pub trait StreamPlanNode: PlanNodeCommon<Stream> + TryToStreamPb { }
Expand description
The common trait over all plan nodes. Used by optimizer framework which will treat all node as
dyn PlanNode
We split the trait into lots of sub-trait so that we can easily use macro to impl them.
Implementations§
Source§impl dyn StreamPlanNode
impl dyn StreamPlanNode
Sourcepub fn is<__T: StreamPlanNode>(&self) -> bool
pub fn is<__T: StreamPlanNode>(&self) -> bool
Returns true if the trait object wraps an object of type __T
.
Sourcepub fn downcast<__T: StreamPlanNode>(
self: Box<Self>,
) -> Result<Box<__T>, Box<Self>>
pub fn downcast<__T: StreamPlanNode>( self: Box<Self>, ) -> Result<Box<__T>, Box<Self>>
Returns a boxed object from a boxed trait object if the underlying object is of type
__T
. Returns the original boxed trait if it isn’t.
Sourcepub fn downcast_rc<__T: StreamPlanNode>(
self: Rc<Self>,
) -> Result<Rc<__T>, Rc<Self>>
pub fn downcast_rc<__T: StreamPlanNode>( self: Rc<Self>, ) -> Result<Rc<__T>, Rc<Self>>
Returns an Rc
-ed object from an Rc
-ed trait object if the underlying object is of
type __T
. Returns the original Rc
-ed trait if it isn’t.
Sourcepub fn downcast_ref<__T: StreamPlanNode>(&self) -> Option<&__T>
pub fn downcast_ref<__T: StreamPlanNode>(&self) -> Option<&__T>
Returns a reference to the object within the trait object if it is of type __T
, or
None
if it isn’t.
Sourcepub fn downcast_mut<__T: StreamPlanNode>(&mut self) -> Option<&mut __T>
pub fn downcast_mut<__T: StreamPlanNode>(&mut self) -> Option<&mut __T>
Returns a mutable reference to the object within the trait object if it is of type
__T
, or None
if it isn’t.
Source§impl dyn StreamPlanNode
Directly implement methods for PlanNode
to access the fields defined in GenericPlanRef
.
impl dyn StreamPlanNode
Directly implement methods for PlanNode
to access the fields defined in GenericPlanRef
.
pub fn id(&self) -> PlanNodeId
pub fn ctx(&self) -> OptimizerContextRef
pub fn schema(&self) -> &Schema
pub fn stream_key(&self) -> Option<&[usize]>
pub fn functional_dependency(&self) -> &FunctionalDependencySet
pub fn explain_myself_to_string(&self) -> String
Source§impl dyn StreamPlanNode
impl dyn StreamPlanNode
Sourcepub fn to_stream_prost(
&self,
state: &mut BuildFragmentGraphState,
) -> Result<PbStreamPlan, SchedulerError>
pub fn to_stream_prost( &self, state: &mut BuildFragmentGraphState, ) -> Result<PbStreamPlan, SchedulerError>
Serialize the plan node and its children to a stream plan proto.
Note that some operators has their own implementation of to_stream_prost
. We have a
hook inside to do some ad-hoc things.