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author | Reynold Xin <rxin@databricks.com> | 2016-12-14 21:08:45 -0800 |
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committer | Reynold Xin <rxin@databricks.com> | 2016-12-14 21:08:45 -0800 |
commit | 5d510c693aca8c3fd3364b4453160bc8585ffc8e (patch) | |
tree | 50b3bdbcb4911434663e72160795e70428661621 /sql/catalyst/src/main | |
parent | d6f11a12a146a863553c5a5e2023d79d4375ef3f (diff) | |
download | spark-5d510c693aca8c3fd3364b4453160bc8585ffc8e.tar.gz spark-5d510c693aca8c3fd3364b4453160bc8585ffc8e.tar.bz2 spark-5d510c693aca8c3fd3364b4453160bc8585ffc8e.zip |
[SPARK-18869][SQL] Add TreeNode.p that returns BaseType
## What changes were proposed in this pull request?
After the bug fix in SPARK-18854, TreeNode.apply now returns TreeNode[_] rather than a more specific type. It would be easier for interactive debugging to introduce a function that returns the BaseType.
## How was this patch tested?
N/A - this is a developer only feature used for interactive debugging. As long as it compiles, it should be good to go. I tested this in spark-shell.
Author: Reynold Xin <rxin@databricks.com>
Closes #16288 from rxin/SPARK-18869.
Diffstat (limited to 'sql/catalyst/src/main')
-rw-r--r-- | sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/QueryPlan.scala | 9 | ||||
-rw-r--r-- | sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/trees/TreeNode.scala | 10 |
2 files changed, 9 insertions, 10 deletions
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/QueryPlan.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/QueryPlan.scala index e67f2be6d2..b108017c4c 100644 --- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/QueryPlan.scala +++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/QueryPlan.scala @@ -24,15 +24,6 @@ import org.apache.spark.sql.types.{DataType, StructType} abstract class QueryPlan[PlanType <: QueryPlan[PlanType]] extends TreeNode[PlanType] { self: PlanType => - /** - * Override [[TreeNode.apply]] to so we can return a more narrow type. - * - * Note that this cannot return BaseType because logical plan's plan node might return - * physical plan for innerChildren, e.g. in-memory relation logical plan node has a reference - * to the physical plan node it is referencing. - */ - override def apply(number: Int): QueryPlan[_] = super.apply(number).asInstanceOf[QueryPlan[_]] - def output: Seq[Attribute] /** diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/trees/TreeNode.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/trees/TreeNode.scala index 670fa2bc8d..8cc16d662b 100644 --- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/trees/TreeNode.scala +++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/trees/TreeNode.scala @@ -498,7 +498,7 @@ abstract class TreeNode[BaseType <: TreeNode[BaseType]] extends Product { treeString.split("\n").zipWithIndex.map { case (line, i) => f"$i%02d $line" }.mkString("\n") /** - * Returns the tree node at the specified number. + * Returns the tree node at the specified number, used primarily for interactive debugging. * Numbers for each node can be found in the [[numberedTreeString]]. * * Note that this cannot return BaseType because logical plan's plan node might return @@ -507,6 +507,14 @@ abstract class TreeNode[BaseType <: TreeNode[BaseType]] extends Product { */ def apply(number: Int): TreeNode[_] = getNodeNumbered(new MutableInt(number)).orNull + /** + * Returns the tree node at the specified number, used primarily for interactive debugging. + * Numbers for each node can be found in the [[numberedTreeString]]. + * + * This is a variant of [[apply]] that returns the node as BaseType (if the type matches). + */ + def p(number: Int): BaseType = apply(number).asInstanceOf[BaseType] + private def getNodeNumbered(number: MutableInt): Option[TreeNode[_]] = { if (number.i < 0) { None |