Hyukjin Kwon created SPARK-23446:
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Summary: Explicitly specify supported types in toPandas
Key: SPARK-23446
URL: https://issues.apache.org/jira/browse/SPARK-23446
Project: Spark
Issue Type: Sub-task
Components: PySpark
Affects Versions: 2.3.0
Reporter: Hyukjin Kwon
See:
{code}
spark.conf.set("spark.sql.execution.arrow.enabled", "false")
df = spark.createDataFrame([[bytearray("a")]])
df.toPandas()
spark.conf.set("spark.sql.execution.arrow.enabled", "true")
df.toPandas()
{code}
{code}
_1
0 [97]
_1
0 a
{code}
We didn't finish binary type in Arrow conversion at Python side. We should
disallow it.
Same thine applies to nested timestamps.
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