diff options
author | Nong Li <nong@databricks.com> | 2015-12-15 16:55:58 -0800 |
---|---|---|
committer | Michael Armbrust <michael@databricks.com> | 2015-12-15 16:55:58 -0800 |
commit | 86ea64dd146757c8f997d05fb5bb44f6aa58515c (patch) | |
tree | c06998303d74c6cc15df207bd2ca0128477b7294 /sql/core | |
parent | b24c12d7338b47b637698e7458ba90f34cba28c0 (diff) | |
download | spark-86ea64dd146757c8f997d05fb5bb44f6aa58515c.tar.gz spark-86ea64dd146757c8f997d05fb5bb44f6aa58515c.tar.bz2 spark-86ea64dd146757c8f997d05fb5bb44f6aa58515c.zip |
[SPARK-12271][SQL] Improve error message when Dataset.as[ ] has incompatible schemas.
Author: Nong Li <nong@databricks.com>
Closes #10260 from nongli/spark-11271.
Diffstat (limited to 'sql/core')
-rw-r--r-- | sql/core/src/test/scala/org/apache/spark/sql/DatasetSuite.scala | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/DatasetSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/DatasetSuite.scala index 542e4d6c43..8f8db31826 100644 --- a/sql/core/src/test/scala/org/apache/spark/sql/DatasetSuite.scala +++ b/sql/core/src/test/scala/org/apache/spark/sql/DatasetSuite.scala @@ -481,10 +481,18 @@ class DatasetSuite extends QueryTest with SharedSQLContext { val ds = Seq(2 -> 2.toByte, 3 -> 3.toByte).toDF("a", "b").as[ClassData] assert(ds.collect().toSeq == Seq(ClassData("2", 2), ClassData("3", 3))) } -} + test("verify mismatching field names fail with a good error") { + val ds = Seq(ClassData("a", 1)).toDS() + val e = intercept[AnalysisException] { + ds.as[ClassData2].collect() + } + assert(e.getMessage.contains("cannot resolve 'c' given input columns a, b"), e.getMessage) + } +} case class ClassData(a: String, b: Int) +case class ClassData2(c: String, d: Int) case class ClassNullableData(a: String, b: Integer) /** |