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0x0FFF authored
`pyspark.sql.column.Column` object has `__getitem__` method, which makes it iterable for Python. In fact it has `__getitem__` to address the case when the column might be a list or dict, for you to be able to access certain element of it in DF API. The ability to iterate over it is just a side effect that might cause confusion for the people getting familiar with Spark DF (as you might iterate this way on Pandas DF for instance) Issue reproduction: ``` df = sqlContext.jsonRDD(sc.parallelize(['{"name": "El Magnifico"}'])) for i in df["name"]: print i ``` Author: 0x0FFF <programmerag@gmail.com> Closes #8574 from 0x0FFF/SPARK-10417.0x0FFF authored`pyspark.sql.column.Column` object has `__getitem__` method, which makes it iterable for Python. In fact it has `__getitem__` to address the case when the column might be a list or dict, for you to be able to access certain element of it in DF API. The ability to iterate over it is just a side effect that might cause confusion for the people getting familiar with Spark DF (as you might iterate this way on Pandas DF for instance) Issue reproduction: ``` df = sqlContext.jsonRDD(sc.parallelize(['{"name": "El Magnifico"}'])) for i in df["name"]: print i ``` Author: 0x0FFF <programmerag@gmail.com> Closes #8574 from 0x0FFF/SPARK-10417.
