Li Jin created SPARK-25213:
------------------------------
Summary: DataSourceV2 doesn't seem to produce unsafe rows
Key: SPARK-25213
URL: https://issues.apache.org/jira/browse/SPARK-25213
Project: Spark
Issue Type: Task
Components: SQL
Affects Versions: 2.4.0
Reporter: Li Jin
Reproduce (Need to compile test-classes):
bin/pyspark --driver-class-path sql/core/target/scala-2.11/test-classes
{code:java}
datasource_v2_df = spark.read \
.format("org.apache.spark.sql.sources.v2.SimpleDataSourceV2") \
.load()
result = datasource_v2_df.withColumn('x', udf(lambda x: x,
'int')(datasource_v2_df['i']))
result.show()
{code}
The above code fails with:
{code:java}
Caused by: java.lang.ClassCastException:
org.apache.spark.sql.catalyst.expressions.GenericInternalRow cannot be cast to
org.apache.spark.sql.catalyst.expressions.UnsafeRow
at
org.apache.spark.sql.execution.python.EvalPythonExec$$anonfun$doExecute$1$$anonfun$5.apply(EvalPythonExec.scala:127)
at
org.apache.spark.sql.execution.python.EvalPythonExec$$anonfun$doExecute$1$$anonfun$5.apply(EvalPythonExec.scala:126)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:410)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:410)
{code}
Seems like Data Source V2 doesn't produce unsafeRows here.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
