HyukjinKwon commented on a change in pull request #35296:
URL: https://github.com/apache/spark/pull/35296#discussion_r791566511
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File path: python/pyspark/pandas/generic.py
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@@ -904,6 +905,9 @@ def to_json(
.. note:: output JSON format is different from pandas'. It always use
`orient='records'`
for its output. This behaviour might have to change in the near
future.
+
+ .. note:: Set ignoreNullFields keyword argument to `True` and path is
provided,
+ writer omits columns with all NaN or Null values.
Review comment:
```suggestion
.. note:: Set `ignoreNullFields` keyword argument to `True` to omit
`None` or `NaN` values
when writing JSON objects. It works only when `path` is provided.
```
##########
File path: python/pyspark/pandas/generic.py
##########
@@ -889,6 +889,7 @@ def to_json(
lines: bool = True,
partition_cols: Optional[Union[str, List[str]]] = None,
index_col: Optional[Union[str, List[str]]] = None,
+ ignoreNullFields: bool = False,
Review comment:
```suggestion
```
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