Conor conormm
joshlk
/ faster_toPandas.py
Last active
May 15, 2023 13:48
PySpark faster toPandas using mapPartitions
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| import pandas as pd | |
| def _map_to_pandas(rdds): | |
| """ Needs to be here due to pickling issues """ | |
| return [pd.DataFrame(list(rdds))] | |
| def toPandas(df, n_partitions=None): | |
| """ | |
| Returns the contents of `df` as a local `pandas.DataFrame` in a speedy fashion. The DataFrame is | |
| repartitioned if `n_partitions` is passed. |