Github user yjshen commented on a diff in the pull request:
https://github.com/apache/spark/pull/7986#discussion_r36584198
--- Diff:
sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/HiveExplainSuite.scala
---
@@ -74,4 +79,30 @@ class HiveExplainSuite extends QueryTest {
"Limit",
"src")
}
+
+ test("SPARK-6212: The EXPLAIN output of CTAS only shows the analyzed
plan") {
+ withTempTable("jt") {
+ val rdd = sparkContext.parallelize((1 to 10).map(i => s"""{"a":$i,
"b":"str$i"}"""))
+ read.json(rdd).registerTempTable("jt")
+ val outputs = sql(
+ s"""
+ |EXPLAIN EXTENDED
+ |CREATE TABLE t1
+ |AS
+ |SELECT * FROM jt
+ """.stripMargin).collect().map(_.mkString).mkString
+
+ val shouldContain =
--- End diff --
EliminateSubQueries also take effect during optimiser, isn't it?
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