[jira] [Created] (SPARK-37723) Support tuple for non-MultiIndex column name.

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

Haejoon Lee created SPARK-37723:
-----------------------------------

             Summary: Support tuple for non-MultiIndex column name.
                 Key: SPARK-37723
                 URL: https://issues.apache.org/jira/browse/SPARK-37723
             Project: Spark
          Issue Type: Improvement
          Components: PySpark
    Affects Versions: 3.3.0
            Reporter: Haejoon Lee


pandas API on Spark doesn't support tuple as column name for non-MultiIndex column.
>>> psdf = ps.DataFrame(\{"A": [1, 2, 3]})
>>> psdf
   A
0  1
1  2
2  3
>>> psdf[('a', 'b')] = [4, 5, 6]
Traceback (most recent call last):
...
KeyError: 'Key length (2) exceeds index depth (1)'
As pandas support this, we should follow the behavior.



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