Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/22320#discussion_r215246692
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/test/DataFrameReaderWriterSuite.scala
---
@@ -805,6 +805,80 @@ class DataFrameReaderWriterSuite extends QueryTest
with SharedSQLContext with Be
}
}
+ test("Insert overwrite table command should output correct schema:
basic") {
+ withTable("tbl", "tbl2") {
+ withView("view1") {
+ val df = spark.range(10).toDF("id")
--- End diff --
I think @gengliangwang meant case preserving, which is the behavior we are
testing against.
`spark.range(10).toDF("id")` is same as `spark.range(10)`, it's just
clearer to people who don't know `spark.range` outputs a single column named
"id".
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