Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/18462#discussion_r125511395
--- Diff: sql/core/src/test/scala/org/apache/spark/sql/DatasetSuite.scala
---
@@ -321,6 +321,19 @@ class DatasetSuite extends QueryTest with
SharedSQLContext {
((("b", 2), ("b", 2)), ("b", 2)))
}
+ test("joinWith join types") {
+ val ds1 = Seq(1, 2, 3).toDS().as("a")
+ val ds2 = Seq(1, 2).toDS().as("b")
+
+ intercept[AnalysisException] {
--- End diff --
Yeah. Please check the output message.
```
val e = intercept[AnalysisException] {
...
}.getMessages
assert(e.contains("xyz"))
```
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