trait AdaptiveSparkPlanHelper extends AnyRef
This class provides utility methods related to tree traversal of an AdaptiveSparkPlanExec plan. Unlike their counterparts in org.apache.spark.sql.catalyst.trees.TreeNode or org.apache.spark.sql.catalyst.plans.QueryPlan, these methods traverse down leaf nodes of adaptive plans, i.e., AdaptiveSparkPlanExec and QueryStageExec.
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- def allChildren(p: SparkPlan): Seq[SparkPlan]
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- def collect[B](p: SparkPlan)(pf: PartialFunction[SparkPlan, B]): Seq[B]
Returns a Seq containing the result of applying a partial function to all elements in this tree on which the function is defined.
- def collectFirst[B](p: SparkPlan)(pf: PartialFunction[SparkPlan, B]): Option[B]
Finds and returns the first SparkPlan of the tree for which the given partial function is defined (pre-order), and applies the partial function to it.
- def collectLeaves(p: SparkPlan): Seq[SparkPlan]
Returns a Seq containing the leaves in this tree.
- def collectWithSubqueries[B](p: SparkPlan)(f: PartialFunction[SparkPlan, B]): Seq[B]
Returns a sequence containing the result of applying a partial function to all elements in this plan, also considering all the plans in its (nested) subqueries
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- def find(p: SparkPlan)(f: (SparkPlan) => Boolean): Option[SparkPlan]
Find the first SparkPlan that satisfies the condition specified by
f.Find the first SparkPlan that satisfies the condition specified by
f. The condition is recursively applied to this node and all of its children (pre-order). - def flatMap[A](p: SparkPlan)(f: (SparkPlan) => TraversableOnce[A]): Seq[A]
Returns a Seq by applying a function to all nodes in this tree and using the elements of the resulting collections.
- def foreach(p: SparkPlan)(f: (SparkPlan) => Unit): Unit
Runs the given function on this node and then recursively on children.
Runs the given function on this node and then recursively on children.
- f
the function to be applied to each node in the tree.
- def foreachUp(p: SparkPlan)(f: (SparkPlan) => Unit): Unit
Runs the given function recursively on children then on this node.
Runs the given function recursively on children then on this node.
- f
the function to be applied to each node in the tree.
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- def mapPlans[A](p: SparkPlan)(f: (SparkPlan) => A): Seq[A]
Returns a Seq containing the result of applying the given function to each node in this tree in a preorder traversal.
Returns a Seq containing the result of applying the given function to each node in this tree in a preorder traversal.
- f
the function to be applied.
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- def stripAQEPlan(p: SparkPlan): SparkPlan
Strip the executePlan of AdaptiveSparkPlanExec leaf node.
- def subqueriesAll(p: SparkPlan): Seq[SparkPlan]
Returns a sequence containing the subqueries in this plan, also including the (nested) subqueries in its children
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