ueshin commented on a change in pull request #33881:
URL: https://github.com/apache/spark/pull/33881#discussion_r701414469
##########
File path: python/pyspark/pandas/indexing.py
##########
@@ -1370,6 +1365,41 @@ def _select_cols_else(
cols_sel = (cols_sel,)
return self._get_from_multiindex_column(cols_sel, missing_keys)
+ def _extract_rows_sel_cols_sel(self, key: Any) -> Tuple[Any, Any]:
+ from pyspark.pandas.indexes import MultiIndex
+
+ if isinstance(key, tuple):
+ if len(key) != 2:
+ raise SparkPandasIndexingError("Only accepts pairs of
candidates")
+ if isinstance(self._psdf.index, MultiIndex) and not
isinstance(key[0], slice):
+ rows_sel, cols_sel = key, None
+ else:
+ rows_sel, cols_sel = key
+ else:
+ rows_sel = key
+ cols_sel = None
+ return cols_sel, rows_sel
+
+ def _return_psdf_or_psser(
+ self, remaining_index: Optional[int], psdf_or_psser: Union["Series",
"DataFrame"], key: Any
+ ) -> Optional[Union["Series", "DataFrame"]]:
+ from pyspark.pandas.indexes import MultiIndex
+
+ if remaining_index is not None and remaining_index == 0:
+ pdf_or_pser = psdf_or_psser.head(2).to_pandas()
+ length = len(pdf_or_pser)
+ if length == 0:
+ raise KeyError(name_like_string(key))
+ elif length == 1:
+ if isinstance(self._psdf.index, MultiIndex) and not
isinstance(key[0], slice):
+ return pdf_or_pser
Review comment:
`psdf_or_psser`?
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