Ian Cook created SPARK-48373:
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Summary: Allow schema parameter of createDataFrame() to be
length-1 list or tuple of StructType
Key: SPARK-48373
URL: https://issues.apache.org/jira/browse/SPARK-48373
Project: Spark
Issue Type: Improvement
Components: PySpark
Affects Versions: 3.5.1
Reporter: Ian Cook
Currently in PySpark (both Classic and Connect), if a user passes a length-1
list or tuple of {{StructType}} as the {{schema}} argument to
{{{}createDataFrame{}}}, PySpark raises an unhelpful error message.
Unfortunately it is easy for this to happen. For example if a user leaves a
trailing comma at the end of the line that defines the {{{}StructType{}}}.
Add some simple code to {{createDataFrame}} to handle this case more gracefully
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