spark git commit: [SQL] Mark strategies with override for clarity.

[li...@apache.org]

Repository: spark
Updated Branches:
  refs/heads/master b034f2565 -> b84f61cd7


[SQL] Mark strategies with override for clarity.

## What changes were proposed in this pull request?

This is a very trivial PR, simply marking `strategies` in `SparkPlanner` with the `override` keyword for clarity since it is overriding `strategies` in `QueryPlanner` two levels up in the class hierarchy. I was reading through the code to learn a bit and got stuck on this fact for a little while, so I figured this may be helpful so that another developer new to the project doesn't get stuck where I was.

I did not make a JIRA ticket for this because it is so trivial, but I'm happy to do so to adhere to the contribution guidelines if required.

## How was this patch tested?

(Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests)
(If this patch involves UI changes, please attach a screenshot; otherwise, remove this)

Please review http://spark.apache.org/contributing.html before opening a pull request.

Author: Eric Perry <er...@ericjperry.com>

Closes #19537 from ericjperry/override-strategies.


Project: http://git-wip-us.apache.org/repos/asf/spark/repo
Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/b84f61cd
Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/b84f61cd
Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/b84f61cd

Branch: refs/heads/master
Commit: b84f61cd79a365edd4cc893a1de416c628d9906b
Parents: b034f25
Author: Eric Perry <er...@ericjperry.com>
Authored: Thu Oct 19 23:57:41 2017 -0700
Committer: gatorsmile <ga...@gmail.com>
Committed: Thu Oct 19 23:57:41 2017 -0700

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 .../main/scala/org/apache/spark/sql/execution/SparkPlanner.scala   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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http://git-wip-us.apache.org/repos/asf/spark/blob/b84f61cd/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlanner.scala
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diff --git a/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlanner.scala b/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlanner.scala
index b143d44..7404887 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlanner.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlanner.scala
@@ -33,7 +33,7 @@ class SparkPlanner(
 
   def numPartitions: Int = conf.numShufflePartitions
 
-  def strategies: Seq[Strategy] =
+  override def strategies: Seq[Strategy] =
     experimentalMethods.extraStrategies ++
       extraPlanningStrategies ++ (
       DataSourceV2Strategy ::


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