moresourcefn benefits_from_input_partitioning(&self) -> bool
fn benefits_from_input_partitioning(&self) -> bool
Returns
true
if this operator would benefit from
partitioning its input (and thus from more parallelism). For
operators that do very little work the overhead of extra
parallelism may outweigh any benefits Read moresourcefn metrics(&self) -> Option<MetricsSet>
fn metrics(&self) -> Option<MetricsSet>
Auto Trait Implementations
impl RefUnwindSafe for ExplainExec
impl Send for ExplainExec
impl Sync for ExplainExec
impl Unpin for ExplainExec
impl UnwindSafe for ExplainExec
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more