Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/19281#discussion_r139875333
--- Diff: sql/core/src/test/scala/org/apache/spark/sql/JoinSuite.scala ---
@@ -64,6 +67,42 @@ class JoinSuite extends QueryTest with SharedSQLContext {
}
}
+ def assertJoinOrdering(sqlString: String, numOfJoin: Int, numOfSort:
Int): Any = {
--- End diff --
Please add function comments to explain what it does
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