[jira] [Created] (SPARK-34693) Support null in conversions to and from Arrow

["Laurens (Jira)" <ji...@apache.org>]

Laurens created SPARK-34693:
-------------------------------

             Summary: Support null in conversions to and from Arrow
                 Key: SPARK-34693
                 URL: https://issues.apache.org/jira/browse/SPARK-34693
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 3.1.1
            Reporter: Laurens


Looks like a regression from or related to SPARK-33489.

I got the following running spark 3.1.1. with koalas 1.7.0
{code:java}
TypeError                                 Traceback (most recent call last)
/var/scratch/miniconda3/lib/python3.8/site-packages/pyspark/sql/udf.py in returnType(self)
    100             try:
--> 101                 to_arrow_type(self._returnType_placeholder)
    102             except TypeError:

/var/scratch/miniconda3/lib/python3.8/site-packages/pyspark/sql/pandas/types.py in to_arrow_type(dt)
     75     else:
---> 76         raise TypeError("Unsupported type in conversion to Arrow: " + str(dt))
     77     return arrow_type

TypeError: Unsupported type in conversion to Arrow: NullType
{code}



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org