[jira] [Created] (SPARK-40265) Fix the inconsistent behavior for Index.intersection.

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

Haejoon Lee created SPARK-40265:
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             Summary: Fix the inconsistent behavior for Index.intersection.
                 Key: SPARK-40265
                 URL: https://issues.apache.org/jira/browse/SPARK-40265
             Project: Spark
          Issue Type: Test
          Components: Pandas API on Spark
    Affects Versions: 3.4.0
            Reporter: Haejoon Lee


There is inconsistent behavior on Index.intersection for pandas API on Spark as below:


{code:python}
>>> pidx
Int64Index([1, 2, 3, 4], dtype='int64', name='Koalas')
>>> psidx
Int64Index([1, 2, 3, 4], dtype='int64', name='Koalas')
>>> psidx.intersection(other).sort_values()
MultiIndex([], )
>>> pidx.intersection(other).sort_values()
Traceback (most recent call last):
...
ValueError: Names should be list-like for a MultiIndex
{code}

We should fix it to follow pandas.



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