Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/4767#discussion_r25408008
--- Diff: sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala
---
@@ -441,4 +441,8 @@ class DataFrameSuite extends QueryTest {
checkAnswer(df.select(df("key")),
testData.select('key).collect().toSeq)
}
+ test("show") {
+ testData.select($"*").show()
--- End diff --
actually this is a bad idea. it prints a lot of garbage to console. maybe
we can ignore the test and add a comment saying this is ignored but we want to
make sure it compiles correctly. do the same for java
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