jroof88 commented on a change in pull request #29720:
URL: https://github.com/apache/spark/pull/29720#discussion_r487148520
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File path: python/pyspark/sql/types.py
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@@ -305,7 +305,7 @@ def jsonValue(self):
@classmethod
def fromJson(cls, json):
Review comment:
Nope it won't cause any user-facing error. By doing:
```python
json.get("containsNull", True)
```
The code is getting the value of the `containsNull` key from the JSON if it
exists. If the key does not, it will be `True`. This matches the constructor of
`ArrayType` which has `True` as the default argument for `containsNull`.
I'm happy to add some tests if you believe it is needed but this is be a
no-op change.
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