NullType¶
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class 
pyspark.sql.types.NullType¶ Null type.
The data type representing None, used for the types that cannot be inferred.
Methods
fromInternal(obj)Converts an internal SQL object into a native Python object.
json()Does this type needs conversion between Python object and internal SQL object.
toInternal(obj)Converts a Python object into an internal SQL object.
typeName()Methods Documentation
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fromInternal(obj: Any) → Any¶ Converts an internal SQL object into a native Python object.
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json() → str¶ 
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jsonValue() → Union[str, Dict[str, Any]]¶ 
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needConversion() → bool¶ Does this type needs conversion between Python object and internal SQL object.
This is used to avoid the unnecessary conversion for ArrayType/MapType/StructType.
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simpleString() → str¶ 
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toInternal(obj: Any) → Any¶ Converts a Python object into an internal SQL object.
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classmethod 
typeName() → str¶ 
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