Pandas UDF and Python Type Hint in Apache Spark 3
Splits each cogroup as a Pandas DataFrame, applies a function on each, and combines as a Spark DataFrame The function takes and returns a Pandas DataFrame. ... import pandas as pd from pyspark.sql.functions import pandas_udf @pandas_udf('long') def pandas_plus_one(iterator: Iterator[pd.Series]) -> Iterator[pd.Series]: ................
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