Damian Momot created SPARK-18717:
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Summary: Datasets - crash (compile exception) when mapping to
immutable scala map
Key: SPARK-18717
URL: https://issues.apache.org/jira/browse/SPARK-18717
Project: Spark
Issue Type: Bug
Affects Versions: 2.0.2
Reporter: Damian Momot
{code}
val spark: SparkSession = ???
case class Test(id: String, map_test: Map[Long, String])
spark.sql("CREATE TABLE xyz.map_test (id string, map_test map<int, string>)
STORED AS PARQUET")
spark.sql("SELECT * FROM xyz.map_test").as[Test].map(t => t).collect()
{code}
{code}
org.codehaus.commons.compiler.CompileException: File 'generated.java', Line
307, Column 108: No applicable constructor/method found for actual parameters
"java.lang.String, scala.collection.Map"; candidates are:
"$line14.$read$$iw$$iw$Test(java.lang.String, scala.collection.immutable.Map)"
{code}
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